WO2005039026A3 - A high precision digital-to-analog converter with optimized power consumption - Google Patents

A high precision digital-to-analog converter with optimized power consumption Download PDF

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Publication number
WO2005039026A3
WO2005039026A3 PCT/US2004/032080 US2004032080W WO2005039026A3 WO 2005039026 A3 WO2005039026 A3 WO 2005039026A3 US 2004032080 W US2004032080 W US 2004032080W WO 2005039026 A3 WO2005039026 A3 WO 2005039026A3
Authority
WO
WIPO (PCT)
Prior art keywords
voltage output
analog converter
feedback pathway
regulated
power consumption
Prior art date
Application number
PCT/US2004/032080
Other languages
French (fr)
Other versions
WO2005039026A2 (en
Inventor
Stefano Sivero
Lorenzo Bedarida
Massimiliano Frulio
Original Assignee
Atmel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atmel Corp filed Critical Atmel Corp
Priority to EP04793900A priority Critical patent/EP1678565A2/en
Publication of WO2005039026A2 publication Critical patent/WO2005039026A2/en
Publication of WO2005039026A3 publication Critical patent/WO2005039026A3/en

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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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/74—Simultaneous conversion
    • H03M1/76—Simultaneous conversion using switching tree
    • H03M1/765—Simultaneous conversion using switching tree using a single level of switches which are controlled by unary decoded digital signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

A regulated charge pump circuit (Fig. 1) having two-way switching means (36, 38) that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that provides a regulated voltage output with low current consumption from the power source. The first feedback pathway (30, 32, 36) maintains a precise voltage output by regulating a pass device (22) that draws current to the voltage output. The second feedback pathway (30, 34, 38) regulates the voltage output by controlling the connection (18) of a clock input (14) to the charge-pump (10). A variable resistor (28) is used to set the regulated level of the voltage output. A digital-to analog converter (Fig. 4) is formed by using a combination logic circuit (42) to convert a digital input signal (40) to control signals (51-56) for the variable resistor.
PCT/US2004/032080 2003-10-07 2004-10-01 A high precision digital-to-analog converter with optimized power consumption WO2005039026A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04793900A EP1678565A2 (en) 2003-10-07 2004-10-01 A high precision digital-to-analog converter with optimized power consumption

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2003A001924 2003-10-07
IT001924A ITMI20031924A1 (en) 2003-10-07 2003-10-07 HIGH PRECISION DIGITAL TO ANALOGUE CONVERTER WITH OPTIMIZED ENERGY CONSUMPTION.

Publications (2)

Publication Number Publication Date
WO2005039026A2 WO2005039026A2 (en) 2005-04-28
WO2005039026A3 true WO2005039026A3 (en) 2005-08-11

Family

ID=34385818

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/032080 WO2005039026A2 (en) 2003-10-07 2004-10-01 A high precision digital-to-analog converter with optimized power consumption

Country Status (6)

Country Link
US (2) US6906576B2 (en)
EP (1) EP1678565A2 (en)
CN (1) CN100476672C (en)
IT (1) ITMI20031924A1 (en)
TW (1) TWI363476B (en)
WO (1) WO2005039026A2 (en)

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CN101888181B (en) * 2010-08-02 2012-09-05 中国电子科技集团公司第二十四研究所 Charge pump circuit based on feedback
JP2012244660A (en) * 2011-05-16 2012-12-10 Toshiba Corp Semiconductor device with step-up circuit
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CN103095125B (en) * 2011-11-01 2015-05-20 华邦电子股份有限公司 Voltage generator
US8928395B2 (en) 2012-01-17 2015-01-06 Winbond Electronics Corp. Voltage generator
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KR20140078986A (en) * 2012-12-18 2014-06-26 에스케이하이닉스 주식회사 Regulator, Voltage generator, Semiconductor memory device and Voltage generating method
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CN103488223B (en) * 2013-09-11 2015-11-25 天脉聚源(北京)传媒科技有限公司 A kind of output voltage controlling circuit
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CN108322030A (en) * 2018-01-25 2018-07-24 郑州云海信息技术有限公司 A kind of novel discharge circuit and method
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Also Published As

Publication number Publication date
ITMI20031924A1 (en) 2005-04-08
TWI363476B (en) 2012-05-01
US20050189983A1 (en) 2005-09-01
CN100476672C (en) 2009-04-08
EP1678565A2 (en) 2006-07-12
WO2005039026A2 (en) 2005-04-28
CN1882895A (en) 2006-12-20
TW200524256A (en) 2005-07-16
US7049880B2 (en) 2006-05-23
US6906576B2 (en) 2005-06-14
US20050073355A1 (en) 2005-04-07

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