CN101730972A - 具有在低功率需求水平控制脉宽变异性开关的开关整流器 - Google Patents
具有在低功率需求水平控制脉宽变异性开关的开关整流器 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
- H03M3/476—Non-linear conversion systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
一个功率控制系统包括一开关模式控制器(306)以控制开关功率变换器(352)的开关模式。开关模式控制器(306)生成一开关控制信号(CSI)以控制开关功率变换器(352)中开关(108)的导电性。通过控制开关(108)的导电性控制开关功率变换器(352)的开关模式。开关模式控制器(306)包括一周期发生器(308),以确定定开关控制信号(CSI)的标称周期,并改变预定周期以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号(CSI)。生成具有位于可闻及频段中的宽频谱的开关控制信号,可使所述系统利用位于可闻及频段中的开关频率。
Description
优先权要求和相关专利申请
本申请案基于35 U.S.C.§119(e)和37 C.F.R.§1.78主张2007年5月2日申请,题为“功率因素校正控制器(PFC)装置及方法”之美国临时专利申请案第60/915,547号之权利。
技术领域
本发明大体涉及到电子学领域,尤其是使用一具有在低功率需求水平控制信号脉宽开关的开关功率变换器以转换电压的系统和方法。
背景技术
很多装置利用电力操作。电力最初由一电源提供,如一个公用事业公司,通常它提供稳定输入电压。然而,各种设备使用的电压等级有别于电源所提供的稳定输入电压。例如,基于发光二极管(LED)的照明系统,工作于不同于公用事业公司所提供的电压等级下。为了调节来自电源电压与装置需要利用电压的不同,整流器连接于电源和装置之间以将交流电(AC)源提供的电压水平转换为,如,另外一不同于所供电压水平的交流电源。整流器还可以将AC电力转换为DC(直流电)电力和将DC电力转换为AC电力。
开关功率变换器即为一类整流器的实例。开关功率变换器利用开关及能源储存技术将输入电压转换为一部分与其相连的设备适宜的输出电压。
图1示出了一个功率控制系统100,它包括有一个开关开关功率变换器102。电压电源101提供AC输入“电源”电压Vmains至二极管全桥式整流器103。例如,电压电源101位于一公用事业单位,而AC电源电压Vmains则为,例如,在美国为60Hz/120V,在欧洲为50Hz/230V。整流器103对输入的电源电压Vmains进行整流。整流器103整流输入电源电压Vmains并提供整流后的,时变的初级供电电压VX至开关功率变换器。开关功率变换器102提供近乎恒定的电压功率至负载112的同时对电压电源101维持阻性输入特性。对电压电源101维持阻性输入特性时提供近乎恒定的电压电力至负载112,这就被称为功率因素校正(PFC)。因此,控制功率因素校正后的开关功率变换器102可使输入开关功率变换器102的iL产生与AC电源电压Vmains近乎成比例的变化。
PFC和输出电压控制器114控制开关模式开关108的电阻率,从而提供功率校正因数并调节开关功率变换器102的输出电压VC。PFC和输出电压控制器114通过控制电感电流iL以使平均电感电流iL成线性并直接与初级供电电压VX成比例。电感电流iL与初级供电电压VX的比例系数被调整以调节至负载112的电压。PFC和输出电压控制器114提供一脉宽调节(PWM)后的开关控制信号CS0以控制开关108的传导性。在至少一个实例中,开关108是场效应晶体管(FET),开关控制信号CS0是开关108的触发电压。脉宽和开关控制信号CS0的占空率取决于至少2个信号,即初级供电电压VX和电容器电压/输出电压VC。输出电压VC通常也称为“链接电压”。电流控制环119提供电流iRTN至PFC和输出电压控制器114以使PFC和输出电压控制器114调节平均iL电流至目标iL电流。
当二极管111为反向偏置和初级供电电压VX低于输入电源的RMS值时,电容器106提供储能至负载112。电容器106的值与设计选择相关。在至少一个实例中,它非常大以维持非常稳定输出电压VC,由PFC何输出电压控制器114确定。当使用400V输出电压VC时,电容器106的值为1微法每瓦由开关整流器102提供的最大输出功率。输出电压VC保持在非常稳定的目标值在稳定负载条件随初级供电电压VX频率波动期间。然而,输出电压VC随负载条件变化而变化。PFC和输出电压控制器114通过调节开关控制信号CS0还原输出电压VC至目标值以响应电压VC的变化。在至少一个实例中,PFC和输出电压控制器114包括一小电容115以从初级供电电压VX过滤任何高频信号。
因为寄生阻抗,每次开关108切换于绝缘和传导状态时开关功率变换器102产生开关损耗。寄生阻抗包括穿越开关108的寄生电容132。在变换开关控制信号CS0每期间TT,能源被用于,例如,充电寄生阻抗132。因此,开关功率变换器102在开关控制信号CS0的每期间TT产生开关损耗。
PFC和输出电压控制器114控制着开关功率变换器102的进程,以将预期的能量转送给电容器106。能量需求取决于负载112需求的电压和电流。要确定负载112需求的能源量,PFC和输出电压控制器114包括补偿器128。输入电压控制环116提供一初级供电电压VX样本值PFC和输出电压控制器114。补偿器128决定参考电压VREF(代表输出电压VC的目标电压)和实际输出电压VC(感应自节点122并作为电压回路118的反馈接收)的差别,补偿器128利用技术,如比例积分(PI)型控制,以响应输出电压VC与参考电压VREF的不同。PI控制处理错误从而使PFC和输出电压控制器114顺利适应输出电压VC以避免因小错误信号产生的输出电压VC快速波动。补偿器128提供一输出信号至脉宽调制器(PWM)130以使其产生驱动开关108的开关控制信号CS0。
PFC和输出电压控制器114调节PFC开关108的传导率。初级供电电压VX为,在至少一个实例中,整流正弦波。为了调节传输能源量并维持功率因数接近1,PFC和输出电压控制器114改变开关控制信号CS0的期间TT以使电感器电流iL跟踪初级供电电压VX的变化并保持输出电压VC稳定。当初级供电电压VX从相位角0°增至90°时,PFC和输出电压控制器114增加开关控制信号CS0的周期TT,当初级供电电压VX降低时,PFC和输出电压控制器114降低开关输出信号CS0的周期。
时间T2代表电感器110的回扫时间,这种情况发生于开关108绝缘及二极管111导电条件下。在至少一个实例中,感应器110的值与设计选择有关。感应器110可以是任何类型的磁性组件包括变压器。在至少一个实例中,所选电感器110的值可储备足够的能量(当开关108导电时传输自电压电源101的能量),从而在当开关108绝缘时传输能量至电容器106并进而维持需要的输出电压VC。
当开关108导电,如处于“ON”的状态时,电感器电流iL在时间T1中增加。当开关108绝缘,如处于“OFF”状态时,电感器电流在回扫时间T2中下降,并通过二极管111提供电感电流iL以对电容器106再充电。当开关控制信号CS0处于周期TT电感电流iL达到0时,发生不连续导电模式(DCM)。当在整个周期TT电感电流iL超过0时,发生连续导电模式(CCM)。
PFC和输出电压控制器114设置一追踪初级供电电压VX的目标电流。当电感电流iL在脉宽T1达到目标电流时,开关控制信号CS0打开开关108,然后电感电流iL在回扫时间T2降至0。平均电感电流iL追踪初级供电电压VX从而提供功率因数校正。《功率因数校正整流器的快速电压环路的补偿器设计与稳定性评价》(CompensatorDesign and Stability Assessment for Fast Voltage Loops of Power FactorCorrection Rectifiers),IEEE电力电子学汇刊(IEEE Transactions on PowerElectronics),第12卷,第5期,9月,1007,1719-1729页。(本文将其作为引用),描述了一个PFC和输出电压控制器114的例案。
PFC和输出电压控制器114以比输入电压VX频率更高的频率更新开关控制信号CS0。输入电压VX的频率一般为50-60Hz。1/TT开关控制信号CS0频率为,例如,在或低于130kHz以避免显著开关失效。
图2描绘的是与可听见频率波段图200相对应的人听力敏感度。可听灵敏度分布图202表明声音频率和人对此声音的灵敏度之间的关系。所述的“人”指的是普通人。人一般能听到频率范围在约20Hz至约20kHz之间的声音。因此可闻及频段定义为约20Hz至20kHz。当声音频率从20Hz增加至约1kHz时,人对其的灵敏度也随之增加。在约1kHz,人对声音的灵敏度开始随其频率增加而降低。人对高于20kHz声音的灵敏度降至0。换言之,高于20kHz的声音通常是人听不到的。
人对频率在可闻及频段的音调,如音调204,尤其敏感。人可闻及音调为在一基础频率(在可闻及频段中)的重复声音。人对无音调或噪音样声音则欠敏感。
根据图1和2,功率控制系统100的所有磁路组件都为小扬声器。电线和功率控制系统100的磁路组件上各种力使电线和组件随开关控制信号CS0的开关频率震动。低于20kHz的开关频率可产生可闻及音调,并且多为人所厌烦的。因为负载112所需能量在一小段时间内,如2-4秒,趋于产生很小的变化,开关控制信号CS0的频率将保持近乎稳定,并且因其开关频率低于20kHz而产生可闻及音调。
人们普遍需求更低开关频率的开关控制信号CS0高压晶体管,二极管以及感应器通常具有显著的寄生电容,从而使开关108的高频开关无效。此外,高频开关增加功率控制系统100的电磁干扰(EMI)。虽然需要更低的开关频率,但功率控制系统100尤其避免开关频率低于20kHz以免产生可闻及音调。因此,功率控制系统100的音调制造限制了开关108的开关频率范围。
发明内容
在本发明的一个实例中,一个系统包括一个生成开关控制信号以控制开关功率变换器中的开关模式开关的开关模式控制器。开关模式控制器包括一周期发生器以决定开关控制信号的标称周期并改变标称周期以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。
在本发明的另外一个实例中,一种方法包括生成开关控制信号以控制开关功率变换器中开关模式开关的电阻率。此方法也包括决定开关控制信号的标称周期并改变标称周期以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。此方法另外还包括决定开关控制信号的脉宽并提供开关控制信号至开关功率变换器的开关。
在本发明的另外一个实例中,一个功率控制系统包括一具有开关的开关功率变换器,一开关模式控制器以生成开关控制信号并控制开关功率变换器中开关模式开关的电阻率。开关模式控制器包括一周期发生器以决定开关控制信号的标称周期并改变标称周期以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。
在本发明的另外一个实例中,一套装置包括用来生成开关控制信号并控制开关功率变换器中开关模式开关的电阻率的多种工具。此装置也包括用来决定开关控制信号的标称周期并改变标称周期,以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号的各种工具。此装置也包括用来决定开关控制信号的脉宽并提供开关控制信号至开关功率变换器的开关的各种工具。
附图说明
通过参考附图,本领域内的技术人员可更容易理解本发明,并显然明白它的多种客体,特征和优势。贯穿多幅图的相同参考数字指的是相同或相似的元素。
图1(标示出了以前的技术)示出了一个功率控制系统,它包括有一个开关功率转换器。
图2(标记为已有技术)描述的是与可闻及频段图相对应的人的可闻及灵敏度。
图3A描述的是一功率控制器,其特征为具有一开关整流器和一具有低频广谱策略模块的开关模式控制器。
图3B描述的是一功率控制器,其特征为具有一升压型开关整流器和一具有低频广谱策略模块的开关模式控制器。
图4描述的是一功率控制系统,其特征为具有一开关整流器和一控制信号周期-功率传送相关性策略模块。
图5描述的是一低频广谱策略。
图6-8描述的是一低频广谱策略模块。
图9-11描述的是频率能量关系图,其系开关控制信号对图6-8各自的反馈。
图12-14描述的是开关控制信号CS1的能量与频率关系图。
图15描述的是非线性Δ-∑调制器。
图16描述的是一比例积分器。
图17和18描述的是均方根值发生器。
具体实施方式
一个功率控制系统包括一开关模式控制器以控制开关整流器的开关模式。在至少一个实例中,此开关模式控制器也控制开关整流器的功率因素校正。开关模式控制器生成一开关控制信号以控制开关功率变换器中开关的电阻率。通过控制开关的电阻率控制开关功率变换器的开关模式。开关功率变换器可以是任意类型的开关整流器,如降压型,升压型,升压-降压型,Cúk型,Sepic型等。开关模式控制器控制与开关功率变换器类型相一致的开关。为了控制功率因素校正,开关模式控制器产生输入电流至开关功率变换器以与时变电压成比例改变输入至开关功率变换器的电源信号。
开关模式控制器包括一周期发生器,可决定开关控制信号的标称周期并改变预定周期以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。生成开关控制信号(在可闻及频段中具有宽频谱)可使功率控制系统利用开关频率,此频率处于可闻及频段中并在任何特定频率具有相对低功率,在至少一个实例中,也可以避免音调。宽频谱可被塑造成降低位于可闻及频段的特定敏感区域中的各种频率功率至最小化。因此,功率控制系统可利用在可闻及频段中的开关频率而不产生声音。
图3A描述的是一功率控制系统350,其特征为具有一开关功率变换器352和一开关模式控制器306。开关功率变换器350可以是任何类型的开关功率变换器,如降压型,升压型,升压-降压型,Cúk型,Sepic型等。开关模式控制器306控制与开关功率变换器类型一致的开关模式开关108(本文引用为“开关108”)。接下来描绘的是与升压型开关功率变换器相关的功率控制系统350。开关模式控制器306的原理适用于任何类型的开关功率变换器。其中,所述控制器原理决定一段时期的开关控制信号CS1并在预定周期与可闻及频段中至少一部分相符时改变预定周期以生成宽频谱的开关控制信号CS1。在至少一个实例中,预定周期与被称作标称周期TTN。可闻及频段(其中,开关控制信号CS1的相应周期发生变化)的一部分或多部分与设计选择相关。在至少一个实例中,此部分为整个可闻及频段。在另一个实例中,此部分为人最敏感的可闻及频段,如50Hz-10kHz。
图3B描绘的是一功率控制系统300,其特征为具有开关功率变换器302和开关模式控制器306。功率控制系统300代表功率控制系统350的一个实例。开关功率变换器302是升压型整流器,开关功率变换器302代表开关功率变换器352的一个实例。开关功率变换器302可以是任何类型的开关功率变换器,如降压型,升压型,升压-降压型,Cúk型,Sepic型等。开关模式控制器控制与开关功率变换器类型相一致的开关。
开关模式控制器306包括并利用一周期发生器308(具有一低频广谱策略模块)生成脉宽已调整的开关控制信号CS1。开关模式控制器306使用代表初级供电电压VX和输出电压VC反馈信号生成开关控制信号CS1。在至少一个实例中,开关功率变换器302使用与开关功率变换器102相同的方法进行配置。整流器103整流由电压电源304提供的输入电压VIN为时变的初级供电电压VX。在至少一个实例中,电压电源304与电压电源101相同,输入电压VIN与电源电压Vmains相同。
在至少一个实例中,当周期发生器308决定周期TT在可闻及频段中相应频率的开关控制信号CS1时,周期发生器308扩大开关控制信号CS1的频谱,以最小化任何由开关模式开关108开关所产生的声音。周期发生器308可利用任何数量的低频宽谱策略。在至少一个实例中,周期发生器308也可扩大开关控制信号CS1的频谱为不可闻及频率,其方法与扩大开关控制信号CS1频谱为可闻及频率的方法相同,例如降低EMI发射。
为了控制功率因数校正,开关模式控制器306使输入至开关功率变换器302的电流iIN产生与时变电压(由电源信号提供至开关功率变换器)成比例地改变。美国专利申请第11/967,269号,题为“使用具有非线性功率转换流程模型的非线性Δ-∑调制器的功率控制系统”(PowerControl System Using a Nonlinear Delta-Sigma Modulator with NonlinearPower Conversion Process Modeling),申请于2007年12月31日,代理者Cirrus Logic公司,发明者John L.Melanson描述控制功率因数校正的典型系统和方法,并以引用方式并入本文。
图4描绘的是开关模式控制器400,代表开关模式控制器306的一个实例。开关模式控制器400决定开关控制信号CS1,它是根据开关控制信号生成策略,通过低频广谱策略模块402实施。如后文所详细描述,低频广谱策略模块402代表策略的一个实例。所述策略被周期发生器308利用已生成周期TT的开关控制信号CS1并在至少可闻及频段,作为对负载112估计功率需求的反应,扩大开关控制信号CS1的频谱。在至少一个实例中,负载112的估计功率需求由K代表。K通过作为低频广谱策略模块402而提供。“K”是负载功率需求估计器403的输出。在另外一个实例中,输送至负载112的估计功率通过将电压控制回路318得到的平均输出电压VC与开关功率变换器402的平均输出电流iOUT相乘,乘积可提供给或决定于低频广谱策略模块402。输送至负载112的估计功率测量与设计选择相关并可由许多方法中的任意一种确定。
开关模式控制器400决定开关控制信号CS1的周期TT及其脉宽T1。在至少一个实例中,脉宽周期T1的平方,如T12,根据方程[1]确定。
“T1”为控制信号CS1的脉宽时间。“L”表示电感器110的电感值。VX_RMS代表初级供电RMS电压VX_RMS。“K”代表负载112的功率需求的估计值,它由电压控制回路418中的负载功率需求估计器403确定。“TT”是控制信号CS1的周期,它由控制信号周期生成策略模块402生成。“VX”为初级供电电压VX的当前值的采样值。“VC”为电压控制回路418的输出电压VC的采样值。在优选的实例中,计算等式[1]通通过具有合适定标值和工作长度的定点运算完成。
因为开关控制信号CS1频率属于至少一部分可闻及频段,开关控制信号周期TT被称为标称周期TTN(图3A)标称周期TTN与开关控制信号CS1的标称频率fN相应。在至少一个实例中,周期发生器308改变标称周期TTN以生成宽频谱的开关控制信号CS1。标称周期TTN的实际值与设计选择相关,并且,如,取决于开关功率变换器402组件的值,如感应器110,开关108,电容106和二极管111的特性及瞬时初级供电电压VX,初级供电RMS电压VX_RMS和输送至负载112的功率。如下文所详细描述,当标称频率fN位于至少一部分可闻及频段中时,低频广谱策略模块402改变标称周期TTN以扩大标称频率fN的频谱。
RMS值发生器404从电压回路316的取样初级供电电压VX确定初级供电RMS电压VX_RMS。组件406接收初级供电RMS电压VX_RMS值并确定2·L/(VX_RMS 2)。“2·L/(VX_RMS 2)”代表一标度因子。升压因子模块408确定升压因子(1-VX/VC)。乘法器410将开关控制信号CS1周期TT,模块406的输出值,升压因子模块408的输出值及估计功率需求K相乘以生成T12。非线性Δ-∑调制器412确定开关控制信号CS1的脉宽T1。脉宽调制器(PWM)414接收脉宽时间T1和周期TT并生成开关控制信号CS1从而使开关控制信号具有脉宽T1和周期TT。
在至少一个实例中,为确保开关整流器302在DCM中起作用,感应器110的L值根据等式[2]:
“L”是感应器110的值。“Vmin”初级供电RMS电压VX_RMS的最小预期值。“Pmax”负载112的最大需求功率。“J”为过度设计系数,任何大于1的值表明过度设计。在至少一个实例中,“J”为1.1。“fmax”为控制信号CS1的最大频率。“VC”标称输出电压VC。回扫时间T2可依据方程[3]确定。
在至少一个实例中,为避免感应器110饱和,感应器110的L值可使输入电流的峰值iIN_PEAK大于或等于VX·T1/L的最大值。在低直流电压期间初始电源电压VX达到峰值实现全输出功率时,出现输入电流峰值iIN_PEAK。
图5描绘的是典型的低频广谱策略500,其用于扩大开关频率在可闻及频段的开关控制信号CS1的频谱。特定的频率扩大策略和标称周期TTN的范围与设计选择相关。传送至负载112的估算功率对开关控制信号CS1周期TT的曲线502表明传送至负载112的估算功率对开关控制信号CS1周期TT这两者呈逆相关。曲线502表明标称周期TTN与开关控制信号CS1的标称频率fN相应。传送至负载112的估算功率对开关控制信号CS1周期TT的特定关系曲线502可以改变,而且这与设计选择相关。
当开关控制信号CS1的标称周期TT超出50微秒时,开关控制信号CS1的标称频率fN就位于可闻及频段,低频宽谱策略模块402改变标称周期TTN以产生宽频谱的开关控制信号CS1,撞虚线盒504描述周期TT在与标称频率fN对应的标称周期TTN周围的散布幅度,从而表明开关控制信号CS1频谱的扩展度。扩展开关控制信号CS1的频谱可传播音调的功率,从而在任何特定频率降低功率。扩展开关控制信号CS1的频谱可使开关模式控制器306产生周期等于或大于50微秒的开关控制信号同时最小化在可闻及频率的功率。
在至少一个实例中,传送至负载112的估计功率和开关控制信号CS1的周期TT的逆相关提高了开关模式控制器306的效率。如与本发明申请案同时申请的美国专利申请号_________题为“高效周期开关控制信号的开关整流器”(Switching Power Converter With EfficientSwitching Control Signal Period Generation)与本发明申请案同时申请,代理人卷号1677-CA,专利权人Cirrus Logic公司,发明人John L.Melanson,所述。以上文献以参考方式并入本文。
图6描绘的是低频广谱策略模块600,并且当标称周期TTN大于或等于50微秒时此模块代表低频广谱策略模块402的实例。策略模块600生成开关控制信号CS1的周期TTs以扩大开关控制信号CS1的频谱并改变其频率使之与策略模块600生成的周期相对应并进入人低灵敏度区域。
策略模块600包括一可生成伪随机数PRN的伪随机数(PRN)发生器602。伪随机数PRN供至滤波器604以生成过滤后的伪随机数PRNF。在至少一个实例中,滤波器604为具有转移功能的高通滤波器,如(1-z-1)/(1-.99z-1)。“z-1”代表在z域有一单位延迟。过滤后的伪随机数PRNF输入至随机数发生器606。在至少一个实例中,过滤后的伪随机数PRNF被标定并与标称周期TTN一起被处理以生成随机化的周期TTR。策略模块600重复随机化周期TTR的生成以生成多种随机化周期TTR从而扩大标称周期TTN的范围。在至少一个实例中,过滤后伪随机数PRNF的标定决定开关控制信号CS1开关频率的分布幅度。随机数发生器606可以多种方法中任意一种处理伪随机数PRNF和标称周期TTN。例如,以过滤的伪随机数PRNF可被标定,然后随机数生成程序606可通过将TTN值乘以伪随机数PRN以生成随机化周期TTR,或将TTN值加上伪随机数PRN,随机数生成程序606可放大标称周期TTN的随机化数值。特定标定尺度和开关控制信号CS1的频率分布与设计选择相关。在至少一个实例中,策略模块600具有一运转频率以生成许多伪随机数PRN,多种已过滤的伪随机数PRNF,和对各标称周期TTN的多种随机化周期TTR从而使各标称周期TTN的平均随机化周期TTR约等于标称周期TTN。在至少一个实例中,使用高通滤波器604导致随机化周期TTR的平均值与标称周期TTN相同,高通滤波器604没有DC组件。高通滤波器604也将更多声音能量转变进入人耳欠敏感的更高频率。
在至少一个实例中,滤波器604为低通滤波器。低通滤波器604执行平均功能,使随机化周期TTR的平均数等于标称周期TTN。在至少一个实例中,策略模块600设计用途在于,使在2-4秒时限内生成的周期TT平均数与标称周期TTN一致。
图9描绘的是由具有低通滤波器604的策略模块600生成的开关控制信号CS1频谱的能量对频率关系图900。灵敏度分布图902表明人听觉灵敏度等级对频率关系。撞击音904表示开关控制信号CS1的频率和能量,所述控制信号CS1的周期TT为未扩大开关控制信号CS1的频谱生成。开关控制信号CS1频率图906代表与音调904的周期相关频率的典型扩大。图906中的开关控制信号CS1频率由策略模块600生成并处于人欠敏感频率范围。
图7描绘的是低频广谱策略模块700,并且当标称周期TTN大于或等于50微秒时此模块代表低频广谱策略模块402的实例。伪随机数PRN发生器602生成伪随机数PRN。加算器702将与1/fLand-1/fL几乎相同数加入伪随机数PRN。“fL”代表由策略模块700生成周期的最大和最小频率限制。随机数生成器604处理伪随机数PRN+/-fL和标称周期TTN以生成随机化周期TTR。在至少一个实例中,随机数生成器604将PRN+/-fL和标称周期TTN相加,在至少一个实例中,随机数将PRN+/-fL和标称周期TTN相乘。标称周期TTN的随机化可用随机化百分比标示。换言之,标称周期TTN可被因子+/-x%随机化。其中“x”代表一个特定的百分比。此特定的百分比为设计选择,更大的百分比通常代表更广的开关控制信号CS1范围。在至少一个实例中,策略模块700具有一运转频率以生成许多伪随机数PRN和多种伪随机数PRN,和对各标称周期TTN的多种随机化周期TTR,从而使各标称周期TTN的平均随机化周期TTR约等于标称周期TTN。从而,频率1/TTR被+/-fL改变以扩大开关控制信号CS1的范围。
图10描述的是由策略模块700生成开关控制信号CS1频谱的能量对频率关系图1000。撞击音904表明开关控制信号CS1的频率和能量,所述控制信号CS1的周期TT为未扩大开关控制信号CS1的频谱生成。正如图1000所指出,与策略模块700生成开关控制信号CS1的周期相应的开关控制信号CS1的频率分布于如下频率中,例如,由频谱1002显示,分布于从1/TTN-fL至1/TTN+f并且围绕标称频率fN=1/TTN。开关控制信号CS1频谱的扩大可避免重复音和分布能量与多种频率,从而开关控制信号CS1生成的任何声音为人不易闻及的。
图8描述的是低频广谱策略模块800,并且当标称周期TTN大于或等于50微秒时此低频广谱策略模块800代表低频广谱策略模块402的实例。策略模块800与Δ-∑调制器802一起调节策略模块700的TT700输出。TT700以对开关控制信号CS1的扩大频谱(与策略模块700生成的周期TT700相对应)进行噪音整形。Δ-∑调制器802进一步扩大标称周期TTN的频谱,可避免重复音。在至少一个实例中,策略模块800具有一足够高的运转频率以使各标称周期TTN·的随机化周期TTR的平均值约等于标称周期TTN。典型的常规Δ-∑调制器设计和操作描述于《明白Delta-Sigma数据转换器》(Understanding Delta-SigmaData Converters)Schreier和Temes著,IEEE出版于2005年,ISBN0-471-46585-2。
图11描述的是由策略模块800生成开关控制信号CS1频谱的能量对频率关系图1100。撞击音904表明开关控制信号CS1的频率和能量,所述控制信号CS1的周期TT为未扩大开关控制信号CS1的频谱生成。正如图1102所示,与策略模块800生成开关控制信号CS1周期相对应的开关控制信号CS1频率被塑造成分布于可闻及频段的频率。开关控制信号CS1频谱的扩大可避免重复音和分布能量与多种频率,从而开关控制信号CS1生成的任何声音为人不易闻及的。
图12描述的是频率对开关控制信号CS1能量的关系图1200,开关控制信号CS1的确定周期TT与多种位于可闻及频段中的频率相对应。图1200表示确定周期TT无随机化。
图13描述的是频率对开关控制信号CS1能量的关系图1300,其周期为开关控制信号CS1多种确定周期TTN的随机化周期TTR。图1300说明开关控制信号CS1频谱的显著扩大和低峰值能量水平与图1200中的峰值能量水平有关。低峰值能量水平导致开关控制信号CS1产生低能量声音。
图14描述的是频率对开关控制信号CS1能量的关系图1400,其周期为开关控制信号CS1多种确定周期TTN的随机化周期TTR。在图1400中,开关控制信号CS1的频谱用策略模块600和高通滤波器604扩大。在这个实例中,高通滤波器604具有转移(1-z-1)/(1-.99z-1)的功能。图1400说明峰值能量水平下降约12dB与图1300所述的峰值能量水平相关。更低的峰值能量水平导致开关控制信号CS1产生更低能量的声音。
图15显示的是非线性Δ-∑调制器1500,其系代表非线性Δ-∑调制器412的一个实例。非线性Δ-∑调制器1500调节开关整流器302的非线性功率传递进程。开关功率转换器302的非线性能量传递过程可以模拟成平方函数x2。非线性Δ-∑调制器1500包括非线性系统反馈模块1502由x2表示。反馈模块1502的输出为延迟-1数字转换器输出信号T1的平方,如[T1(n-1)]2。延迟z-11506表示延迟-1数字转换器的输出信号T1。负[T1(n-1)]2通过加算器1512加入T12。非线性Δ-∑调制器1500包括一独立于数字转换器1508的补偿模块1504。非线性补偿模块1504处理环路滤波器1510的输出信号,即用平方根功能x1/2以补偿非线性反馈模块1502所产生的非线性。补偿模块1504的输出被数字转换器1508量子化以生成开关控制信号CS1脉宽T1。
图16描绘的是PI补偿器1600,其系代表负载功率需求估算器403的一个实例。PI补偿器1600生成负载功率需求信号K。负载功率需求信号K在如下情况发生变化:参考电压VREF和输出电压VC之间的差异变化时,由错误发生器1601生成的错误信号ev变化时。参考信号VREF被设置为输出电压VC的期望值。PI补偿器1600包括基础信号通道1602和比例信号通道1604。基础信号通道包括一发生器1606以生成错误信号ev和一增益模块1608以将基础错误信号ev乘以增益因子g2并生成基础输出信号IPW。比例通道1604包括一增益模块1610以将错误信号ev乘以增益因子g1并生成成比例的输出信号PPW。加算器1612将基础输出信号IPW和比例输出信号PPW相加以生成负载功率需求信号K。
增益因子g1和g2的值与设计选择相关。增益因子g1和g2影响开关模式控制器306的回应性。典型的增益因子g1和g2的值陈述于下述文献忠图8-31的模拟代码:美国专利申请第11/967,269号,题为“使用非线性Δ-∑调制器调节非线性功率转换进程的功率控制系统”(Power Control System Using a Nonlinear Delta-Sigma Modulator withNonlinear Power Conversion Process Modeling)(专利权人:Cirrus Logic公司。发明人John L.Melanson。,申请于2007年12月31日。)。美国专利申请第11/967,269号描述典型的系统和方法,并以引用方式并入本文。开关模式控制器306更快的响应时间可使开关控制信号CS1更迅速适应最小化错误信号ev。如果响应太慢,输出电压VC可能无法跟踪负载112功率需求的变化,进而无法维持近乎恒定的值。如果响应太快,输出电压VC可能对负载112功率需求的微小短暂波动产生反应。这些快速反应可能在开关模式控制器306中产生振动,损害或降低各组件的寿命。比例生成器1600的特定反应比率因设计选择而定。
图17和18描绘的是RMS值发生器404的典型实例。初级供电电压VX的RMS值为初级供电电压VX平方的平均值的平方根。RMS值发生器1700接收在一周期的初级供电电压{VX}中初级供电电压VX的抽样值,平方模块1702将初级供电电压的每一个抽样值平方以确定{VX 2}。低通滤波器1704确定{VX 2}的平均值VX 2 _MEAN。平方根模块1706确定VX 2 _MEAN的平方根,以确定初级供电RMS电压VX_RMS。
RMS值发生器1800接收初级供电电压VX,峰值探测器1802确定其峰值VX_PEAK。因为初级供电电压VX在至少一个实例中为正弦波,用乘法器1804将VX_PEAK乘以√2/2,以生成初级供电RMS电压VX_RMS。在至少一个实例中,VX_PEAK的精确值并非必须条件,用RMS值发生器1800确定VX_PEAK足够适用。
因此,生成开关控制信号(在可闻及频段中具有宽频谱)可使功率控制系统300利用开关频率,在至少一个实例中,此频率处于可闻及频段中,并在任何特定频率具有相对低功率,可以避免音调。
尽管已经对本发明作了详细描述,但应明白,在不偏离所附权利要求中定义的本发明之范围和精神情况下仍可以进行多种变化、替代和更改。
Claims (25)
1.一个系统,包括:
一开关模式控制器,其系用于生成开关控制信号以控制开关功率变换器中开关模式开关的导电性,其中,所述开关模式控制器包括:
一周期发生器,以决定开关控制信号的标称周期并改变标称周期,以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。
2.根据权利要求1所述的系统,其中周期发生器被额外配置以生成一具有随机选择周期宽频谱的开关控制信号。
3.如权利要求3所述的系统,其中随机选择的周期的平均值约等于标称周期。
4.如权利要求1所述的系统,其中周期发生器另外包括一伪随机数发生器以生成伪随机数,周期发生器额外配置以基于此伪随机数生成一具有随机选择周期的宽频谱开关控制信号。
5.根据权利要求1所述的系统,其中周期发生器被额外配置以生成一宽频谱开关控制信号,其周期利用低通滤过的伪随机数确定。
6.根据权利要求1所述的系统,其中周期发生器被额外配置以生成一宽频谱开关控制信号,其周期利用高通滤过的伪随机数确定。
7.根据权利要求1所述的系统,其中周期发生器被额外配置以生成一宽频谱开关控制信号,其周期使用标称周期的Δ-∑调制后的随机值。
8.根据权利要求1所述的系统,其中可闻及频段大约在20Hz至20kHz。
9.根据权利要求1所述的系统,其中开关模式控制器被额外配置以控制开关模式开关的导电性,从而使输入至开关功率变换器的电流发生与输送至开关功率变换器的时变电压电源信号成比例的变化,其中所述开关模式控制器另外包括:
一脉宽发生器用于确定开关控制信号的脉宽,作为对如下因素的反应:(i)开关控制信号的标称周期,(ii)电压电源信号的电压水平,及(iii)开关功率变换器输出电压信号的电压水平。
10.一种方法包括:
生成开关控制信号以控制开关功率变换器中开关模式开关的导电性;
确定开关控制信号的标称周期;
其当标称周期与可闻及频段中至少一部分频率相符时,
改变标称周期以生成宽频谱的开关控制信号;
确定开关控制信号的脉宽;和
提供开关控制信号至开关功率变换器的开关。
11.根据权利要求10所述的方法:
控制开关的导电性,以使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例的变化;和
确定开关控制信号的脉宽另外包括确定对如下因素反应的开关控制信号脉宽:(i)开关控制信号的标称周期,(ii)电压电源信号的电压水平,及(iii)开关功率变换器输出电压信号的电压水平。
12.根据权利要求10所述的方法,其中改变标称周期以生成宽频谱开关控制信号另外包括生成具有随机选择周期的宽频谱开关控制信号。
13.如权利要求12所述的方法,其中随机选择的周期的平均值约等于标称周期。
14.根据权利要求10所述的方法,其中改变标称周期以生成宽频谱开关控制信号另外包括,生成伪随机数和基于此伪随机数生成具有随机选择周期的宽频谱开关控制信号。
15.根据权利要求10所述的方法,其中改变标称周期以生成宽频谱开关控制信号另外包括,生成伪随机数和基于此伪随机数生成具有随机选择周期的宽频谱开关控制信号。
16.根据权利要求10所述的方法,其中改变标称周期以生成宽频谱开关控制信号另外包括生成宽频谱开关控制信号,其周期为使用高通滤过的伪随机数确定的周期。
17.根据权利要求10所述的方法,其中改变标称周期以生成宽频谱开关控制信号另外包括生成宽频谱开关控制信号,其周期使用标称周期的Δ-∑调制后的随机值。
18.根据权利要求10所述的方法,其中可闻及频段大约在20Hz至20kHz。
19.权利要求10所述的方法还包括:
控制开关的导电性以使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例发生变化;和
确定开关控制信号的脉宽另外包括确定对如下因素响应的开关控制信号脉宽:(i)开关控制信号的标称周期,(ii)电压电源信号的电压水平,及(iii)开关功率变换器输出电压信号的电压水平。
20.一个功率控制系统,其包括:
一具有开关的开关功率变换器;和
一开关模式控制器,其系用于生成开关控制信号以控制开关功率变换器中开关模式开关的导电性,其中,所述开关模式控制器包括:
一周期发生器以决定开关控制信号的标称周期并改变标称周期,以使其在当标称周期与可闻及频段中至少一部分频率相符时产生宽频谱的开关控制信号。
21.根据权利要求20所述的功率控制系统,其中周期发生器被额外配置以生成一具有随机选择周期的宽频谱开关控制信号。
22.根据权利要求20所述的功率控制系统,其中开关功率变换器另外包括一输入节点,一连接于输入节点和开关的感应器,一连接于开关盒感应器二极管,及一连接于二极管的输出电容。
23.根据权利要求20所述的功率控制系统,其中开关模式控制器被额外配置以控制开关模式开关的导电性,从而使输入至开关功率变换器的电流发生与输送至开关功率变换器的时变电压电源信号成比例变化,其中所述开关模式控制器另外包括:
一脉宽发生器用于确定开关控制信号的脉宽,作为对如下因素的反应:(i)开关控制信号的标称周期,(ii)电压电源信号的电压水平,及(iii)开关功率变换器输出电压信号的电压水平。
24.一套装置,其包括:
一件构件,其系用来生成开关控制信号以控制开关功率变换器中开关模式开关的导电性;
一件构件,其系用来确定开关控制信号的标称周期;
一件构件,其系当标称周期与可闻及频段中至少一部分频率相符时用来改变标称周期以生成宽频谱的开关控制信号;
一件构件,其系用来确定开关控制信号的脉宽;和
一件构件,其系用来提供开关控制信号至开关功率变换器的开关。
25.根据权利要求24所述的装置,其另外包括:
构件,其系用来控制开关的导电性以使输入至开关功率变换器的电流发生与输入至开关功率变换器的电压电源信号成比例的变化;和
构件,其系用来确定开关控制信号的脉宽另外包括确定对如下因素的反应的开关控制信号脉宽:(i)开关控制信号的标称周期,(ii)电压电源信号的电压水平,及(iii)开关功率变换器输出电压信号的电压水平。
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PCT/US2008/062423 WO2008137679A1 (en) | 2007-05-02 | 2008-05-02 | Switching power converter with switch control pulse width variability at low power demand levels |
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CN200880014472.5A Active CN101675593B (zh) | 2007-05-02 | 2008-05-02 | 使用带非线性过程模型的非线性△∑调节器的控制系统 |
CN200880014462A Pending CN101730972A (zh) | 2007-05-02 | 2008-05-02 | 具有在低功率需求水平控制脉宽变异性开关的开关整流器 |
CN2008800145338A Active CN101720526B (zh) | 2007-05-02 | 2008-05-02 | 可减少反馈信号的功率因数校正控制器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103636109A (zh) * | 2011-06-03 | 2014-03-12 | 塞瑞斯逻辑公司 | 根据开关电力转换器中的次级侧电压的初级侧感测的控制数据确定 |
CN107222088A (zh) * | 2016-03-22 | 2017-09-29 | 台达电子工业股份有限公司 | 控制模块、切换式电源供应装置及峰值电流模式控制方法 |
Families Citing this family (421)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7812576B2 (en) | 2004-09-24 | 2010-10-12 | Marvell World Trade Ltd. | Power factor control systems and methods |
US8672732B2 (en) | 2006-01-19 | 2014-03-18 | Schneider Electric It Corporation | Cooling system and method |
US8198873B2 (en) * | 2006-03-10 | 2012-06-12 | Texas Instruments (Cork) Limited | Power converter |
US7911812B2 (en) * | 2007-01-22 | 2011-03-22 | Power Integrations, Inc. | Control arrangement for a PFC power converter |
US7885085B2 (en) * | 2007-01-22 | 2011-02-08 | Power Integrations, Inc. | Cascaded PFC and resonant mode power converters |
US7848117B2 (en) | 2007-01-22 | 2010-12-07 | Power Integrations, Inc. | Control arrangement for a resonant mode power converter |
US8076920B1 (en) | 2007-03-12 | 2011-12-13 | Cirrus Logic, Inc. | Switching power converter and control system |
US7288902B1 (en) | 2007-03-12 | 2007-10-30 | Cirrus Logic, Inc. | Color variations in a dimmable lighting device with stable color temperature light sources |
US7804256B2 (en) | 2007-03-12 | 2010-09-28 | Cirrus Logic, Inc. | Power control system for current regulated light sources |
US8018171B1 (en) | 2007-03-12 | 2011-09-13 | Cirrus Logic, Inc. | Multi-function duty cycle modifier |
US8723438B2 (en) * | 2007-03-12 | 2014-05-13 | Cirrus Logic, Inc. | Switch power converter control with spread spectrum based electromagnetic interference reduction |
US7667408B2 (en) | 2007-03-12 | 2010-02-23 | Cirrus Logic, Inc. | Lighting system with lighting dimmer output mapping |
US7969756B1 (en) * | 2007-04-16 | 2011-06-28 | Lockheed Martin Corporation | Real-time switching regulator monitor |
US7554473B2 (en) | 2007-05-02 | 2009-06-30 | Cirrus Logic, Inc. | Control system using a nonlinear delta-sigma modulator with nonlinear process modeling |
EP2147585B1 (en) | 2007-05-15 | 2016-11-02 | Schneider Electric IT Corporation | Method and system for managing facility power and cooling |
JP4577525B2 (ja) | 2007-05-31 | 2010-11-10 | 東芝ライテック株式会社 | 照明装置 |
US8102127B2 (en) | 2007-06-24 | 2012-01-24 | Cirrus Logic, Inc. | Hybrid gas discharge lamp-LED lighting system |
WO2009023205A1 (en) * | 2007-08-14 | 2009-02-19 | Ramu, Inc. | Motor power factor correction apparatus and method |
US20090241592A1 (en) * | 2007-10-05 | 2009-10-01 | Emerson Climate Technologies, Inc. | Compressor assembly having electronics cooling system and method |
US8950206B2 (en) | 2007-10-05 | 2015-02-10 | Emerson Climate Technologies, Inc. | Compressor assembly having electronics cooling system and method |
US7895003B2 (en) | 2007-10-05 | 2011-02-22 | Emerson Climate Technologies, Inc. | Vibration protection in a variable speed compressor |
US8459053B2 (en) | 2007-10-08 | 2013-06-11 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US8448459B2 (en) | 2007-10-08 | 2013-05-28 | Emerson Climate Technologies, Inc. | System and method for evaluating parameters for a refrigeration system with a variable speed compressor |
US8418483B2 (en) | 2007-10-08 | 2013-04-16 | Emerson Climate Technologies, Inc. | System and method for calculating parameters for a refrigeration system with a variable speed compressor |
US9541907B2 (en) | 2007-10-08 | 2017-01-10 | Emerson Climate Technologies, Inc. | System and method for calibrating parameters for a refrigeration system with a variable speed compressor |
US8539786B2 (en) | 2007-10-08 | 2013-09-24 | Emerson Climate Technologies, Inc. | System and method for monitoring overheat of a compressor |
US8488353B2 (en) * | 2007-10-31 | 2013-07-16 | International Rectifier Corporation | Control integrated circuit with combined output and input |
US7728571B2 (en) * | 2007-11-06 | 2010-06-01 | Richtek Technology Corporation, R.O.C. | Load-dependent frequency jittering circuit and load-dependent frequency jittering method |
US8344639B1 (en) * | 2008-11-26 | 2013-01-01 | Farhad Bahrehmand | Programmable LED driver |
US7804697B2 (en) * | 2007-12-11 | 2010-09-28 | Cirrus Logic, Inc. | History-independent noise-immune modulated transformer-coupled gate control signaling method and apparatus |
EP2238676B1 (en) * | 2008-01-24 | 2012-03-14 | Continental Automotive Systems US, Inc. | Multi-stage switching power supply |
EP2083511B1 (fr) * | 2008-01-25 | 2014-01-22 | Actaris SAS | Alimentation à pile pour èmetteur radiofréquences |
US7755525B2 (en) * | 2008-01-30 | 2010-07-13 | Cirrus Logic, Inc. | Delta sigma modulator with unavailable output values |
US8022683B2 (en) | 2008-01-30 | 2011-09-20 | Cirrus Logic, Inc. | Powering a power supply integrated circuit with sense current |
US8008898B2 (en) | 2008-01-30 | 2011-08-30 | Cirrus Logic, Inc. | Switching regulator with boosted auxiliary winding supply |
US8576589B2 (en) | 2008-01-30 | 2013-11-05 | Cirrus Logic, Inc. | Switch state controller with a sense current generated operating voltage |
US20090218997A1 (en) * | 2008-02-29 | 2009-09-03 | Hey George M | Power supply circuit |
EP2263417A1 (en) * | 2008-03-19 | 2010-12-22 | Nxp B.V. | A controller and method of operating a controller |
US8363439B2 (en) * | 2008-04-22 | 2013-01-29 | Flextronics Ap, Llc | Efficiency improvement in power factor correction |
US8085024B2 (en) * | 2008-04-29 | 2011-12-27 | Exar Corporation | Self-tuning digital current estimator for low-power switching converters |
US7952293B2 (en) * | 2008-04-30 | 2011-05-31 | Lsi Industries, Inc. | Power factor correction and driver circuits |
US8432108B2 (en) * | 2008-04-30 | 2013-04-30 | Lsi Industries, Inc. | Solid state lighting, driver circuits, and related software |
US20090296448A1 (en) * | 2008-05-30 | 2009-12-03 | Fu Lung Hsueh | Diode as voltage down converter for otp high programming voltage applications |
WO2009152468A2 (en) * | 2008-06-13 | 2009-12-17 | The Regents Of The University Of Colorado, A Body Corporate | Monitoring and control of power converters |
US8102164B2 (en) * | 2008-06-19 | 2012-01-24 | Power Integrations, Inc. | Power factor correction converter control offset |
US8008902B2 (en) * | 2008-06-25 | 2011-08-30 | Cirrus Logic, Inc. | Hysteretic buck converter having dynamic thresholds |
JP2010035271A (ja) * | 2008-07-25 | 2010-02-12 | Sanken Electric Co Ltd | 電力変換装置 |
US8344707B2 (en) | 2008-07-25 | 2013-01-01 | Cirrus Logic, Inc. | Current sensing in a switching power converter |
US8014176B2 (en) | 2008-07-25 | 2011-09-06 | Cirrus Logic, Inc. | Resonant switching power converter with burst mode transition shaping |
US8212491B2 (en) | 2008-07-25 | 2012-07-03 | Cirrus Logic, Inc. | Switching power converter control with triac-based leading edge dimmer compatibility |
US8102679B2 (en) * | 2008-08-15 | 2012-01-24 | Infineon Technologies Ag | Utilization of a multifunctional pin to control a switched-mode power converter |
US8487546B2 (en) | 2008-08-29 | 2013-07-16 | Cirrus Logic, Inc. | LED lighting system with accurate current control |
US8179110B2 (en) | 2008-09-30 | 2012-05-15 | Cirrus Logic Inc. | Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation |
US8222872B1 (en) | 2008-09-30 | 2012-07-17 | Cirrus Logic, Inc. | Switching power converter with selectable mode auxiliary power supply |
US8829811B2 (en) * | 2008-11-18 | 2014-09-09 | Cypress Semiconductor Corporation | Compensation method and circuit for line rejection enhancement |
US8922189B2 (en) * | 2008-11-18 | 2014-12-30 | Texas Instruments Incorporated | Controlled on-time buck PFC |
EP2371052A1 (en) * | 2008-12-01 | 2011-10-05 | Koninklijke Philips Electronics N.V. | Emi reduction circuit for active pfc converter |
US8288954B2 (en) | 2008-12-07 | 2012-10-16 | Cirrus Logic, Inc. | Primary-side based control of secondary-side current for a transformer |
US8508150B2 (en) * | 2008-12-12 | 2013-08-13 | O2Micro, Inc. | Controllers, systems and methods for controlling dimming of light sources |
CN102014540B (zh) | 2010-03-04 | 2011-12-28 | 凹凸电子(武汉)有限公司 | 驱动电路及控制光源的电力的控制器 |
US9232591B2 (en) | 2008-12-12 | 2016-01-05 | O2Micro Inc. | Circuits and methods for driving light sources |
US8044608B2 (en) | 2008-12-12 | 2011-10-25 | O2Micro, Inc | Driving circuit with dimming controller for driving light sources |
US8362707B2 (en) | 2008-12-12 | 2013-01-29 | Cirrus Logic, Inc. | Light emitting diode based lighting system with time division ambient light feedback response |
US9030122B2 (en) | 2008-12-12 | 2015-05-12 | O2Micro, Inc. | Circuits and methods for driving LED light sources |
US8330388B2 (en) * | 2008-12-12 | 2012-12-11 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8339067B2 (en) * | 2008-12-12 | 2012-12-25 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8299722B2 (en) | 2008-12-12 | 2012-10-30 | Cirrus Logic, Inc. | Time division light output sensing and brightness adjustment for different spectra of light emitting diodes |
US8076867B2 (en) | 2008-12-12 | 2011-12-13 | O2Micro, Inc. | Driving circuit with continuous dimming function for driving light sources |
US8378588B2 (en) | 2008-12-12 | 2013-02-19 | O2Micro Inc | Circuits and methods for driving light sources |
US9386653B2 (en) | 2008-12-12 | 2016-07-05 | O2Micro Inc | Circuits and methods for driving light sources |
US9253843B2 (en) | 2008-12-12 | 2016-02-02 | 02Micro Inc | Driving circuit with dimming controller for driving light sources |
US7994863B2 (en) | 2008-12-31 | 2011-08-09 | Cirrus Logic, Inc. | Electronic system having common mode voltage range enhancement |
CN102272686B (zh) * | 2009-01-07 | 2015-04-01 | 宝威电源意大利股份公司 | 从可再生能源提取电功率的方法和系统 |
US20100171481A1 (en) * | 2009-01-08 | 2010-07-08 | Liu da-yi | Digital power control device |
US8553431B2 (en) * | 2009-02-03 | 2013-10-08 | Iwatt Inc. | Switching power converter with load impedance detection |
US8203287B2 (en) * | 2009-02-24 | 2012-06-19 | Richard Landry Gray | Pulse width modulation control device |
US8237419B2 (en) * | 2009-02-27 | 2012-08-07 | Schneider Electric USA, Inc. | Microcontroller operated current limited switching power supply for circuit protective devices |
US9006992B2 (en) * | 2009-04-11 | 2015-04-14 | Innosys, Inc. | Low current thyristor-based dimming |
KR101670994B1 (ko) * | 2009-04-27 | 2016-11-01 | 페어차일드코리아반도체 주식회사 | 역률 보상 회로 및 역률 보상 회로의 구동 방법 |
US8482223B2 (en) | 2009-04-30 | 2013-07-09 | Cirrus Logic, Inc. | Calibration of lamps |
DE102009003852B4 (de) * | 2009-04-30 | 2013-05-16 | Lear Corporation Gmbh | Gleichspannungswandler |
CN101888734B (zh) * | 2009-05-13 | 2014-07-16 | 通用电气公司 | 带升/降压功率因数校正dc-dc转换器的电子镇流器 |
US8228046B2 (en) * | 2009-06-16 | 2012-07-24 | American Power Conversion Corporation | Apparatus and method for operating an uninterruptible power supply |
US8729729B2 (en) * | 2009-06-18 | 2014-05-20 | Mikhail Fridberg | Method and apparatus for driving low-power loads from AC sources |
US8963535B1 (en) | 2009-06-30 | 2015-02-24 | Cirrus Logic, Inc. | Switch controlled current sensing using a hall effect sensor |
US8198874B2 (en) * | 2009-06-30 | 2012-06-12 | Cirrus Logic, Inc. | Switching power converter with current sensing transformer auxiliary power supply |
US20100332857A1 (en) * | 2009-06-30 | 2010-12-30 | Vogman Viktor D | Reducing power losses in a redundant power supply system |
US8212493B2 (en) * | 2009-06-30 | 2012-07-03 | Cirrus Logic, Inc. | Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter |
US8248145B2 (en) | 2009-06-30 | 2012-08-21 | Cirrus Logic, Inc. | Cascode configured switching using at least one low breakdown voltage internal, integrated circuit switch to control at least one high breakdown voltage external switch |
CN101938869B (zh) * | 2009-06-30 | 2012-12-26 | 辉芒微电子(深圳)有限公司 | 交流系统中的直流控制装置 |
TWI489903B (zh) * | 2009-07-09 | 2015-06-21 | Light emitting diode lighting device and its current control method | |
US9112452B1 (en) | 2009-07-14 | 2015-08-18 | Rf Micro Devices, Inc. | High-efficiency power supply for a modulated load |
US8698433B2 (en) | 2009-08-10 | 2014-04-15 | Emerson Climate Technologies, Inc. | Controller and method for minimizing phase advance current |
US8264192B2 (en) | 2009-08-10 | 2012-09-11 | Emerson Climate Technologies, Inc. | Controller and method for transitioning between control angles |
US8508166B2 (en) * | 2009-08-10 | 2013-08-13 | Emerson Climate Technologies, Inc. | Power factor correction with variable bus voltage |
US8493014B2 (en) * | 2009-08-10 | 2013-07-23 | Emerson Climate Technologies, Inc. | Controller and method for estimating, managing, and diagnosing motor parameters |
US8476873B2 (en) * | 2009-08-10 | 2013-07-02 | Emerson Climate Technologies, Inc. | System and method for current balancing |
US8395329B2 (en) * | 2009-09-09 | 2013-03-12 | Bel Fuse (Macao Commercial Offshore) | LED ballast power supply having digital controller |
US9155174B2 (en) | 2009-09-30 | 2015-10-06 | Cirrus Logic, Inc. | Phase control dimming compatible lighting systems |
US9178415B1 (en) | 2009-10-15 | 2015-11-03 | Cirrus Logic, Inc. | Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter |
US8487591B1 (en) | 2009-12-31 | 2013-07-16 | Cirrus Logic, Inc. | Power control system with power drop out immunity and uncompromised startup time |
CA2782871C (en) * | 2009-11-02 | 2019-02-12 | Genesys Systems, Llc | Electronic ballast circuit for lamps |
US8654483B2 (en) | 2009-11-09 | 2014-02-18 | Cirrus Logic, Inc. | Power system having voltage-based monitoring for over current protection |
US8248040B2 (en) * | 2009-11-12 | 2012-08-21 | Polar Semiconductor Inc. | Time-limiting mode (TLM) for an interleaved power factor correction (PFC) converter |
JP5170117B2 (ja) * | 2010-01-18 | 2013-03-27 | 株式会社村田製作所 | スイッチング制御回路及びスイッチング電源装置 |
JP4958052B2 (ja) * | 2010-02-24 | 2012-06-20 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 系統電力平準化装置および画像診断システム |
US8638079B2 (en) * | 2010-02-27 | 2014-01-28 | Infineon Technologies Ag | Pulse modulation control in a DC-DC converter circuit |
CN103391006A (zh) | 2012-05-11 | 2013-11-13 | 凹凸电子(武汉)有限公司 | 光源驱动电路、控制电力转换器的控制器及方法 |
US8698419B2 (en) | 2010-03-04 | 2014-04-15 | O2Micro, Inc. | Circuits and methods for driving light sources |
US8456095B2 (en) | 2010-03-19 | 2013-06-04 | Active-Semi, Inc. | Reduced flicker AC LED lamp with separately shortable sections of an LED string |
US8299724B2 (en) * | 2010-03-19 | 2012-10-30 | Active-Semi, Inc. | AC LED lamp involving an LED string having separately shortable sections |
CN101807851B (zh) * | 2010-03-29 | 2012-07-25 | 北京新雷能科技股份有限公司 | 开关电源负载扰动前馈控制电路 |
GB201006395D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006398D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006387D0 (en) * | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006396D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006391D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless permanent-magnet motor |
GB201006390D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006386D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006392D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Controller for a brushless motor |
GB201006397D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of a brushless motor |
GB201006388D0 (en) | 2010-04-16 | 2010-06-02 | Dyson Technology Ltd | Control of brushless motor |
US9099961B2 (en) * | 2010-04-19 | 2015-08-04 | Rf Micro Devices, Inc. | Output impedance compensation of a pseudo-envelope follower power management system |
US9431974B2 (en) | 2010-04-19 | 2016-08-30 | Qorvo Us, Inc. | Pseudo-envelope following feedback delay compensation |
CN102971962B (zh) * | 2010-04-19 | 2016-05-25 | 射频小型装置公司 | 伪包络跟随功率管理系统 |
US8633766B2 (en) | 2010-04-19 | 2014-01-21 | Rf Micro Devices, Inc. | Pseudo-envelope follower power management system with high frequency ripple current compensation |
US8981848B2 (en) | 2010-04-19 | 2015-03-17 | Rf Micro Devices, Inc. | Programmable delay circuitry |
US8269422B2 (en) * | 2010-04-20 | 2012-09-18 | Chien-Chih Kuo | Output controllable frequency modulation electronic ballast |
US20120106216A1 (en) * | 2010-04-29 | 2012-05-03 | Victor Tzinker | Ac-dc converter with unity power factor |
US9173257B2 (en) * | 2010-05-11 | 2015-10-27 | Victor M. CUBIAS | Low voltage LED dimmer with integrated universal switch mode power supply |
EP2388902B1 (en) * | 2010-05-21 | 2013-08-14 | C.R.F. Società Consortile per Azioni | System and method for digital control of a DC/DC power-converter device, in particular for automotive applications |
BRPI1006472B1 (pt) * | 2010-06-04 | 2019-08-20 | Opulent Electronics International Pte Ltd. | Dispositivo para prover corrente elétrica para pelo menos um diodo emissor de luz (led) através de um conversor de energia no modo de comutação e método para prover corrente elétrica para pelo menos um diodo emissor de luz (led) através de um conversor de energia no modo de comutação |
US8417196B2 (en) * | 2010-06-07 | 2013-04-09 | Skyworks Solutions, Inc. | Apparatus and method for directional coupling |
EP2589138B1 (en) | 2010-06-29 | 2021-03-24 | Eaton Intelligent Power Limited | Closed loop control of a cyclo-converter |
TWI414923B (zh) * | 2010-07-07 | 2013-11-11 | Sitronix Technology Corp | Power factor correction circuit |
US8111017B2 (en) | 2010-07-12 | 2012-02-07 | O2Micro, Inc | Circuits and methods for controlling dimming of a light source |
US8467209B2 (en) * | 2010-07-27 | 2013-06-18 | Stmicroelectronics S.R.L. | Control device of a switching power supply |
US10439508B2 (en) | 2010-07-27 | 2019-10-08 | Stmicroelectronics S.R.L. | Control device of a switching power supply |
US8536799B1 (en) | 2010-07-30 | 2013-09-17 | Cirrus Logic, Inc. | Dimmer detection |
WO2012016197A1 (en) | 2010-07-30 | 2012-02-02 | Cirrus Logic, Inc. | Powering high-efficiency lighting devices from a triac-based dimmer |
US8729811B2 (en) | 2010-07-30 | 2014-05-20 | Cirrus Logic, Inc. | Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element |
US8569972B2 (en) * | 2010-08-17 | 2013-10-29 | Cirrus Logic, Inc. | Dimmer output emulation |
US8941316B2 (en) | 2010-08-17 | 2015-01-27 | Cirrus Logic, Inc. | Duty factor probing of a triac-based dimmer |
US8912781B2 (en) | 2010-07-30 | 2014-12-16 | Cirrus Logic, Inc. | Integrated circuit switching power supply controller with selectable buck mode operation |
US8866452B1 (en) | 2010-08-11 | 2014-10-21 | Cirrus Logic, Inc. | Variable minimum input voltage based switching in an electronic power control system |
US9307601B2 (en) | 2010-08-17 | 2016-04-05 | Koninklijke Philips N.V. | Input voltage sensing for a switching power converter and a triac-based dimmer |
CN105703617A (zh) * | 2010-08-18 | 2016-06-22 | 芬斯克斯有限公司 | 多路径功率因数校正的方法及功率变换器 |
JP5079855B2 (ja) * | 2010-08-24 | 2012-11-21 | シャープ株式会社 | Led駆動回路及びこれを用いたled照明灯具 |
EP2609790A2 (en) | 2010-08-24 | 2013-07-03 | Cirrus Logic, Inc. | Multi-mode dimmer interfacing including attach state control |
US9510401B1 (en) | 2010-08-24 | 2016-11-29 | Cirrus Logic, Inc. | Reduced standby power in an electronic power control system |
US9954436B2 (en) | 2010-09-29 | 2018-04-24 | Qorvo Us, Inc. | Single μC-buckboost converter with multiple regulated supply outputs |
US8754625B2 (en) | 2010-09-30 | 2014-06-17 | Intersil Americas Inc. | System and method for converting an AC input voltage to regulated output current |
GB2484289B (en) | 2010-10-04 | 2013-11-20 | Dyson Technology Ltd | Control of an electrical machine |
KR101179327B1 (ko) * | 2010-10-12 | 2012-09-03 | 서울시립대학교 산학협력단 | 역률 개선 회로 |
JP5760169B2 (ja) * | 2010-10-25 | 2015-08-05 | パナソニックIpマネジメント株式会社 | 点灯装置および、これを用いた照明器具 |
CN103262399B (zh) | 2010-11-04 | 2017-02-15 | 皇家飞利浦有限公司 | 用于控制开关功率转换器中的能量消耗的方法和装置 |
EP2636134A2 (en) | 2010-11-04 | 2013-09-11 | Cirrus Logic, Inc. | Switching power converter input voltage approximate zero crossing determination |
WO2012061774A2 (en) | 2010-11-04 | 2012-05-10 | Cirrus Logic, Inc. | Controlled energy dissipation in a switching power converter |
US8552893B1 (en) * | 2010-11-04 | 2013-10-08 | Cirrus Logic, Inc. | Control system using nonlinear delta-sigma modulator with switching period error compensation |
EP2451062B1 (en) * | 2010-11-08 | 2018-10-24 | Nxp B.V. | PFC with multi-channel error feedback |
US8547034B2 (en) | 2010-11-16 | 2013-10-01 | Cirrus Logic, Inc. | Trailing edge dimmer compatibility with dimmer high resistance prediction |
WO2012068260A1 (en) | 2010-11-16 | 2012-05-24 | Rf Micro Devices, Inc. | Digital gain multiplier for envelop tracking systems and corresponding method |
JP5487084B2 (ja) * | 2010-11-19 | 2014-05-07 | 株式会社メガチップス | 電源装置 |
US8541990B2 (en) * | 2010-11-23 | 2013-09-24 | Immense Advance Technology Corp. | Power conversion controller having a novel power factor correction mechanism using line voltage normalization |
US20120139442A1 (en) * | 2010-12-07 | 2012-06-07 | Astec International Limited | Mains Dimmable LED Driver Circuits |
CN103370990B (zh) | 2010-12-16 | 2016-06-15 | 皇家飞利浦有限公司 | 基于开关参数的断续模式-临界导电模式转换 |
US8878389B2 (en) | 2011-01-11 | 2014-11-04 | Schneider Electric It Corporation | Method and apparatus for providing uninterruptible power |
JP2012157220A (ja) * | 2011-01-28 | 2012-08-16 | Sony Corp | 制御装置、制御方法および電源装置 |
CN102364857B (zh) * | 2011-02-01 | 2012-12-12 | 杭州士兰微电子股份有限公司 | 一种原边控制的恒流开关电源控制器及方法 |
US8624760B2 (en) | 2011-02-07 | 2014-01-07 | Rf Micro Devices, Inc. | Apparatuses and methods for rate conversion and fractional delay calculation using a coefficient look up table |
US8942313B2 (en) | 2011-02-07 | 2015-01-27 | Rf Micro Devices, Inc. | Group delay calibration method for power amplifier envelope tracking |
US8450946B1 (en) * | 2011-02-07 | 2013-05-28 | Universal Lighting Technologies, Inc. | Zone addressing circuit for an electronic ballast |
JP5774904B2 (ja) * | 2011-02-08 | 2015-09-09 | ローム株式会社 | 力率改善回路およびその制御回路、それらを用いた電子機器 |
WO2012109536A2 (en) * | 2011-02-10 | 2012-08-16 | Power-One, Inc. | Input current shaping for transition and discontinuous mode power converter |
CN102368662B (zh) * | 2011-03-10 | 2013-11-27 | 杭州士兰微电子股份有限公司 | 电流基准发生电路、恒流开关电源的控制电路及方法 |
WO2012149430A1 (en) * | 2011-04-27 | 2012-11-01 | Todd Shudarek | Combined active and passive harmonic mitigation devices and applications thereof |
US9379667B2 (en) | 2011-05-05 | 2016-06-28 | Rf Micro Devices, Inc. | Multiple power supply input parallel amplifier based envelope tracking |
US9246460B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power management architecture for modulated and constant supply operation |
US9247496B2 (en) | 2011-05-05 | 2016-01-26 | Rf Micro Devices, Inc. | Power loop control based envelope tracking |
US8933642B2 (en) | 2011-05-13 | 2015-01-13 | General Electric Company | Dimmable LED lamp |
CN103748794B (zh) | 2011-05-31 | 2015-09-16 | 射频小型装置公司 | 一种用于测量发射路径的复数增益的方法和设备 |
US9019011B2 (en) | 2011-06-01 | 2015-04-28 | Rf Micro Devices, Inc. | Method of power amplifier calibration for an envelope tracking system |
EP2716135A1 (en) | 2011-06-03 | 2014-04-09 | Cirrus Logic, Inc. | Primary-side control of a switching power converter with feed forward delay compensation |
WO2012177729A1 (en) | 2011-06-20 | 2012-12-27 | Amerlux, Llc | Led driver |
US8760228B2 (en) | 2011-06-24 | 2014-06-24 | Rf Micro Devices, Inc. | Differential power management and power amplifier architecture |
CN103636105B (zh) | 2011-06-30 | 2017-05-10 | 飞利浦照明控股有限公司 | 具有次级侧调光控制的变换器隔离led发光电路 |
US8593075B1 (en) | 2011-06-30 | 2013-11-26 | Cirrus Logic, Inc. | Constant current controller with selectable gain |
JP5811329B2 (ja) * | 2011-07-08 | 2015-11-11 | 東芝ライテック株式会社 | 電源装置 |
US8952710B2 (en) | 2011-07-15 | 2015-02-10 | Rf Micro Devices, Inc. | Pulsed behavior modeling with steady state average conditions |
WO2013012787A2 (en) | 2011-07-15 | 2013-01-24 | Rf Micro Devices, Inc. | Modified switching ripple for envelope tracking system |
TWI460571B (zh) * | 2011-07-19 | 2014-11-11 | Acbel Polytech Inc | Power factor control circuit and its control method |
US9263996B2 (en) | 2011-07-20 | 2016-02-16 | Rf Micro Devices, Inc. | Quasi iso-gain supply voltage function for envelope tracking systems |
US8971065B2 (en) * | 2011-08-04 | 2015-03-03 | Industrial Technology Research Institute | System for providing an alternating current, and control apparatus and method thereof |
CN102946195B (zh) | 2011-08-15 | 2016-04-20 | 美国亚德诺半导体公司 | 开关调节器及其控制方法 |
US8624576B2 (en) | 2011-08-17 | 2014-01-07 | Rf Micro Devices, Inc. | Charge-pump system for providing independent voltages |
US8884464B2 (en) | 2011-08-29 | 2014-11-11 | Schneider Electric It Corporation | Twin boost converter with integrated charger for UPS system |
CN103858338B (zh) | 2011-09-02 | 2016-09-07 | 射频小型装置公司 | 用于包络跟踪的分离vcc和共同vcc功率管理架构 |
US20130057229A1 (en) * | 2011-09-02 | 2013-03-07 | Intersil Americas Inc. | Power factor correction apparatus and method |
KR101288201B1 (ko) * | 2011-09-16 | 2013-07-18 | 삼성전기주식회사 | 역률 보정 회로, 이를 갖는 전원 장치 및 모터 구동 장치 |
US8736246B2 (en) * | 2011-09-22 | 2014-05-27 | Acbel Polytech Inc. | Power factor control circuit and power factor control method |
US9190899B2 (en) * | 2011-09-28 | 2015-11-17 | General Electric Company | Power factor correction (PFC) circuit configured to control high pulse load current and inrush current |
US8957728B2 (en) | 2011-10-06 | 2015-02-17 | Rf Micro Devices, Inc. | Combined filter and transconductance amplifier |
CN103959189B (zh) | 2011-10-26 | 2015-12-23 | 射频小型装置公司 | 基于电感的并行放大器相位补偿 |
US9024688B2 (en) | 2011-10-26 | 2015-05-05 | Rf Micro Devices, Inc. | Dual parallel amplifier based DC-DC converter |
WO2013063364A1 (en) | 2011-10-26 | 2013-05-02 | Rf Micro Devices, Inc. | Average frequency control of switcher for envelope tracking |
US9484797B2 (en) | 2011-10-26 | 2016-11-01 | Qorvo Us, Inc. | RF switching converter with ripple correction |
DE102011085547B4 (de) * | 2011-11-02 | 2021-07-22 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur Korrektur eines Sensorsignals |
EP2774014A4 (en) * | 2011-11-04 | 2015-08-26 | Zbb Energy Corp | SYSTEM AND METHOD FOR ENERGY CONVERSION FOR RENEWABLE ENERGY SOURCES |
SG189603A1 (en) * | 2011-11-04 | 2013-05-31 | Opulent Electronics Internat Pte Ltd | System for driving a plurality of high powered led units |
US8829869B2 (en) * | 2011-11-08 | 2014-09-09 | Lincoln Global, Inc. | Dynamic power factor correction and dynamic control for converter in power supply |
TWI484739B (zh) * | 2011-11-11 | 2015-05-11 | Richtek Technology Corp | 主動式功率因數校正電路及相關的控制器 |
US9065330B1 (en) * | 2011-11-15 | 2015-06-23 | Marvell International Ltd. | Method and apparatus for controlling TRIAC dimmable device |
US9250643B2 (en) | 2011-11-30 | 2016-02-02 | Rf Micro Devices, Inc. | Using a switching signal delay to reduce noise from a switching power supply |
US9515621B2 (en) | 2011-11-30 | 2016-12-06 | Qorvo Us, Inc. | Multimode RF amplifier system |
US8975959B2 (en) | 2011-11-30 | 2015-03-10 | Rf Micro Devices, Inc. | Monotonic conversion of RF power amplifier calibration data |
US9280163B2 (en) | 2011-12-01 | 2016-03-08 | Rf Micro Devices, Inc. | Average power tracking controller |
US9256234B2 (en) | 2011-12-01 | 2016-02-09 | Rf Micro Devices, Inc. | Voltage offset loop for a switching controller |
US8947161B2 (en) | 2011-12-01 | 2015-02-03 | Rf Micro Devices, Inc. | Linear amplifier power supply modulation for envelope tracking |
WO2013082384A1 (en) | 2011-12-01 | 2013-06-06 | Rf Micro Devices, Inc. | Rf power converter |
US9041365B2 (en) | 2011-12-01 | 2015-05-26 | Rf Micro Devices, Inc. | Multiple mode RF power converter |
US9494962B2 (en) | 2011-12-02 | 2016-11-15 | Rf Micro Devices, Inc. | Phase reconfigurable switching power supply |
US8823346B2 (en) * | 2011-12-09 | 2014-09-02 | Intersil Americas LLC | System and method of feed forward for boost converters with improved power factor and reduced energy storage |
US10117295B2 (en) | 2013-01-24 | 2018-10-30 | Cree, Inc. | LED lighting apparatus for use with AC-output lighting ballasts |
CN102497705B (zh) * | 2011-12-14 | 2014-04-02 | 西安华雷船舶实业有限公司 | 照明灯具节能控制方法及其节能电路 |
EP2792060A2 (en) | 2011-12-14 | 2014-10-22 | Cirrus Logic, Inc. | Adaptive current control timing and responsive current control for interfacing with a dimmer |
US9813036B2 (en) | 2011-12-16 | 2017-11-07 | Qorvo Us, Inc. | Dynamic loadline power amplifier with baseband linearization |
CN104137105B (zh) | 2011-12-22 | 2017-07-11 | 施耐德电气It公司 | 关于瞬时事件对数据中心中的温度的影响分析 |
AU2011383606A1 (en) | 2011-12-22 | 2014-07-17 | Schneider Electric It Corporation | System and method for prediction of temperature values in an electronics system |
US9496782B2 (en) | 2011-12-22 | 2016-11-15 | B/E Aerospace, Inc. | Digitally-controlled power factor correction circuits, methods and articles of manufacture |
US9298198B2 (en) | 2011-12-28 | 2016-03-29 | Rf Micro Devices, Inc. | Noise reduction for envelope tracking |
CA2850554C (en) * | 2011-12-31 | 2019-04-02 | Broad-Ocean Motor Ev Co., Ltd | Narrow pulse filter circuit with automatic compensation and motor controller applying same |
TWI542127B (zh) | 2012-01-03 | 2016-07-11 | 財團法人工業技術研究院 | 降壓型主動式功因修正裝置 |
WO2013102780A1 (en) * | 2012-01-05 | 2013-07-11 | American Power Conversion Corporation | Power converter with digital current control circuit |
US8847510B2 (en) * | 2012-01-20 | 2014-09-30 | Luxul Technology Incorporation | LED AC driving circuit capable of adjusting operating voltage |
TW201332396A (zh) * | 2012-01-20 | 2013-08-01 | Phihong Technology Co Ltd | 用以驅動發光二極體之電源供應電路 |
ITMI20120088A1 (it) | 2012-01-26 | 2013-07-27 | Dora Spa | Dispositivo di controllo per un alimentatore a commutazione. |
ITMI20120089A1 (it) * | 2012-01-26 | 2013-07-27 | Dora Spa | Dispositivo di controllo per un alimentatore a commutazione. |
US9356534B1 (en) * | 2012-01-27 | 2016-05-31 | Marvell International Ltd. | Method and apparatus for turning on a lighting device |
US8937818B2 (en) * | 2012-02-03 | 2015-01-20 | Sheikh Mohammad Ahsanuzzaman | Low-volume programmable-output PFC rectifier with dynamic efficiency and transient response optimization |
WO2013126836A1 (en) | 2012-02-22 | 2013-08-29 | Cirrus Logic, Inc. | Mixed load current compensation for led lighting |
CN102714464B (zh) * | 2012-02-29 | 2014-04-02 | 深圳市核达中远通电源技术有限公司 | 一种多输入直流变换器以及一种pfc电路 |
JP2013186944A (ja) | 2012-03-05 | 2013-09-19 | Toshiba Lighting & Technology Corp | 照明用電源及び照明器具 |
US9155139B2 (en) | 2012-03-09 | 2015-10-06 | Rockwell Automation Technologies, Inc. | LED driver circuits and methods |
US8488352B1 (en) * | 2012-03-27 | 2013-07-16 | Chicony Power Technology Co., Ltd. | Method for varying power factor |
TWI489743B (zh) * | 2012-03-28 | 2015-06-21 | 大同股份有限公司 | 電源取樣裝置及其取樣方法 |
DE102012007479A1 (de) * | 2012-04-13 | 2013-10-17 | Tridonic Gmbh & Co. Kg | Verfahren zum Steuern einer Leistungsfaktorkorrekturschaltung, Leistungsfaktorkorrekturschaltung und Betriebsgerät für ein Leuchtmittel |
US9634593B2 (en) | 2012-04-26 | 2017-04-25 | Emerson Climate Technologies, Inc. | System and method for permanent magnet motor control |
RU2525837C2 (ru) * | 2012-04-28 | 2014-08-20 | Закрытое акционерное общество "Связь инжиниринг" | Способ и система управления безмостовым корректором коэффициента мощности с помощью цифрового сигнального процессора |
US8848402B2 (en) * | 2012-05-25 | 2014-09-30 | Chicony Power Technology Co., Ltd. | Power factor correction apparatus |
US8981839B2 (en) | 2012-06-11 | 2015-03-17 | Rf Micro Devices, Inc. | Power source multiplexer |
JP2014011925A (ja) * | 2012-07-02 | 2014-01-20 | Omron Automotive Electronics Co Ltd | 充電装置 |
CN103532412A (zh) * | 2012-07-05 | 2014-01-22 | 台达电子工业股份有限公司 | 一种功率变换器的反馈控制电路及功率变换器系统 |
US9520794B2 (en) | 2012-07-25 | 2016-12-13 | Philips Lighting Holding B.V | Acceleration of output energy provision for a load during start-up of a switching power converter |
CN104662792B (zh) | 2012-07-26 | 2017-08-08 | Qorvo美国公司 | 用于包络跟踪的可编程rf陷波滤波器 |
EP2883302B1 (en) | 2012-08-10 | 2020-09-30 | Emerson Climate Technologies, Inc. | Motor drive control using pulse-width modulation pulse skipping |
US9184661B2 (en) | 2012-08-27 | 2015-11-10 | Cirrus Logic, Inc. | Power conversion with controlled capacitance charging including attach state control |
DE102012108011A1 (de) * | 2012-08-30 | 2014-03-06 | Infineon Technologies Austria Ag | Schaltkreis zum Ansteuern eines Schalters in einem Schaltwandler |
US9131571B2 (en) | 2012-09-14 | 2015-09-08 | Cree, Inc. | Solid-state lighting apparatus and methods using energy storage with segment control |
US9225231B2 (en) | 2012-09-14 | 2015-12-29 | Rf Micro Devices, Inc. | Open loop ripple cancellation circuit in a DC-DC converter |
TW201415780A (zh) * | 2012-10-03 | 2014-04-16 | Inno Tech Co Ltd | 同步整流升降壓轉換器 |
US9197256B2 (en) | 2012-10-08 | 2015-11-24 | Rf Micro Devices, Inc. | Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal |
US9141123B2 (en) * | 2012-10-16 | 2015-09-22 | Volterra Semiconductor LLC | Maximum power point tracking controllers and associated systems and methods |
WO2014062902A1 (en) | 2012-10-18 | 2014-04-24 | Rf Micro Devices, Inc | Transitioning from envelope tracking to average power tracking |
US9484805B2 (en) * | 2012-10-31 | 2016-11-01 | Cree, Inc. | Dual mode power supply controller with current regulation |
US9509215B2 (en) | 2012-10-31 | 2016-11-29 | Cree, Inc. | Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits |
US9203307B2 (en) | 2012-10-31 | 2015-12-01 | Cree, Inc. | Power converter with bias voltage regulation circuit |
KR101321236B1 (ko) * | 2012-11-01 | 2013-10-28 | 명지대학교 산학협력단 | Pfc 컨버터의 출력전압 리플 보상 장치 및 이를 이용한 전기 차량용 배터리 충전 장치 |
US9627975B2 (en) | 2012-11-16 | 2017-04-18 | Qorvo Us, Inc. | Modulated power supply system and method with automatic transition between buck and boost modes |
CN102946254B (zh) * | 2012-12-13 | 2015-05-27 | 成都芯源系统有限公司 | 多相开关变换器的数字控制器及数字控制方法 |
KR101367954B1 (ko) * | 2012-12-21 | 2014-02-26 | 삼성전기주식회사 | 스위치 모드 전원 공급 장치 및 이의 스위칭 제어 회로 |
KR101422959B1 (ko) * | 2012-12-21 | 2014-08-13 | 삼성전기주식회사 | 역률 보정 장치 및 전원 공급 장치 |
EP2936688B1 (en) * | 2012-12-21 | 2017-05-03 | Teledyne Dalsa B.V. | Sigma-delta analog-to-digital converter |
US9413251B2 (en) * | 2013-01-15 | 2016-08-09 | Rohm Co., Ltd. | Power delivery device, AC adapter, electronic apparatus and power delivery system, having variable function of output voltage value and available output current capacity |
US10045406B2 (en) * | 2013-01-24 | 2018-08-07 | Cree, Inc. | Solid-state lighting apparatus for use with fluorescent ballasts |
US9929696B2 (en) | 2013-01-24 | 2018-03-27 | Qorvo Us, Inc. | Communications based adjustments of an offset capacitive voltage |
US10104723B2 (en) | 2013-01-24 | 2018-10-16 | Cree, Inc. | Solid-state lighting apparatus with filament imitation for use with florescent ballasts |
US9496844B1 (en) | 2013-01-25 | 2016-11-15 | Koninklijke Philips N.V. | Variable bandwidth filter for dimmer phase angle measurements |
US9059793B2 (en) * | 2013-01-28 | 2015-06-16 | Qualcomm Incorporated | Noise shaping for switching circuitry |
US9178472B2 (en) | 2013-02-08 | 2015-11-03 | Rf Micro Devices, Inc. | Bi-directional power supply signal based linear amplifier |
JP6088851B2 (ja) * | 2013-02-25 | 2017-03-01 | 株式会社東芝 | インバータ制御回路およびインバータ回路 |
TWI489243B (zh) * | 2013-03-05 | 2015-06-21 | Richtek Technology Corp | Pfc轉換器的電源管理ic、控制方法以及訊號峰值偵測器及方法 |
WO2014138629A1 (en) | 2013-03-07 | 2014-09-12 | Cirrus Logic, Inc. | Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load |
US9166485B2 (en) | 2013-03-11 | 2015-10-20 | Cirrus Logic, Inc. | Quantization error reduction in constant output current control drivers |
EP2974540B1 (en) * | 2013-03-11 | 2019-08-07 | Signify Holding B.V. | Reduction of supply current variations using compensation current control |
US9661697B2 (en) * | 2013-03-14 | 2017-05-23 | Laurence P. Sadwick | Digital dimmable driver |
US10187934B2 (en) | 2013-03-14 | 2019-01-22 | Philips Lighting Holding B.V. | Controlled electronic system power dissipation via an auxiliary-power dissipation circuit |
US9197162B2 (en) | 2013-03-14 | 2015-11-24 | Rf Micro Devices, Inc. | Envelope tracking power supply voltage dynamic range reduction |
US9203353B2 (en) | 2013-03-14 | 2015-12-01 | Rf Micro Devices, Inc. | Noise conversion gain limited RF power amplifier |
US9282598B2 (en) | 2013-03-15 | 2016-03-08 | Koninklijke Philips N.V. | System and method for learning dimmer characteristics |
US9142657B2 (en) * | 2013-03-15 | 2015-09-22 | David Schie | Gated thyristor power device |
US9391497B2 (en) | 2013-04-03 | 2016-07-12 | Trane International Inc. | Electric motors having modular construction, power sharing and performance configurability |
US9853539B1 (en) | 2013-04-08 | 2017-12-26 | Cirrus Logic, Inc. | Systems and methods for measuring inductor current in a switching DC-to-DC converter |
US9461537B1 (en) | 2013-04-15 | 2016-10-04 | Cirrus Logic, Inc. | Systems and methods for measuring inductor current in a switching DC-to-DC converter |
US9479118B2 (en) | 2013-04-16 | 2016-10-25 | Rf Micro Devices, Inc. | Dual instantaneous envelope tracking |
TWI462442B (zh) * | 2013-04-26 | 2014-11-21 | Richtek Technology Corp | 電源轉換電路的控制電路及相關的控制方法 |
CN103236779B (zh) * | 2013-04-27 | 2015-11-18 | 四川长虹电器股份有限公司 | 一种晶体管控制方法、装置及空调系统 |
US9214855B2 (en) | 2013-05-03 | 2015-12-15 | Cooper Technologies Company | Active power factor correction circuit for a constant current power converter |
US9190901B2 (en) | 2013-05-03 | 2015-11-17 | Cooper Technologies Company | Bridgeless boost power factor correction circuit for constant current input |
US9000736B2 (en) * | 2013-05-03 | 2015-04-07 | Cooper Technologies Company | Power factor correction algorithm for arbitrary input waveform |
US9548794B2 (en) | 2013-05-03 | 2017-01-17 | Cooper Technologies Company | Power factor correction for constant current input with power line communication |
CN104143901B (zh) * | 2013-05-06 | 2017-03-15 | 立锜科技股份有限公司 | 电源转换器的控制电路及相关的控制方法 |
WO2014186776A1 (en) | 2013-05-17 | 2014-11-20 | Cirrus Logic, Inc. | Charge pump-based circuitry for bjt power supply |
WO2014186765A1 (en) | 2013-05-17 | 2014-11-20 | Cirrus Logic, Inc. | Single pin control of bipolar junction transistor (bjt)-based power stage |
TWI506393B (zh) * | 2013-05-17 | 2015-11-01 | Macroblock Inc | 適用於可變負載之負載能量控制電路以及利用此負載能量控制電路之可變負載的負載能量控制方法 |
DE112014002478B4 (de) * | 2013-06-21 | 2023-12-07 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Vorrichtung und Verfahren zum Laden einer Fahrzeugbatterie aus dem Stromnetz |
CN103390995B (zh) * | 2013-07-18 | 2015-09-30 | 矽力杰半导体技术(杭州)有限公司 | 一种pfc电路 |
WO2015017317A2 (en) | 2013-07-29 | 2015-02-05 | Cirrus Logic, Inc. | Two terminal drive of bipolar junction transistor (bjt) for switch-mode operation of a light emitting diode (led)-based bulb |
US9504106B2 (en) | 2013-07-29 | 2016-11-22 | Cirrus Logic, Inc. | Compensating for a reverse recovery time period of a bipolar junction transistor (BJT) in switch-mode operation of a light-emitting diode (LED)-based bulb |
US9374005B2 (en) | 2013-08-13 | 2016-06-21 | Rf Micro Devices, Inc. | Expanded range DC-DC converter |
US10707038B2 (en) | 2013-09-06 | 2020-07-07 | Texas Instruments Incorporated | System and method for energy monitoring |
TWI508423B (zh) * | 2013-09-06 | 2015-11-11 | Richtek Technology Corp | Power conversion device |
US9728974B2 (en) * | 2013-10-10 | 2017-08-08 | Tmeic Corporation | Renewable energy site reactive power control |
WO2015075508A1 (en) | 2013-11-25 | 2015-05-28 | Freescale Semiconductor, Inc. | A flyback switching mode power supply with voltage control and a method thereof |
US9716466B2 (en) * | 2014-01-23 | 2017-07-25 | Lg Electronics Inc. | Power conversion apparatus, photovoltaic module and communication device and photovoltaic system including the same |
JP6020489B2 (ja) * | 2014-02-27 | 2016-11-02 | トヨタ自動車株式会社 | 昇圧コンバータ及びその制御方法 |
KR102187845B1 (ko) | 2014-02-28 | 2020-12-07 | 주식회사 실리콘웍스 | 스위치 장치 및 그 구동 방법 |
US9621062B2 (en) | 2014-03-07 | 2017-04-11 | Philips Lighting Holding B.V. | Dimmer output emulation with non-zero glue voltage |
EP2919374B1 (en) * | 2014-03-12 | 2018-05-02 | DET International Holding Limited | Duty-ratio controller |
DE102014205520A1 (de) * | 2014-03-25 | 2015-10-01 | Tridonic Gmbh & Co Kg | Leistungsfaktorkorrekturschaltung (PFC) mit THD-Korrektur |
US20150288275A1 (en) * | 2014-04-08 | 2015-10-08 | Ionel Jitaru | Input Current Distortion for Minimization of Bulk Capacitor |
US9215772B2 (en) | 2014-04-17 | 2015-12-15 | Philips International B.V. | Systems and methods for minimizing power dissipation in a low-power lamp coupled to a trailing-edge dimmer |
US9214862B2 (en) | 2014-04-17 | 2015-12-15 | Philips International, B.V. | Systems and methods for valley switching in a switching power converter |
US10126870B2 (en) * | 2014-06-03 | 2018-11-13 | Synaptics Incorporated | Techniques for mitigating noise in capacitive sensing devices |
CN105207552B (zh) * | 2014-06-06 | 2018-02-09 | 台达电子工业股份有限公司 | 多相发电机电源转换系统及其操作方法 |
US10177646B2 (en) * | 2014-06-13 | 2019-01-08 | City University Of Hong Kong | Power factor correction circuit for a power electronic system |
US9385601B2 (en) * | 2014-06-30 | 2016-07-05 | Monolithic Power Systems Co., Ltd. | SMPS with output ripple reduction control and method thereof |
US9614476B2 (en) | 2014-07-01 | 2017-04-04 | Qorvo Us, Inc. | Group delay calibration of RF envelope tracking |
DE102014214490A1 (de) * | 2014-07-24 | 2016-01-28 | Robert Bosch Gmbh | Schaltwandler und Verfahren zum Wandeln einer Eingangsspannung in eine Ausgangsspannung |
FR3024304B1 (fr) * | 2014-07-25 | 2018-03-02 | Somfy Sas | Procede et unite de controle et/ou de protection d’un actionneur d’un equipement mobile d’un batiment |
CN105450052B (zh) * | 2014-08-20 | 2018-03-30 | 台达电子工业股份有限公司 | 变换器、控制器与控制方法 |
US20160065046A1 (en) * | 2014-08-29 | 2016-03-03 | John Alan GIBSON | Method and circuits for diminishing dc offset |
CN107078643B (zh) * | 2014-10-11 | 2019-12-31 | 德克萨斯仪器股份有限公司 | 转换器的预偏置启动 |
JP2016086616A (ja) * | 2014-10-29 | 2016-05-19 | 株式会社アイケイエス | 電力変換器 |
US9325236B1 (en) | 2014-11-12 | 2016-04-26 | Koninklijke Philips N.V. | Controlling power factor in a switching power converter operating in discontinuous conduction mode |
US9504118B2 (en) | 2015-02-17 | 2016-11-22 | Cirrus Logic, Inc. | Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage |
JP6445348B2 (ja) * | 2015-02-24 | 2018-12-26 | ルネサスエレクトロニクス株式会社 | 半導体装置及びその制御方法 |
US9609701B2 (en) | 2015-02-27 | 2017-03-28 | Cirrus Logic, Inc. | Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters |
US9603206B2 (en) | 2015-02-27 | 2017-03-21 | Cirrus Logic, Inc. | Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage |
US9722487B2 (en) * | 2015-05-11 | 2017-08-01 | Infineon Technologies Ag | Hysteresis controllers for power factor correction in AC/DC power converters |
EP3298683A1 (en) * | 2015-05-21 | 2018-03-28 | Telefonaktiebolaget LM Ericsson (publ) | Switched mode power supply compensation loop |
CN107836137B (zh) * | 2015-06-12 | 2019-11-12 | 贝盖利股份有限公司 | 用于led照明装置的多功能电子电源 |
US9912297B2 (en) | 2015-07-01 | 2018-03-06 | Qorvo Us, Inc. | Envelope tracking power converter circuitry |
US9941844B2 (en) | 2015-07-01 | 2018-04-10 | Qorvo Us, Inc. | Dual-mode envelope tracking power converter circuitry |
EP3139484B1 (en) * | 2015-09-03 | 2018-05-23 | Nxp B.V. | A mains power converter, a controller therefor, and methods of operating the same |
US10164520B2 (en) | 2015-09-03 | 2018-12-25 | Aerojet Rocketdyne | Short circuit protection for switching power converters |
JP2017070004A (ja) * | 2015-09-28 | 2017-04-06 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
US9806610B2 (en) * | 2015-09-30 | 2017-10-31 | Texas Instruments Incorporated | Noise-shaped power converters |
CN105406697B (zh) * | 2015-12-22 | 2018-12-25 | 矽力杰半导体技术(杭州)有限公司 | 纹波抑制电路、方法及应用其的led灯 |
TWI595342B (zh) * | 2016-03-22 | 2017-08-11 | 台達電子工業股份有限公司 | 控制模組、切換式電源供應裝置及切換式電源供應裝置之峰值電流模式控制方法 |
US10530372B1 (en) | 2016-03-25 | 2020-01-07 | MY Tech, LLC | Systems and methods for digital synthesis of output signals using resonators |
US10020818B1 (en) | 2016-03-25 | 2018-07-10 | MY Tech, LLC | Systems and methods for fast delta sigma modulation using parallel path feedback loops |
US10656026B2 (en) | 2016-04-15 | 2020-05-19 | Emerson Climate Technologies, Inc. | Temperature sensing circuit for transmitting data across isolation barrier |
US10277115B2 (en) | 2016-04-15 | 2019-04-30 | Emerson Climate Technologies, Inc. | Filtering systems and methods for voltage control |
US9933842B2 (en) | 2016-04-15 | 2018-04-03 | Emerson Climate Technologies, Inc. | Microcontroller architecture for power factor correction converter |
US11387729B2 (en) | 2016-04-15 | 2022-07-12 | Emerson Climate Technologies, Inc. | Buck-converter-based drive circuits for driving motors of compressors and condenser fans |
US10284132B2 (en) | 2016-04-15 | 2019-05-07 | Emerson Climate Technologies, Inc. | Driver for high-frequency switching voltage converters |
US10763740B2 (en) | 2016-04-15 | 2020-09-01 | Emerson Climate Technologies, Inc. | Switch off time control systems and methods |
US10305373B2 (en) | 2016-04-15 | 2019-05-28 | Emerson Climate Technologies, Inc. | Input reference signal generation systems and methods |
US9973147B2 (en) | 2016-05-10 | 2018-05-15 | Qorvo Us, Inc. | Envelope tracking power management circuit |
EP3466204B1 (en) * | 2016-05-30 | 2021-07-07 | Signify Holding B.V. | Switched mode power supply identification |
TWI601366B (zh) * | 2016-06-03 | 2017-10-01 | 光寶電子(廣州)有限公司 | 電源供應器及電壓校正方法 |
US10024898B2 (en) * | 2016-06-24 | 2018-07-17 | General Electric Company | System and method for determining inductance in a power converter |
US10056828B2 (en) * | 2016-07-11 | 2018-08-21 | Infineon Technologies Austria Ag | System and method for controlling current in a switching regulator |
CN106253661B (zh) * | 2016-08-05 | 2018-12-28 | 矽力杰半导体技术(杭州)有限公司 | 控制电路、控制方法及应用其的功率变换器 |
US11616435B2 (en) * | 2016-08-05 | 2023-03-28 | Rohm Co., Ltd. | Power supply controller with a load line compensator |
US10131245B2 (en) * | 2016-08-16 | 2018-11-20 | Ford Global Technologies, Llc | Electrified vehicle DC power conversion with distributed control |
US10608440B2 (en) | 2016-08-31 | 2020-03-31 | Te Connectivity Corporation | Control circuit configured to determine when a direct current component in an alternating current power line passes a designated threshold |
US20180069471A1 (en) * | 2016-09-06 | 2018-03-08 | Texas Instruments Incorporated | Optimizing the efficiency of a boost pre-converter while maintaining input power factor |
US10333416B2 (en) * | 2016-09-30 | 2019-06-25 | Semiconductor Components Industries, Llc | System and method for controlling voltage control loop in power converter |
WO2018094380A1 (en) | 2016-11-21 | 2018-05-24 | MY Tech, LLC | High efficiency power amplifier architectures for rf applications |
KR101866095B1 (ko) * | 2016-12-09 | 2018-06-11 | 현대오트론 주식회사 | Pwm 스위칭 주파수 제어 장치 및 방법 |
DE202016007619U1 (de) * | 2016-12-15 | 2018-03-16 | Tridonic Gmbh & Co. Kg | Schaltregler und Betriebsgerät zum Betreiben von Leuchtmitteln |
WO2018110787A1 (ko) * | 2016-12-15 | 2018-06-21 | 서울과학기술대학교 산학협력단 | 단일단 인터리브드 소프트 스위칭 컨버터 |
US10080082B2 (en) * | 2017-02-16 | 2018-09-18 | Akustica, Inc. | Microphone system having high acoustical overload point |
IT201700031159A1 (it) * | 2017-03-21 | 2018-09-21 | St Microelectronics Srl | Unita' di controllo di un convertitore in commutazione operante in modalita' di conduzione continua e a controllo di corrente di picco |
JP2019012906A (ja) * | 2017-06-29 | 2019-01-24 | オムロン株式会社 | 電気機器 |
SG10201706597YA (en) * | 2017-08-11 | 2019-03-28 | Opulent Electronics Int Pte Ltd | Device and method for providing an electrical current to an electrical load |
US10050443B1 (en) | 2017-08-17 | 2018-08-14 | Infineon Technologies Austria Ag | PFC controller add-on circuit to stabilize THDi performance |
JP6946878B2 (ja) * | 2017-09-13 | 2021-10-13 | 富士電機株式会社 | 力率改善回路及びこれを使用したスイッチング電源装置 |
US10033400B1 (en) | 2017-10-18 | 2018-07-24 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
US9985646B1 (en) | 2017-10-18 | 2018-05-29 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
US10381968B2 (en) | 2017-12-05 | 2019-08-13 | Otis Elevator Company | Converter pulse width modulation strategies for three phase regenerative drives |
US10931198B2 (en) * | 2017-12-08 | 2021-02-23 | Texas Instruments Incorporated | Buck-boost power converter controller |
US10128744B1 (en) * | 2017-12-13 | 2018-11-13 | Texas Instruments Incorporated | Single and multi-phase DC-DC converter mode control |
US10476437B2 (en) | 2018-03-15 | 2019-11-12 | Qorvo Us, Inc. | Multimode voltage tracker circuit |
US10250118B1 (en) * | 2018-04-16 | 2019-04-02 | Nxp B.V. | PWM mode boost switching regulator with programmable pulse skip mode |
US10158296B1 (en) | 2018-04-18 | 2018-12-18 | Nxp B.V. | Method and system for saturation control in a flyback switched-mode power supply (SMPS) |
DE202018102178U1 (de) * | 2018-04-19 | 2019-07-22 | Tridonic Gmbh & Co Kg | LED-Konverteranordnung mit linearisierter Regelstrecke |
US11047946B2 (en) * | 2018-05-08 | 2021-06-29 | Qualcomm Incorporated | Differential current sensing with robust path, voltage offset removal and process, voltage, temperature (PVT) tolerance |
KR101982209B1 (ko) * | 2018-06-14 | 2019-05-24 | 고려대학교 산학협력단 | 연속 시간 델타-시그마 변조기 |
TWI685183B (zh) * | 2018-07-04 | 2020-02-11 | 群光電能科技股份有限公司 | 混模式升壓型功因校正轉換器 |
US10659029B2 (en) * | 2018-10-14 | 2020-05-19 | Cirrus Logic, Inc. | Chopped triangular wave PWM quantizer |
CN109245575B (zh) * | 2018-10-23 | 2021-02-12 | 中国船舶重工集团公司第七二三研究所 | 一种vienna整流器随机采样方法 |
US10847989B2 (en) * | 2018-11-28 | 2020-11-24 | Robert Bosch Gmbh | Consumer arrangement and operating method |
CN113056866A (zh) * | 2018-11-28 | 2021-06-29 | 斯兰纳亚洲有限公司 | 数字补偿的电流感测保护 |
US11632054B2 (en) | 2019-04-24 | 2023-04-18 | Power Integrations, Inc. | Mode operation detection for control of a power converter with an active clamp switch |
JP7378495B2 (ja) | 2019-04-24 | 2023-11-13 | パワー・インテグレーションズ・インコーポレーテッド | 能動非放散クランプ回路を備える電力コンバーターおよびそれぞれの制御装置 |
KR102125747B1 (ko) * | 2019-05-13 | 2020-06-23 | 고려대학교 산학협력단 | 용량성 결합 연속 시간 델타시그마 변조기 및 그 동작 방법 |
CN112019023B (zh) * | 2019-05-31 | 2021-11-02 | 广东美的制冷设备有限公司 | 驱动控制方法、装置、家电设备和计算机可读存储介质 |
US11206743B2 (en) | 2019-07-25 | 2021-12-21 | Emerson Climate Technolgies, Inc. | Electronics enclosure with heat-transfer element |
US11682971B2 (en) * | 2019-09-20 | 2023-06-20 | Texas Instruments Incorporated | 4-phase buck-boost converter |
CN111082652B (zh) * | 2019-12-30 | 2021-05-04 | 深圳市永联科技股份有限公司 | 电源、电源控制方法、装置以及功率校正电路 |
US11323022B2 (en) * | 2020-05-28 | 2022-05-03 | Nxp B.V. | System for controlling inductor current of boost converter |
CN212183768U (zh) * | 2020-06-15 | 2020-12-18 | 珠海市圣昌电子有限公司 | 一种调电压式切相调光电源 |
CN111865047A (zh) * | 2020-07-27 | 2020-10-30 | 珠海格力电器股份有限公司 | 一种电源效率优化方法、装置及电源设备 |
US11366174B2 (en) * | 2020-09-11 | 2022-06-21 | Analog Devices, Inc. | Predicting failures in feedback network of power supplies using a secondary servo loop |
US11596037B2 (en) * | 2020-09-24 | 2023-02-28 | ERP Power, LLC | Voltage ripple detection and driver control for stable output current |
US20220158546A1 (en) * | 2020-11-16 | 2022-05-19 | Nexgen Power Systems, Inc. | Nonlinear, discrete time control of power factor correction power converter |
US10998815B1 (en) * | 2020-11-23 | 2021-05-04 | Robert S. Wrathall | Electrical circuits for power factor correction by measurement and removal of overtones |
US11637493B2 (en) * | 2020-11-23 | 2023-04-25 | Robert S. Wrathall | Electrical circuits for power factor correction by measurement and removal of overtones and power factor maximization |
JP2022100592A (ja) * | 2020-12-24 | 2022-07-06 | 富士電機株式会社 | スイッチング制御回路、電源回路 |
US11695327B2 (en) * | 2021-02-25 | 2023-07-04 | Nxp B.V. | Power converter control using current reconstruction of power factor correction inductor current |
US11575314B2 (en) * | 2021-05-28 | 2023-02-07 | Texas Instruments Incorporated | Autonomous mode transition for multimode operation in boost PFC converters |
RU2767039C1 (ru) * | 2021-05-31 | 2022-03-16 | Общество с ограниченной ответственностью "Ледел" | Драйвер для светодиодного светильника |
US20230092612A1 (en) * | 2021-06-16 | 2023-03-23 | BWI Technology LLC | Dual-Input Renewable Energy DC Microgrid-Ready Lighting Fixtures |
TWI786875B (zh) * | 2021-10-08 | 2022-12-11 | 海韻電子工業股份有限公司 | 功率校正電路的控制模組 |
US11933919B2 (en) | 2022-02-24 | 2024-03-19 | Mixed-Signal Devices Inc. | Systems and methods for synthesis of modulated RF signals |
US11894864B2 (en) * | 2022-03-23 | 2024-02-06 | Silicon Laboratories Inc. | Analog-to-digital converter having punctured quantizer |
EP4262072A1 (en) * | 2022-04-13 | 2023-10-18 | Abb Schweiz Ag | A method for reducing noise in a converter arrangement and a converter arrangement with noise reduction |
CN116260320B (zh) * | 2023-05-12 | 2023-09-05 | 梵塔半导体技术(杭州)有限公司 | 开关电路控制方法、开关电路控制芯片及开关电路 |
CN116317482B (zh) * | 2023-05-12 | 2023-09-05 | 梵塔半导体技术(杭州)有限公司 | 一种开关电路控制方法、开关电路控制芯片及开关电路 |
Family Cites Families (298)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3316495A (en) * | 1964-07-06 | 1967-04-25 | Cons Systems Corp | Low-level commutator with means for providing common mode rejection |
US3423689A (en) * | 1965-08-19 | 1969-01-21 | Hewlett Packard Co | Direct current amplifier |
US3586988A (en) * | 1967-12-01 | 1971-06-22 | Newport Lab | Direct coupled differential amplifier |
US3725804A (en) | 1971-11-26 | 1973-04-03 | Avco Corp | Capacitance compensation circuit for differential amplifier |
US3790878A (en) | 1971-12-22 | 1974-02-05 | Keithley Instruments | Switching regulator having improved control circuiting |
US3881167A (en) | 1973-07-05 | 1975-04-29 | Pelton Company Inc | Method and apparatus to maintain constant phase between reference and output signals |
US4075701A (en) * | 1975-02-12 | 1978-02-21 | Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung | Method and circuit arrangement for adapting the measuring range of a measuring device operating with delta modulation in a navigation system |
US4334250A (en) | 1978-03-16 | 1982-06-08 | Tektronix, Inc. | MFM data encoder with write precompensation |
US4337441A (en) | 1980-02-11 | 1982-06-29 | Tektronix, Inc. | Supply-voltage driver for a differential amplifier |
SE438048B (sv) * | 1980-06-16 | 1985-03-25 | Asea Ab | Fiberoptisk temperaturgivare baserad pa fotoluminiscens hos ett fast material, som er utsatt for den temperatur som skall metas |
US4414493A (en) * | 1981-10-06 | 1983-11-08 | Thomas Industries Inc. | Light dimmer for solid state ballast |
US4476706A (en) | 1982-01-18 | 1984-10-16 | Delphian Partners | Remote calibration system |
US4523128A (en) * | 1982-12-10 | 1985-06-11 | Honeywell Inc. | Remote control of dimmable electronic gas discharge lamp ballasts |
US4700188A (en) * | 1985-01-29 | 1987-10-13 | Micronic Interface Technologies | Electric power measurement system and hall effect based electric power meter for use therein |
DE3528046A1 (de) * | 1985-08-05 | 1987-02-05 | Bbc Brown Boveri & Cie | Rundsteuerempfaenger |
US4677366A (en) * | 1986-05-12 | 1987-06-30 | Pioneer Research, Inc. | Unity power factor power supply |
US4683529A (en) | 1986-11-12 | 1987-07-28 | Zytec Corporation | Switching power supply with automatic power factor correction |
US4797633A (en) * | 1987-03-20 | 1989-01-10 | Video Sound, Inc. | Audio amplifier |
US4994952A (en) | 1988-02-10 | 1991-02-19 | Electronics Research Group, Inc. | Low-noise switching power supply having variable reluctance transformer |
GB8817684D0 (en) * | 1988-07-25 | 1988-09-01 | Astec Int Ltd | Power factor improvement |
GB8821130D0 (en) | 1988-09-09 | 1988-10-12 | Ml Aviation Co Ltd | Inductive coupler |
US4977366A (en) * | 1988-10-07 | 1990-12-11 | Lucas Weinschel Inc. | High frequency power sensing device |
US4937727A (en) * | 1989-03-07 | 1990-06-26 | Rca Licensing Corporation | Switch-mode power supply with transformer-coupled feedback |
US4973919A (en) * | 1989-03-23 | 1990-11-27 | Doble Engineering Company | Amplifying with directly coupled, cascaded amplifiers |
US4940929A (en) * | 1989-06-23 | 1990-07-10 | Apollo Computer, Inc. | AC to DC converter with unity power factor |
US4980898A (en) * | 1989-08-08 | 1990-12-25 | Siemens-Pacesetter, Inc. | Self-oscillating burst mode transmitter with integral number of periods |
US5109185A (en) | 1989-09-29 | 1992-04-28 | Ball Newton E | Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage |
US5006975A (en) * | 1989-11-03 | 1991-04-09 | Cherry Semiconductor Corporation | Power factor correction circuit |
US4992919A (en) * | 1989-12-29 | 1991-02-12 | Lee Chu Quon | Parallel resonant converter with zero voltage switching |
US5003454A (en) * | 1990-01-09 | 1991-03-26 | North American Philips Corporation | Power supply with improved power factor correction |
US5055746A (en) | 1990-08-13 | 1991-10-08 | Electronic Ballast Technology, Incorporated | Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases |
US5278490A (en) * | 1990-09-04 | 1994-01-11 | California Institute Of Technology | One-cycle controlled switching circuit |
US5121079A (en) * | 1991-02-12 | 1992-06-09 | Dargatz Marvin R | Driven-common electronic amplifier |
US5477481A (en) * | 1991-02-15 | 1995-12-19 | Crystal Semiconductor Corporation | Switched-capacitor integrator with chopper stabilization performed at the sampling rate |
US5206540A (en) | 1991-05-09 | 1993-04-27 | Unitrode Corporation | Transformer isolated drive circuit |
JP3158590B2 (ja) * | 1992-01-10 | 2001-04-23 | タカタ株式会社 | シートベルトのトング係止装置 |
DE69223508T2 (de) * | 1992-07-10 | 1998-06-25 | Ibm | Dezimationsfilter für einen Sigma-Delta-Wandler und A/D-Wandler mit einem solchen Filter |
DE69222762T2 (de) * | 1992-07-30 | 1998-02-12 | St Microelectronics Srl | Steuerungsteil und Fehlerverstärker enthaltende Vorrichtung mit einer Schaltung zum Messen der auf einen Spannungssollwert bezogenen Spannungsschwankungen |
US5264780A (en) | 1992-08-10 | 1993-11-23 | International Business Machines Corporation | On time control and gain circuit |
US5313381A (en) | 1992-09-01 | 1994-05-17 | Power Integrations, Inc. | Three-terminal switched mode power supply integrated circuit |
US5359180A (en) * | 1992-10-02 | 1994-10-25 | General Electric Company | Power supply system for arcjet thrusters |
JPH06209569A (ja) * | 1993-01-05 | 1994-07-26 | Yokogawa Electric Corp | スイッチング電源装置 |
US5323157A (en) * | 1993-01-15 | 1994-06-21 | Motorola, Inc. | Sigma-delta digital-to-analog converter with reduced noise |
US5481178A (en) * | 1993-03-23 | 1996-01-02 | Linear Technology Corporation | Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit |
DE4320682C1 (de) | 1993-06-22 | 1995-01-26 | Siemens Ag | Verfahren und Schaltungsanordnung zur Regelung der Beleuchtung eines Raumes |
US5638265A (en) | 1993-08-24 | 1997-06-10 | Gabor; George | Low line harmonic AC to DC power supply |
KR960013948B1 (ko) * | 1993-11-16 | 1996-10-10 | 삼성전자 주식회사 | 역률 보정회로 |
US5383109A (en) | 1993-12-10 | 1995-01-17 | University Of Colorado | High power factor boost rectifier apparatus |
US5479333A (en) * | 1994-04-25 | 1995-12-26 | Chrysler Corporation | Power supply start up booster circuit |
US5565761A (en) * | 1994-09-02 | 1996-10-15 | Micro Linear Corp | Synchronous switching cascade connected offline PFC-PWM combination power converter controller |
JPH0962816A (ja) * | 1994-10-06 | 1997-03-07 | Mitsubishi Electric Corp | 非接触icカードおよびこれを含む非接触icカードシステム |
US5867379A (en) * | 1995-01-12 | 1999-02-02 | University Of Colorado | Non-linear carrier controllers for high power factor rectification |
US5668446A (en) | 1995-01-17 | 1997-09-16 | Negawatt Technologies Inc. | Energy management control system for fluorescent lighting |
JP2730506B2 (ja) | 1995-02-27 | 1998-03-25 | 日本電気株式会社 | 圧電トランスを用いたdc/dcコンバータ |
US5971597A (en) | 1995-03-29 | 1999-10-26 | Hubbell Corporation | Multifunction sensor and network sensor system |
US5747977A (en) * | 1995-03-30 | 1998-05-05 | Micro Linear Corporation | Switching regulator having low power mode responsive to load power consumption |
JPH09140145A (ja) | 1995-11-15 | 1997-05-27 | Samsung Electron Co Ltd | 力率補償回路を備えた昇圧型コンバータ |
GB2307802B (en) | 1995-12-01 | 2000-06-07 | Ibm | Power supply with power factor correction circuit |
KR0154776B1 (ko) * | 1995-12-28 | 1998-12-15 | 김광호 | 역률 보상 회로 |
US5741123A (en) * | 1996-01-18 | 1998-04-21 | Pauly; Lou Allen | Turbocharger compressor fan and housing |
JP3869903B2 (ja) * | 1996-03-05 | 2007-01-17 | キヤノン株式会社 | 電子写真画像形成装置 |
US5815102A (en) * | 1996-06-12 | 1998-09-29 | Audiologic, Incorporated | Delta sigma pwm dac to reduce switching |
US6150969A (en) * | 1996-06-12 | 2000-11-21 | Audiologic, Incorporated | Correction of nonlinear output distortion in a Delta Sigma DAC |
US5798635A (en) * | 1996-06-20 | 1998-08-25 | Micro Linear Corporation | One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller |
US5844399A (en) * | 1996-07-26 | 1998-12-01 | The University Of Toledo | Battery charger control system |
KR100206143B1 (ko) * | 1996-08-28 | 1999-07-01 | 윤종용 | 고역률 보상회로 |
US5781040A (en) | 1996-10-31 | 1998-07-14 | Hewlett-Packard Company | Transformer isolated driver for power transistor using frequency switching as the control signal |
US5912812A (en) | 1996-12-19 | 1999-06-15 | Lucent Technologies Inc. | Boost power converter for powering a load from an AC source |
US5783909A (en) * | 1997-01-10 | 1998-07-21 | Relume Corporation | Maintaining LED luminous intensity |
US6084450A (en) * | 1997-01-14 | 2000-07-04 | The Regents Of The University Of California | PWM controller with one cycle response |
US5960207A (en) * | 1997-01-21 | 1999-09-28 | Dell Usa, L.P. | System and method for reducing power losses by gating an active power factor conversion process |
US5793625A (en) | 1997-01-24 | 1998-08-11 | Baker Hughes Incorporated | Boost converter regulated alternator |
JP3644615B2 (ja) | 1997-02-17 | 2005-05-11 | Tdk株式会社 | スイッチング電源 |
US5952849A (en) * | 1997-02-21 | 1999-09-14 | Analog Devices, Inc. | Logic isolator with high transient immunity |
DE19713814A1 (de) | 1997-04-03 | 1998-10-15 | Siemens Ag | Schaltnetzteil |
US6442213B1 (en) | 1997-04-22 | 2002-08-27 | Silicon Laboratories Inc. | Digital isolation system with hybrid circuit in ADC calibration loop |
US5901176A (en) | 1997-04-29 | 1999-05-04 | Hewlett-Packard Company | Delta-sigma pulse width modulator control circuit |
US6211627B1 (en) * | 1997-07-29 | 2001-04-03 | Michael Callahan | Lighting systems |
US5963086A (en) * | 1997-08-08 | 1999-10-05 | Velodyne Acoustics, Inc. | Class D amplifier with switching control |
US6016038A (en) * | 1997-08-26 | 2000-01-18 | Color Kinetics, Inc. | Multicolored LED lighting method and apparatus |
US6806659B1 (en) * | 1997-08-26 | 2004-10-19 | Color Kinetics, Incorporated | Multicolored LED lighting method and apparatus |
US7014336B1 (en) * | 1999-11-18 | 2006-03-21 | Color Kinetics Incorporated | Systems and methods for generating and modulating illumination conditions |
US7064498B2 (en) * | 1997-08-26 | 2006-06-20 | Color Kinetics Incorporated | Light-emitting diode based products |
US6975079B2 (en) * | 1997-08-26 | 2005-12-13 | Color Kinetics Incorporated | Systems and methods for controlling illumination sources |
US6888322B2 (en) * | 1997-08-26 | 2005-05-03 | Color Kinetics Incorporated | Systems and methods for color changing device and enclosure |
US6967448B2 (en) * | 1997-08-26 | 2005-11-22 | Color Kinetics, Incorporated | Methods and apparatus for controlling illumination |
US6211626B1 (en) * | 1997-08-26 | 2001-04-03 | Color Kinetics, Incorporated | Illumination components |
JPH1172515A (ja) | 1997-08-28 | 1999-03-16 | Iwatsu Electric Co Ltd | 広帯域アナログ絶縁回路 |
US6873065B2 (en) * | 1997-10-23 | 2005-03-29 | Analog Devices, Inc. | Non-optical signal isolator |
US5929400A (en) | 1997-12-22 | 1999-07-27 | Otis Elevator Company | Self commissioning controller for field-oriented elevator motor/drive system |
US5900683A (en) * | 1997-12-23 | 1999-05-04 | Ford Global Technologies, Inc. | Isolated gate driver for power switching device and method for carrying out same |
US6509913B2 (en) * | 1998-04-30 | 2003-01-21 | Openwave Systems Inc. | Configurable man-machine interface |
KR100286047B1 (ko) * | 1998-05-15 | 2001-04-16 | 김덕중 | 역톱니파를 이용한 역률 보정 회로 |
KR100303450B1 (ko) * | 1998-05-29 | 2001-11-30 | 김덕중 | 역률보정제어기 |
US6043633A (en) * | 1998-06-05 | 2000-03-28 | Systel Development & Industries | Power factor correction method and apparatus |
US6083276A (en) * | 1998-06-11 | 2000-07-04 | Corel, Inc. | Creating and configuring component-based applications using a text-based descriptive attribute grammar |
DE19827755A1 (de) * | 1998-06-23 | 2000-03-02 | Siemens Ag | Hybridfilter für ein Wechselspannungsnetz |
IL125328A0 (en) * | 1998-07-13 | 1999-03-12 | Univ Ben Gurion | Modular apparatus for regulating the harmonics of current drawn from power lines |
US6140777A (en) | 1998-07-29 | 2000-10-31 | Philips Electronics North America Corporation | Preconditioner having a digital power factor controller |
KR100293979B1 (ko) | 1998-11-10 | 2001-09-17 | 김덕중 | 스위칭모드파워서플라이 |
DE69833635T2 (de) | 1998-12-14 | 2007-01-18 | Alcatel | Verstärkungsanordnung mit Spannungsverstärkung und reduziertem Leistungsverbrauch |
US6495964B1 (en) | 1998-12-18 | 2002-12-17 | Koninklijke Philips Electronics N.V. | LED luminaire with electrically adjusted color balance using photodetector |
US6091233A (en) | 1999-01-14 | 2000-07-18 | Micro Linear Corporation | Interleaved zero current switching in a power factor correction boost converter |
US6064187A (en) | 1999-02-12 | 2000-05-16 | Analog Devices, Inc. | Voltage regulator compensation circuit and method |
EP1161794A1 (en) * | 1999-03-16 | 2001-12-12 | AudioLogic, Incorporated | Power supply compensation for noise shaped, digital amplifiers |
DE10032846A1 (de) * | 1999-07-12 | 2001-01-25 | Int Rectifier Corp | Leistungsfaktor-Korrektursteuerschaltung |
US6317068B1 (en) | 1999-08-23 | 2001-11-13 | Level One Communications, Inc. | Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface |
US6160724A (en) * | 1999-10-26 | 2000-12-12 | International Business Machines Corporation | Boost doubler circuit wherein an AC bridge rectifier is not required |
US6181114B1 (en) | 1999-10-26 | 2001-01-30 | International Business Machines Corporation | Boost circuit which includes an additional winding for providing an auxiliary output voltage |
US6407515B1 (en) | 1999-11-12 | 2002-06-18 | Lighting Control, Inc. | Power regulator employing a sinusoidal reference |
US7158633B1 (en) * | 1999-11-16 | 2007-01-02 | Silicon Laboratories, Inc. | Method and apparatus for monitoring subscriber loop interface circuitry power dissipation |
JP3594857B2 (ja) * | 1999-11-26 | 2004-12-02 | パイオニア株式会社 | プラズマディスプレイパネル |
US6229271B1 (en) * | 2000-02-24 | 2001-05-08 | Osram Sylvania Inc. | Low distortion line dimmer and dimming ballast |
US6246183B1 (en) * | 2000-02-28 | 2001-06-12 | Litton Systems, Inc. | Dimmable electrodeless light source |
US6636107B2 (en) | 2000-03-28 | 2003-10-21 | International Rectifier Corporation | Active filter for reduction of common mode current |
US6970503B1 (en) * | 2000-04-21 | 2005-11-29 | National Semiconductor Corporation | Apparatus and method for converting analog signal to pulse-width-modulated signal |
US6693571B2 (en) | 2000-05-10 | 2004-02-17 | Cirrus Logic, Inc. | Modulation of a digital input signal using a digital signal modulator and signal splitting |
US6304473B1 (en) * | 2000-06-02 | 2001-10-16 | Iwatt | Operating a power converter at optimal efficiency |
US6882552B2 (en) * | 2000-06-02 | 2005-04-19 | Iwatt, Inc. | Power converter driven by power pulse and sense pulse |
US6344986B1 (en) * | 2000-06-15 | 2002-02-05 | Astec International Limited | Topology and control method for power factor correction |
DE60101978T2 (de) | 2000-06-15 | 2004-12-23 | City University Of Hong Kong | Dimmbares EVG |
US6690594B2 (en) * | 2000-08-10 | 2004-02-10 | Sal G. Amarillas | Electrical power conservation apparatus and method |
US6373340B1 (en) | 2000-08-14 | 2002-04-16 | K. S. Waves, Ltd. | High-efficiency audio power amplifier |
US6636003B2 (en) * | 2000-09-06 | 2003-10-21 | Spectrum Kinetics | Apparatus and method for adjusting the color temperature of white semiconduct or light emitters |
US6404369B1 (en) | 2000-09-29 | 2002-06-11 | Teradyne, Inc. | Digital to analog converter employing sigma-delta loop and feedback DAC model |
US6407691B1 (en) | 2000-10-18 | 2002-06-18 | Cirrus Logic, Inc. | Providing power, clock, and control signals as a single combined signal across an isolation barrier in an ADC |
US6583550B2 (en) * | 2000-10-24 | 2003-06-24 | Toyoda Gosei Co., Ltd. | Fluorescent tube with light emitting diodes |
FR2815790B1 (fr) | 2000-10-24 | 2003-02-07 | St Microelectronics Sa | Convertisseur de tension a circuit de commande autooscillant |
US6343026B1 (en) | 2000-11-09 | 2002-01-29 | Artesyn Technologies, Inc. | Current limit circuit for interleaved converters |
US6369525B1 (en) | 2000-11-21 | 2002-04-09 | Philips Electronics North America | White light-emitting-diode lamp driver based on multiple output converter with output current mode control |
JP2002171205A (ja) | 2000-11-30 | 2002-06-14 | Matsushita Electric Works Ltd | 電力線搬送用端末のシステム設定方法及び電力線搬送用端末設定装置 |
JP3371962B2 (ja) | 2000-12-04 | 2003-01-27 | サンケン電気株式会社 | Dc−dcコンバ−タ |
DE10061563B4 (de) | 2000-12-06 | 2005-12-08 | RUBITEC Gesellschaft für Innovation und Technologie der Ruhr-Universität Bochum mbH | Verfahren und Vorrichtung zum Ein- und Ausschalten von Leistungshalbleitern, insbesondere für ein drehzahlvariables Betreiben einer Asynchronmaschine, ein Betreiben einer Zündschaltung für Ottomotoren, sowie Schaltnetzteil |
US6441558B1 (en) | 2000-12-07 | 2002-08-27 | Koninklijke Philips Electronics N.V. | White LED luminary light control system |
EP1215808B1 (en) * | 2000-12-13 | 2011-05-11 | Semiconductor Components Industries, LLC | A power supply circuit and method thereof to detect demagnitization of the power supply |
CN1121088C (zh) * | 2000-12-26 | 2003-09-10 | 艾黙生网络能源有限公司 | 单相功率因数校正升压变换器 |
US6646848B2 (en) | 2001-01-31 | 2003-11-11 | Matsushita Electric Industrial Co., Ltd. | Switching power supply apparatus |
WO2002062106A1 (en) | 2001-02-02 | 2002-08-08 | Koninklijke Philips Electronics N.V. | Integrated light source |
EP1239575A3 (en) * | 2001-03-08 | 2003-11-05 | Shindengen Electric Manufacturing Company, Limited | DC stabilised power supply |
US6452521B1 (en) | 2001-03-14 | 2002-09-17 | Rosemount Inc. | Mapping a delta-sigma converter range to a sensor range |
US6510995B2 (en) * | 2001-03-16 | 2003-01-28 | Koninklijke Philips Electronics N.V. | RGB LED based light driver using microprocessor controlled AC distributed power system |
US6407514B1 (en) | 2001-03-29 | 2002-06-18 | General Electric Company | Non-synchronous control of self-oscillating resonant converters |
US6531854B2 (en) | 2001-03-30 | 2003-03-11 | Champion Microelectronic Corp. | Power factor correction circuit arrangement |
US6917504B2 (en) * | 2001-05-02 | 2005-07-12 | Supertex, Inc. | Apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystem |
EP1388276B1 (en) | 2001-05-10 | 2011-08-10 | Philips Solid-State Lighting Solutions, Inc. | Systems and methods for synchronizing lighting effects |
US6486645B1 (en) * | 2001-06-13 | 2002-11-26 | Sipex Corporation | Voltage regulation circuit and related methods having a dynamically determined minimum discharge time |
US20020196006A1 (en) | 2001-06-21 | 2002-12-26 | Champion Microelectronic Corp. | Volt-second balanced PFCPWM power converter |
US6628106B1 (en) | 2001-07-30 | 2003-09-30 | University Of Central Florida | Control method and circuit to provide voltage and current regulation for multiphase DC/DC converters |
US6600296B2 (en) * | 2001-11-13 | 2003-07-29 | Intel Corporation | Method and semiconductor die with multiple phase power converter |
IL147578A (en) * | 2002-01-10 | 2006-06-11 | Lightech Electronics Ind Ltd | Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise |
US7006367B2 (en) | 2002-01-11 | 2006-02-28 | Precisionh2 Power Inc. | Power factor controller |
US20080027841A1 (en) | 2002-01-16 | 2008-01-31 | Jeff Scott Eder | System for integrating enterprise performance management |
US6980446B2 (en) | 2002-02-08 | 2005-12-27 | Sanken Electric Co., Ltd. | Circuit for starting power source apparatus |
GB0204212D0 (en) * | 2002-02-22 | 2002-04-10 | Oxley Dev Co Ltd | Led drive circuit |
US7756896B1 (en) | 2002-03-11 | 2010-07-13 | Jp Morgan Chase Bank | System and method for multi-dimensional risk analysis |
DE10212605B4 (de) | 2002-03-21 | 2004-09-23 | Infineon Technologies Ag | Verfahren und Vorrichtung zur getakteten Ansteuerung eines Schaltelements |
JP3947682B2 (ja) | 2002-04-26 | 2007-07-25 | Fdk株式会社 | スイッチング電源回路 |
SE0201432D0 (sv) | 2002-04-29 | 2002-05-13 | Emerson Energy Systems Ab | A Power supply system and apparatus |
US7358679B2 (en) * | 2002-05-09 | 2008-04-15 | Philips Solid-State Lighting Solutions, Inc. | Dimmable LED-based MR16 lighting apparatus and methods |
US6844702B2 (en) * | 2002-05-16 | 2005-01-18 | Koninklijke Philips Electronics N.V. | System, method and apparatus for contact-less battery charging with dynamic control |
US7317445B2 (en) | 2002-05-28 | 2008-01-08 | Koninklijke Philips Electronics N. V. | Motion blur decrease in varying duty cycle |
JP4175027B2 (ja) * | 2002-05-28 | 2008-11-05 | 松下電工株式会社 | 放電灯点灯装置 |
US6657417B1 (en) | 2002-05-31 | 2003-12-02 | Champion Microelectronic Corp. | Power factor correction with carrier control and input voltage sensing |
EP1367703A1 (en) * | 2002-05-31 | 2003-12-03 | STMicroelectronics S.r.l. | Method of regulation of the supply voltage of a load and relative voltage regulator |
US6728121B2 (en) | 2002-05-31 | 2004-04-27 | Green Power Technologies Ltd. | Method and apparatus for active power factor correction with minimum input current distortion |
US6753661B2 (en) * | 2002-06-17 | 2004-06-22 | Koninklijke Philips Electronics N.V. | LED-based white-light backlighting for electronic displays |
EP1525656A1 (en) | 2002-06-23 | 2005-04-27 | Powerlynx A/S | Power converter |
US6756772B2 (en) | 2002-07-08 | 2004-06-29 | Cogency Semiconductor Inc. | Dual-output direct current voltage converter |
US6860628B2 (en) * | 2002-07-17 | 2005-03-01 | Jonas J. Robertson | LED replacement for fluorescent lighting |
US6781351B2 (en) * | 2002-08-17 | 2004-08-24 | Supertex Inc. | AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics |
US6940733B2 (en) * | 2002-08-22 | 2005-09-06 | Supertex, Inc. | Optimal control of wide conversion ratio switching converters |
US6724174B1 (en) | 2002-09-12 | 2004-04-20 | Linear Technology Corp. | Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators |
KR100470599B1 (ko) | 2002-10-16 | 2005-03-10 | 삼성전자주식회사 | 전자기기의 회로를 보호할 수 있는 전원공급장치 |
US6744223B2 (en) * | 2002-10-30 | 2004-06-01 | Quebec, Inc. | Multicolor lamp system |
US6727832B1 (en) * | 2002-11-27 | 2004-04-27 | Cirrus Logic, Inc. | Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same |
US6741123B1 (en) * | 2002-12-26 | 2004-05-25 | Cirrus Logic, Inc. | Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same |
US6842486B2 (en) * | 2003-01-21 | 2005-01-11 | Cirrus Logic, Inc. | Signal processing system with baseband noise modulation and noise fold back reduction |
US6768655B1 (en) * | 2003-02-03 | 2004-07-27 | System General Corp. | Discontinuous mode PFC controller having a power saving modulator and operation method thereof |
JP3947720B2 (ja) * | 2003-02-28 | 2007-07-25 | 日本放送協会 | 白熱灯用調光制御照明装置の使用方法 |
JP4082672B2 (ja) | 2003-03-06 | 2008-04-30 | 株式会社デンソー | 電気絶縁型スイッチング素子駆動回路 |
EP1460775B8 (en) | 2003-03-18 | 2007-02-28 | POWER ONE ITALY S.p.A. | Lighting control with power line modem |
US7078963B1 (en) | 2003-03-21 | 2006-07-18 | D2Audio Corporation | Integrated PULSHI mode with shutdown |
EP1618712A2 (en) * | 2003-04-30 | 2006-01-25 | Analog Devices, Inc. | Signal isolators using micro-transformers |
US7126288B2 (en) | 2003-05-05 | 2006-10-24 | International Rectifier Corporation | Digital electronic ballast control apparatus and method |
JP4072765B2 (ja) * | 2003-05-12 | 2008-04-09 | 日本ビクター株式会社 | 電力増幅回路 |
US7001036B2 (en) * | 2003-05-13 | 2006-02-21 | Universal Plastics Products, Inc. | Electroluminescent illumination for a magnetic compass |
US6956750B1 (en) * | 2003-05-16 | 2005-10-18 | Iwatt Inc. | Power converter controller having event generator for detection of events and generation of digital error |
EP1639534A2 (en) | 2003-06-20 | 2006-03-29 | Gaiasoft Limited | System for facilitating management and organisational development processes |
ITMI20031315A1 (it) * | 2003-06-27 | 2004-12-28 | St Microelectronics Srl | Dispositivo per la correzione del fattore di potenza in alimentatori a commutazione forzata. |
US6944034B1 (en) * | 2003-06-30 | 2005-09-13 | Iwatt Inc. | System and method for input current shaping in a power converter |
US20060238136A1 (en) | 2003-07-02 | 2006-10-26 | Johnson Iii H F | Lamp and bulb for illumination and ambiance lighting |
EP2806531B1 (en) | 2003-07-07 | 2019-10-23 | Nippon Telegraph And Telephone Corporation | Booster |
US6839247B1 (en) | 2003-07-10 | 2005-01-04 | System General Corp. | PFC-PWM controller having a power saving means |
US20050197952A1 (en) | 2003-08-15 | 2005-09-08 | Providus Software Solutions, Inc. | Risk mitigation management |
US6933706B2 (en) | 2003-09-15 | 2005-08-23 | Semiconductor Components Industries, Llc | Method and circuit for optimizing power efficiency in a DC-DC converter |
JP4107209B2 (ja) * | 2003-09-29 | 2008-06-25 | 株式会社村田製作所 | リップルコンバータ |
US6958920B2 (en) * | 2003-10-02 | 2005-10-25 | Supertex, Inc. | Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux |
US7109977B2 (en) * | 2003-10-05 | 2006-09-19 | T2D, Inc. | Slipcover touch input apparatus for displays of computing devices |
ITMI20031987A1 (it) | 2003-10-14 | 2005-04-15 | Archimede Elettronica S R L | Dispositivo e metodo per il controllo del colore di una sorgente di illuminazione |
US20060116898A1 (en) | 2003-11-18 | 2006-06-01 | Peterson Gary E | Interactive risk management system and method with reputation risk management |
US7019507B1 (en) * | 2003-11-26 | 2006-03-28 | Linear Technology Corporation | Methods and circuits for programmable current limit protection |
US7009543B2 (en) * | 2004-01-16 | 2006-03-07 | Cirrus Logic, Inc. | Multiple non-monotonic quantizer regions for noise shaping |
US20050018495A1 (en) * | 2004-01-29 | 2005-01-27 | Netlist, Inc. | Arrangement of integrated circuits in a memory module |
US7034611B2 (en) | 2004-02-09 | 2006-04-25 | Texas Instruments Inc. | Multistage common mode feedback for improved linearity line drivers |
US7142142B2 (en) * | 2004-02-25 | 2006-11-28 | Nelicor Puritan Bennett, Inc. | Multi-bit ADC with sigma-delta modulation |
MXPA06009907A (es) | 2004-03-03 | 2006-12-14 | Johnson & Son Inc S C | Foco de luz de led con emision de ingrediente activo. |
US7233115B2 (en) | 2004-03-15 | 2007-06-19 | Color Kinetics Incorporated | LED-based lighting network power control methods and apparatus |
EP1754121A4 (en) | 2004-03-15 | 2014-02-12 | Philips Solid State Lighting | METHODS AND SYSTEMS FOR PROVIDING LIGHTING SYSTEMS |
JP4337041B2 (ja) * | 2004-03-17 | 2009-09-30 | 株式会社デンソー | Dc−dcコンバータ |
US7266001B1 (en) * | 2004-03-19 | 2007-09-04 | Marvell International Ltd. | Method and apparatus for controlling power factor correction |
US7569996B2 (en) | 2004-03-19 | 2009-08-04 | Fred H Holmes | Omni voltage direct current power supply |
US6977827B2 (en) * | 2004-03-22 | 2005-12-20 | American Superconductor Corporation | Power system having a phase locked loop with a notch filter |
US20050222881A1 (en) | 2004-04-05 | 2005-10-06 | Garry Booker | Management work system and method |
US7317625B2 (en) | 2004-06-04 | 2008-01-08 | Iwatt Inc. | Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction |
US7259524B2 (en) * | 2004-06-10 | 2007-08-21 | Lutron Electronics Co., Inc. | Apparatus and methods for regulating delivery of electrical energy |
EP1608206B1 (en) * | 2004-06-14 | 2009-08-12 | STMicroelectronics S.r.l. | Led driving device with variable light intensity |
US7109791B1 (en) * | 2004-07-09 | 2006-09-19 | Rf Micro Devices, Inc. | Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier |
DE102004033354B4 (de) * | 2004-07-09 | 2015-06-11 | Infineon Technologies Ag | Verfahren zur Ansteuerung eines Schalters in einem Hochsetzsteller und Ansteuerschaltung |
FR2873243A1 (fr) * | 2004-07-13 | 2006-01-20 | St Microelectronics Sa | Circuit d'alimentation adaptable |
US7088059B2 (en) * | 2004-07-21 | 2006-08-08 | Boca Flasher | Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems |
JP4081462B2 (ja) * | 2004-08-02 | 2008-04-23 | 沖電気工業株式会社 | 表示パネルの色合い調整回路 |
DE602004015276D1 (de) * | 2004-08-06 | 2008-09-04 | Verigy Pte Ltd Singapore | Verbesserte Analogsignalerzeugung mittels eines Delta-Sigma Modulators |
JP2006067730A (ja) * | 2004-08-27 | 2006-03-09 | Sanken Electric Co Ltd | 力率改善回路 |
JP4646583B2 (ja) * | 2004-09-17 | 2011-03-09 | キヤノン株式会社 | 撮像装置及びその制御方法 |
US7276861B1 (en) | 2004-09-21 | 2007-10-02 | Exclara, Inc. | System and method for driving LED |
US7292013B1 (en) * | 2004-09-24 | 2007-11-06 | Marvell International Ltd. | Circuits, systems, methods, and software for power factor correction and/or control |
CA2521973C (en) | 2004-09-29 | 2013-12-10 | Tir Systems Ltd. | System and method for controlling luminaires |
US20060125420A1 (en) * | 2004-12-06 | 2006-06-15 | Michael Boone | Candle emulation device |
US7723964B2 (en) | 2004-12-15 | 2010-05-25 | Fujitsu General Limited | Power supply device |
GB2421367B (en) | 2004-12-20 | 2008-09-03 | Stephen Bryce Hayes | Lighting apparatus and method |
TWI253224B (en) * | 2004-12-21 | 2006-04-11 | Richtek Techohnology Corp | Over-voltage and over-current protector and protective method for rising voltage current-mode converter |
US7221130B2 (en) * | 2005-01-05 | 2007-05-22 | Fyrestorm, Inc. | Switching power converter employing pulse frequency modulation control |
US8193795B2 (en) * | 2005-01-05 | 2012-06-05 | Exar, Inc. | Output current and input power regulation with a power converter |
US7180250B1 (en) | 2005-01-25 | 2007-02-20 | Henry Michael Gannon | Triac-based, low voltage AC dimmer |
US7945472B2 (en) | 2005-02-11 | 2011-05-17 | Optimum Outcomes, Llc | Business management tool |
US7102902B1 (en) * | 2005-02-17 | 2006-09-05 | Ledtronics, Inc. | Dimmer circuit for LED |
CA2637757A1 (en) | 2005-03-03 | 2006-09-08 | Tir Technology Lp | Method and apparatus for controlling thermal stress in lighting devices |
US7378805B2 (en) | 2005-03-22 | 2008-05-27 | Fairchild Semiconductor Corporation | Single-stage digital power converter for driving LEDs |
CN100413191C (zh) | 2005-03-30 | 2008-08-20 | 昂宝电子(上海)有限公司 | 用于控制电源变换器中的开关频率变化的系统和方法 |
US7064531B1 (en) * | 2005-03-31 | 2006-06-20 | Micrel, Inc. | PWM buck regulator with LDO standby mode |
US7375476B2 (en) * | 2005-04-08 | 2008-05-20 | S.C. Johnson & Son, Inc. | Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices |
US7456621B2 (en) * | 2005-05-06 | 2008-11-25 | Silicon Laboratories Inc. | Digital controller based power factor correction circuit |
KR100587022B1 (ko) * | 2005-05-18 | 2006-06-08 | 삼성전기주식회사 | 디밍 회로를 갖는 led 구동회로 |
DE102006022845B4 (de) | 2005-05-23 | 2016-01-07 | Infineon Technologies Ag | Ansteuerschaltung für eine Schaltereinheit einer getakteten Leistungsversorgungsschaltung und Resonanzkonverter |
US7106603B1 (en) * | 2005-05-23 | 2006-09-12 | Li Shin International Enterprise Corporation | Switch-mode self-coupling auxiliary power device |
JP2006333053A (ja) * | 2005-05-26 | 2006-12-07 | Renesas Technology Corp | アナログデジタル変換器 |
US7336127B2 (en) | 2005-06-10 | 2008-02-26 | Rf Micro Devices, Inc. | Doherty amplifier configuration for a collector controlled power amplifier |
US7388764B2 (en) | 2005-06-16 | 2008-06-17 | Active-Semi International, Inc. | Primary side constant output current controller |
US7145295B1 (en) * | 2005-07-24 | 2006-12-05 | Aimtron Technology Corp. | Dimming control circuit for light-emitting diodes |
WO2007016373A2 (en) | 2005-07-28 | 2007-02-08 | Synditec, Inc. | Pulsed current averaging controller with amplitude modulation and time division multiplexing for arrays of independent pluralities of light emitting diodes |
TWI277225B (en) * | 2005-08-03 | 2007-03-21 | Beyond Innovation Tech Co Ltd | Apparatus of light source and adjustable control circuit for LEDs |
WO2007019663A1 (en) * | 2005-08-17 | 2007-02-22 | Tir Technology Lp | Digitally controlled luminaire system |
WO2007026170A2 (en) | 2005-09-03 | 2007-03-08 | E-Light Limited | Improvements to lighting systems |
US7249865B2 (en) * | 2005-09-07 | 2007-07-31 | Plastic Inventions And Patents | Combination fluorescent and LED lighting system |
US7545130B2 (en) * | 2005-11-11 | 2009-06-09 | L&L Engineering, Llc | Non-linear controller for switching power supply |
US7099163B1 (en) | 2005-11-14 | 2006-08-29 | Bcd Semiconductor Manufacturing Limited | PWM controller with constant output power limit for a power supply |
US7856566B2 (en) * | 2005-11-29 | 2010-12-21 | Power Integrations, Inc. | Standby arrangement for power supplies |
TWI293543B (en) | 2005-12-07 | 2008-02-11 | Ind Tech Res Inst | Illumination brightness and color control system and method thereof |
KR101243402B1 (ko) | 2005-12-27 | 2013-03-13 | 엘지디스플레이 주식회사 | 액정표시소자의 하이브리드 백라이트 구동 장치 |
US7183957B1 (en) * | 2005-12-30 | 2007-02-27 | Cirrus Logic, Inc. | Signal processing system with analog-to-digital converter using delta-sigma modulation having an internal stabilizer loop |
US7656103B2 (en) | 2006-01-20 | 2010-02-02 | Exclara, Inc. | Impedance matching circuit for current regulation of solid state lighting |
US7310244B2 (en) | 2006-01-25 | 2007-12-18 | System General Corp. | Primary side controlled switching regulator |
KR100755624B1 (ko) * | 2006-02-09 | 2007-09-04 | 삼성전기주식회사 | 필드 순차 칼라 모드의 액정 표시 장치 |
ES2647096T3 (es) | 2006-02-10 | 2017-12-19 | Philips Lighting North America Corporation | Métodos y aparatos para la entrega de potencia controlada con alto factor de potencia utilizando una etapa de conmutación única por carga |
US20080018261A1 (en) * | 2006-05-01 | 2008-01-24 | Kastner Mark A | LED power supply with options for dimming |
CN101127495B (zh) | 2006-08-16 | 2010-04-21 | 昂宝电子(上海)有限公司 | 用于为开关式电源提供控制的系统和方法 |
US7733034B2 (en) | 2006-09-01 | 2010-06-08 | Broadcom Corporation | Single inductor serial-parallel LED driver |
EP1912330B1 (en) | 2006-10-11 | 2009-11-25 | Mitsubishi Electric Information Technology Centre Europe B.V. | Spread-period clock generator |
US20080154679A1 (en) | 2006-11-03 | 2008-06-26 | Wade Claude E | Method and apparatus for a processing risk assessment and operational oversight framework |
US7859859B2 (en) * | 2006-11-20 | 2010-12-28 | Picor Corporation | Primary side sampled feedback control in power converters |
US7902771B2 (en) | 2006-11-21 | 2011-03-08 | Exclara, Inc. | Time division modulation with average current regulation for independent control of arrays of light emitting diodes |
US7864546B2 (en) | 2007-02-13 | 2011-01-04 | Akros Silicon Inc. | DC-DC converter with communication across an isolation pathway |
US7675759B2 (en) * | 2006-12-01 | 2010-03-09 | Flextronics International Usa, Inc. | Power system with power converters having an adaptive controller |
US7667986B2 (en) | 2006-12-01 | 2010-02-23 | Flextronics International Usa, Inc. | Power system with power converters having an adaptive controller |
JP2010513944A (ja) | 2006-12-13 | 2010-04-30 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 発光ダイオードの制御方法と、対応する光センサ・アレイ、バックライト、及び液晶ディスプレィ |
JP2008159550A (ja) | 2006-12-26 | 2008-07-10 | Toshiba Corp | バックライト制御装置及びバックライト制御方法 |
KR101357006B1 (ko) | 2007-01-18 | 2014-01-29 | 페어차일드코리아반도체 주식회사 | 컨버터 및 그 구동 방법 |
US8362838B2 (en) | 2007-01-19 | 2013-01-29 | Cirrus Logic, Inc. | Multi-stage amplifier with multiple sets of fixed and variable voltage rails |
US7288902B1 (en) * | 2007-03-12 | 2007-10-30 | Cirrus Logic, Inc. | Color variations in a dimmable lighting device with stable color temperature light sources |
US7804256B2 (en) | 2007-03-12 | 2010-09-28 | Cirrus Logic, Inc. | Power control system for current regulated light sources |
US7560677B2 (en) | 2007-03-13 | 2009-07-14 | Renaissance Lighting, Inc. | Step-wise intensity control of a solid state lighting system |
GB2447873B (en) | 2007-03-30 | 2009-07-29 | Cambridge Semiconductor Ltd | Forward power converter controllers |
CN101282079B (zh) * | 2007-04-05 | 2011-06-01 | 昂宝电子(上海)有限公司 | 用于功率控制器的系统和方法 |
US7480159B2 (en) * | 2007-04-19 | 2009-01-20 | Leadtrend Technology Corp. | Switching-mode power converter and pulse-width-modulation control circuit with primary-side feedback control |
US7554473B2 (en) * | 2007-05-02 | 2009-06-30 | Cirrus Logic, Inc. | Control system using a nonlinear delta-sigma modulator with nonlinear process modeling |
US7974109B2 (en) | 2007-05-07 | 2011-07-05 | Iwatt Inc. | Digital compensation for cable drop in a primary side control power supply controller |
TW200849778A (en) * | 2007-06-13 | 2008-12-16 | Richtek Technology Corp | Method and device to improve the light-load performance of switching-type converter |
JP4239111B2 (ja) | 2007-06-14 | 2009-03-18 | サンケン電気株式会社 | Ac−dcコンバータ |
US20090070188A1 (en) | 2007-09-07 | 2009-03-12 | Certus Limited (Uk) | Portfolio and project risk assessment |
CN101414193A (zh) * | 2007-10-16 | 2009-04-22 | 鸿富锦精密工业(深圳)有限公司 | 电源自动切换电路 |
US7656687B2 (en) * | 2007-12-11 | 2010-02-02 | Cirrus Logic, Inc. | Modulated transformer-coupled gate control signaling method and apparatus |
US7821333B2 (en) | 2008-01-04 | 2010-10-26 | Texas Instruments Incorporated | High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection |
US7872883B1 (en) * | 2008-01-29 | 2011-01-18 | Fairchild Semiconductor Corporation | Synchronous buck power converter with free-running oscillator |
US8008898B2 (en) * | 2008-01-30 | 2011-08-30 | Cirrus Logic, Inc. | Switching regulator with boosted auxiliary winding supply |
US7750738B2 (en) | 2008-11-20 | 2010-07-06 | Infineon Technologies Ag | Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on MOSFET resistors |
US7777563B2 (en) | 2008-12-18 | 2010-08-17 | Freescale Semiconductor, Inc. | Spread spectrum pulse width modulation method and apparatus |
US7994863B2 (en) | 2008-12-31 | 2011-08-09 | Cirrus Logic, Inc. | Electronic system having common mode voltage range enhancement |
US8248040B2 (en) * | 2009-11-12 | 2012-08-21 | Polar Semiconductor Inc. | Time-limiting mode (TLM) for an interleaved power factor correction (PFC) converter |
-
2007
- 2007-09-30 US US11/865,032 patent/US7554473B2/en active Active
- 2007-12-31 US US11/967,272 patent/US7888922B2/en active Active
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- 2007-12-31 US US11/967,276 patent/US20080272756A1/en not_active Abandoned
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103636109A (zh) * | 2011-06-03 | 2014-03-12 | 塞瑞斯逻辑公司 | 根据开关电力转换器中的次级侧电压的初级侧感测的控制数据确定 |
CN103636109B (zh) * | 2011-06-03 | 2016-08-17 | 塞瑞斯逻辑公司 | 用于操作开关电力转换器的方法和装置以及电力分配系统 |
CN107222088A (zh) * | 2016-03-22 | 2017-09-29 | 台达电子工业股份有限公司 | 控制模块、切换式电源供应装置及峰值电流模式控制方法 |
CN107222088B (zh) * | 2016-03-22 | 2019-10-15 | 台达电子工业股份有限公司 | 控制模块、切换式电源供应装置及峰值电流模式控制方法 |
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