CA2419570A1 - Power circuit and method for controlling same - Google Patents
Power circuit and method for controlling same Download PDFInfo
- Publication number
- CA2419570A1 CA2419570A1 CA002419570A CA2419570A CA2419570A1 CA 2419570 A1 CA2419570 A1 CA 2419570A1 CA 002419570 A CA002419570 A CA 002419570A CA 2419570 A CA2419570 A CA 2419570A CA 2419570 A1 CA2419570 A1 CA 2419570A1
- Authority
- CA
- Canada
- Prior art keywords
- power
- current
- power circuit
- power source
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
Abstract
A power circuit is provided which has a small peak value of a current from a power source even in the case of a load in which a load current repeats periodically and alternately a burst flow in a burst period and a non-burst flow in a non-burst period. The above power circuit includes a power source section (11), a power controlling suction (12), arid an energy storing section (13) having a storage capacitor (131) being connected to an output terminal. The power circuit is provided with a current controlling section (14) to control values of detecting resistors according to a result of detection of a voltage input from a power source section (11) and a control switching device (15) having a field effect transistor switch being connected between input and output terminals and a circuit made up of a capacitor (154) in which a flowing period of an output current is controlled by exerting the field effect transistor switch, (153) according to a control signal being produced by detecting a change in an input power voltage using a voltage occurring at another terminal of the detecting resistor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-045219 | 2002-02-21 | ||
JP2002045219A JP2003250228A (en) | 2002-02-21 | 2002-02-21 | Power circuit and control method therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2419570A1 true CA2419570A1 (en) | 2003-08-21 |
CA2419570C CA2419570C (en) | 2006-12-19 |
Family
ID=27799994
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002419570A Expired - Fee Related CA2419570C (en) | 2002-02-21 | 2003-02-19 | Power circuit and method for controlling same |
Country Status (7)
Country | Link |
---|---|
US (1) | US7071668B2 (en) |
JP (1) | JP2003250228A (en) |
KR (1) | KR100539853B1 (en) |
CN (1) | CN1285152C (en) |
CA (1) | CA2419570C (en) |
DE (1) | DE10307317A1 (en) |
TW (1) | TW591846B (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8237386B2 (en) | 2003-08-15 | 2012-08-07 | Apple Inc. | Methods and apparatuses for operating a data processing system |
DE10338272A1 (en) * | 2003-08-15 | 2005-03-17 | Atmel Germany Gmbh | Circuit arrangement and method for power supply |
JP2005137054A (en) * | 2003-10-28 | 2005-05-26 | Nec Tokin Corp | Power source circuit |
US7319282B2 (en) * | 2004-09-21 | 2008-01-15 | Creative Technology Ltd | Switch circuit |
US7327119B2 (en) * | 2004-12-08 | 2008-02-05 | Eastman Kodak Company | Method of extending battery life |
US20060279258A1 (en) * | 2005-06-08 | 2006-12-14 | Alcon, Inc. | Method and system for providing current leveling capability |
US7562234B2 (en) * | 2005-08-25 | 2009-07-14 | Apple Inc. | Methods and apparatuses for dynamic power control |
JP4577781B2 (en) * | 2006-03-03 | 2010-11-10 | 株式会社リコー | Power supply device and image forming apparatus |
US7732947B2 (en) | 2006-08-03 | 2010-06-08 | Konica Minolta Business Technologies, Inc. | Power unit and image forming system |
US7949885B2 (en) * | 2006-12-22 | 2011-05-24 | Ricoh Company, Ltd. | Power supply device, image forming apparatus, and power supply method |
JP4935379B2 (en) * | 2007-01-26 | 2012-05-23 | 富士通株式会社 | Power supply and communication equipment |
US7679433B1 (en) | 2007-02-02 | 2010-03-16 | National Semiconductor Corporation | Circuit and method for RF power amplifier power regulation and modulation envelope tracking |
JP4944654B2 (en) * | 2007-03-30 | 2012-06-06 | キヤノン株式会社 | Power supply device and recording device |
US7868601B1 (en) | 2007-06-15 | 2011-01-11 | National Semiconductor Corporation | System and method for controlling a regulator circuit for radio frequency power amplifier biases |
DE102008011681A1 (en) * | 2008-02-28 | 2009-09-03 | Robert Bosch Gmbh | Control unit and method for controlling personal protective equipment |
JP2009291006A (en) | 2008-05-29 | 2009-12-10 | Fujitsu Ltd | Device and method for converting voltage, and program for determining duty ratio |
JP5237716B2 (en) * | 2008-07-31 | 2013-07-17 | 清田 征房 | Instantaneous peak voltage stabilizer for automotive battery |
JP5406574B2 (en) * | 2008-12-17 | 2014-02-05 | ソニーモバイルコミュニケーションズ株式会社 | Power supply device and electronic device |
DE102009058316A1 (en) * | 2009-12-15 | 2011-06-16 | Giesecke & Devrient Gmbh | Device for generating a supported DC voltage |
TWI395368B (en) * | 2010-07-28 | 2013-05-01 | Iner Aec Executive Yuan | A method for fuel cell system control and a fuel cell system using the same |
JP5516286B2 (en) * | 2010-09-30 | 2014-06-11 | ミツミ電機株式会社 | Current voltage detection circuit and current control circuit |
US8779746B2 (en) * | 2011-04-29 | 2014-07-15 | Texas Instruments Incorporated | Methods and apparatus for constant power/current control for switch-mode power converters |
CN103825450B (en) * | 2012-11-19 | 2017-03-22 | 中兴通讯股份有限公司 | Time division multiple access load system USB interface power supply method and power supply apparatus |
US9106147B2 (en) | 2012-12-07 | 2015-08-11 | Samsung Electro-Mechanics Co., Ltd. | Universal power supply apparatus |
CN104009629B (en) * | 2013-02-21 | 2018-09-28 | 马维尔国际有限公司 | Configurable DC-DC converter |
CN104584371B (en) * | 2013-05-17 | 2017-06-27 | 三洋电机株式会社 | The discharge control method of Battery pack and secondary cell |
CN104218658B (en) * | 2014-09-18 | 2016-08-24 | 上海电力学院 | A kind of micro-capacitance sensor mixed energy storage system control method |
US10903678B2 (en) * | 2014-10-21 | 2021-01-26 | Maxwell Technologies, Inc. | Apparatus and method for providing bidirectional voltage support |
US9438101B1 (en) | 2015-05-07 | 2016-09-06 | Qm Power, Inc. | High speed switching solid state relay circuit |
CN105337363A (en) * | 2015-11-26 | 2016-02-17 | 罗继东 | Charging pile locking mechanism |
CN106254591A (en) * | 2016-09-19 | 2016-12-21 | 苏州凯丰电子电器有限公司 | A kind of mobile phone shell-type charger |
KR102021896B1 (en) * | 2017-03-31 | 2019-11-04 | (주)모토닉 | Protection circuit and motor driver with the same |
JP6835676B2 (en) * | 2017-07-05 | 2021-02-24 | 株式会社ダイヘン | Power system, power supply, control method and control program |
CN111313373B (en) * | 2020-03-25 | 2022-11-29 | 广州华凌制冷设备有限公司 | Power supply circuit, circuit fault detection method, circuit board and vehicle-mounted air conditioner |
CN111857222B (en) * | 2020-06-18 | 2022-04-19 | 苏州浪潮智能科技有限公司 | System for power supply voltage regulation |
CN112117798A (en) * | 2020-09-10 | 2020-12-22 | 深圳市蓝晨科技股份有限公司 | Shutdown charging circuit of USB interface of notebook computer |
CN113311896B (en) * | 2021-07-29 | 2021-12-17 | 唯捷创芯(天津)电子技术股份有限公司 | Self-adaptive overshoot voltage suppression circuit, reference circuit, chip and communication terminal |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50135518A (en) * | 1974-04-18 | 1975-10-27 | ||
JPS6218970A (en) * | 1985-07-17 | 1987-01-27 | Matsushita Electric Ind Co Ltd | Power source device |
JP2001282189A (en) * | 2000-03-29 | 2001-10-12 | Hitachi Ltd | Liquid crystal display device |
JP3512001B2 (en) * | 2000-11-02 | 2004-03-29 | 株式会社村田製作所 | Multi-output DC-DC converter and electronic device using the same |
JP2003018828A (en) * | 2001-06-28 | 2003-01-17 | Sanken Electric Co Ltd | Dc-dc converter |
US6858335B2 (en) * | 2001-11-14 | 2005-02-22 | Relion, Inc. | Fuel cell power systems and methods of operating fuel cell power systems |
JP3753112B2 (en) * | 2002-08-20 | 2006-03-08 | 株式会社村田製作所 | Switching power supply device and electronic device using the same |
JP3705259B2 (en) * | 2002-10-22 | 2005-10-12 | 株式会社デンソー | Power controller |
-
2002
- 2002-02-21 JP JP2002045219A patent/JP2003250228A/en not_active Withdrawn
-
2003
- 2003-02-18 TW TW092103272A patent/TW591846B/en not_active IP Right Cessation
- 2003-02-19 CA CA002419570A patent/CA2419570C/en not_active Expired - Fee Related
- 2003-02-19 US US10/367,813 patent/US7071668B2/en not_active Expired - Fee Related
- 2003-02-20 DE DE10307317A patent/DE10307317A1/en not_active Withdrawn
- 2003-02-20 KR KR10-2003-0010645A patent/KR100539853B1/en not_active IP Right Cessation
- 2003-02-20 CN CNB031061796A patent/CN1285152C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20030164644A1 (en) | 2003-09-04 |
TW591846B (en) | 2004-06-11 |
DE10307317A1 (en) | 2003-10-30 |
CN1440104A (en) | 2003-09-03 |
JP2003250228A (en) | 2003-09-05 |
CA2419570C (en) | 2006-12-19 |
KR100539853B1 (en) | 2005-12-28 |
TW200303639A (en) | 2003-09-01 |
KR20030069870A (en) | 2003-08-27 |
US7071668B2 (en) | 2006-07-04 |
CN1285152C (en) | 2006-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140219 |
|
MKLA | Lapsed |
Effective date: 20140219 |