JP6912350B2 - ボルテージレギュレータ - Google Patents
ボルテージレギュレータ Download PDFInfo
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- JP6912350B2 JP6912350B2 JP2017199589A JP2017199589A JP6912350B2 JP 6912350 B2 JP6912350 B2 JP 6912350B2 JP 2017199589 A JP2017199589 A JP 2017199589A JP 2017199589 A JP2017199589 A JP 2017199589A JP 6912350 B2 JP6912350 B2 JP 6912350B2
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- voltage
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- circuit
- output
- temperature coefficient
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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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/461—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using an operational amplifier as final control device
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
- G05F1/567—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for temperature compensation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/575—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices characterised by the feedback circuit
-
- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Eletrric Generators (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Description
本発明は、上記課題に鑑みてなされ、出力トランジスタのゲート耐圧を越えることなく、出力電圧のドロップアウト電圧を小さくすることができるボルテージレギュレータを提供する。
誤差増幅回路106は、非反転入力端子が基準電圧回路103に接続され、反転入力端子が出力端子102に接続される。NMOSトランジスタ107は、ゲートが誤差増幅回路106の出力端子に接続され、ソースがグラウンド端子100に接続され、ドレインがNMOSトランジスタ108のソースに接続される。NMOSトランジスタ108は、ゲートが電圧源109に接続され、ドレインがPMOSトランジスタ105のゲートと、I/V変換回路110の一方の端子に接続される。I/V変換回路110の他方の端子は、電源端子101に接続される。PMOSトランジスタ105は、ソースが電源端子101に接続され、ドレインが出力端子102に接続される。I/V変換回路110は、ソースが電源端子101に接続され、ゲートとドレインが抵抗を介して接続されたPMOSトランジスタが接続される。
V1=VDD−Z110・I108 (1)
I108=μn108・Cox108・K108・(VGS108−VTH108)2 (2)
μn108はNMOSトランジスタ108の移動度、Cox108はNMOSトランジスタ108の単位面積当たりのゲート酸化膜容量、K108はNMOSトランジスタ108のアスペクト比、VGS108はNMOSトランジスタ108のゲート・ソース間電圧、VTH108はNMOSトランジスタ108の閾値電圧である。
I108=μn108・Cox108・K108・(V2−VTH108)2 (3)
106、402 誤差増幅回路
109 電圧源
110 I/V変換素子
111 抵抗回路
201 電流源
503 負荷
Claims (4)
- 出力電圧に基づく電圧と基準電圧の差を増幅した信号を出力する誤差増幅回路と、
前記誤差増幅回路の信号が入力され、制御電圧を出力するソース接地増幅回路と、
ゲートに前記ソース接地増幅回路の制御電圧が入力され、前記出力電圧を出力する出力トランジスタと、を備え、
前記ソース接地増幅回路は、信号経路に正の温度係数を有する電圧で制御されるカスコード回路で構成された電流制限回路を備える
ことを特徴とするボルテージレギュレータ。 - 前記ソース接地増幅回路は、
一端が電源端子に接続されたI/V変換回路と、
一端が前記I/V変換回路の他端に接続された前記電流制限回路と、
前記電流制限回路の他端と接地端子の間に接続され、ゲートに前記誤差増幅回路の信号が入力される第一のトランジスタと、
前記I/V変換回路の他端に接続された出力端子を備え、
前記電流制限回路は、
前記正の温度係数を有する電圧を出力する電圧源と、
ゲートに前記正の温度係数を有する電圧が入力される第二のトランジスタと、を備えた
ことを特徴とする請求項1に記載のボルテージレギュレータ。 - 前記電圧源は、
正の温度係数を有する電流を流す電流源と、
前記電流源に基づく電流が流れ、前記正の温度係数を有する電圧を出力する抵抗を備えた
ことを特徴とする請求項2に記載のボルテージレギュレータ。 - 前記電圧源は、
入力端子に定電圧が与えられたソースフォロワで構成された
ことを特徴とする請求項2に記載のボルテージレギュレータ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017199589A JP6912350B2 (ja) | 2017-10-13 | 2017-10-13 | ボルテージレギュレータ |
TW107134661A TWI769327B (zh) | 2017-10-13 | 2018-10-01 | 電壓調節器 |
US16/156,501 US10637344B2 (en) | 2017-10-13 | 2018-10-10 | Voltage regulator |
KR1020180121215A KR102532834B1 (ko) | 2017-10-13 | 2018-10-11 | 볼티지 레귤레이터 |
CN201811189526.3A CN109669501B (zh) | 2017-10-13 | 2018-10-12 | 电压调节器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017199589A JP6912350B2 (ja) | 2017-10-13 | 2017-10-13 | ボルテージレギュレータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019074866A JP2019074866A (ja) | 2019-05-16 |
JP6912350B2 true JP6912350B2 (ja) | 2021-08-04 |
Family
ID=66096167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017199589A Active JP6912350B2 (ja) | 2017-10-13 | 2017-10-13 | ボルテージレギュレータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10637344B2 (ja) |
JP (1) | JP6912350B2 (ja) |
KR (1) | KR102532834B1 (ja) |
CN (1) | CN109669501B (ja) |
TW (1) | TWI769327B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7292108B2 (ja) * | 2019-05-27 | 2023-06-16 | エイブリック株式会社 | ボルテージレギュレータ |
KR20210131038A (ko) * | 2020-04-23 | 2021-11-02 | 삼성전기주식회사 | 레귤레이터 회로 및 프론트 엔드 모듈 |
KR20220046116A (ko) * | 2020-10-07 | 2022-04-14 | 삼성전자주식회사 | 증폭기 및 증폭기를 포함하는 전자 장치 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3686176B2 (ja) * | 1996-08-06 | 2005-08-24 | 株式会社ルネサステクノロジ | 定電流発生回路及び内部電源電圧発生回路 |
JP2000011649A (ja) * | 1998-06-26 | 2000-01-14 | Mitsubishi Electric Corp | 半導体装置 |
US7446514B1 (en) * | 2004-10-22 | 2008-11-04 | Marvell International Ltd. | Linear regulator for use with electronic circuits |
JP4582705B2 (ja) | 2005-03-17 | 2010-11-17 | 株式会社リコー | ボルテージレギュレータ回路 |
JP2007250007A (ja) * | 2007-06-18 | 2007-09-27 | Fujitsu Ltd | 半導体集積回路 |
CN100589058C (zh) * | 2007-12-27 | 2010-02-10 | 北京中星微电子有限公司 | 电流限制电路及包括其的电压调节器和dc-dc转换器 |
US7633280B2 (en) | 2008-01-11 | 2009-12-15 | Texas Instruments Incorporated | Low drop voltage regulator with instant load regulation and method |
JP5082908B2 (ja) * | 2008-02-13 | 2012-11-28 | 富士通セミコンダクター株式会社 | 電源回路及びその過電流保護回路、並びに電子機器 |
CN102063139B (zh) * | 2009-11-12 | 2013-07-17 | 登丰微电子股份有限公司 | 温度系数调整电路及温度补偿电路 |
JP5676340B2 (ja) * | 2011-03-30 | 2015-02-25 | セイコーインスツル株式会社 | ボルテージレギュレータ |
JP6234823B2 (ja) * | 2013-03-06 | 2017-11-22 | エスアイアイ・セミコンダクタ株式会社 | ボルテージレギュレータ |
JP6261349B2 (ja) * | 2014-01-22 | 2018-01-17 | エスアイアイ・セミコンダクタ株式会社 | ボルテージレギュレータ |
JP6457887B2 (ja) * | 2015-05-21 | 2019-01-23 | エイブリック株式会社 | ボルテージレギュレータ |
US9874889B1 (en) * | 2015-07-07 | 2018-01-23 | Marvell International Ltd. | Voltage regulator |
-
2017
- 2017-10-13 JP JP2017199589A patent/JP6912350B2/ja active Active
-
2018
- 2018-10-01 TW TW107134661A patent/TWI769327B/zh active
- 2018-10-10 US US16/156,501 patent/US10637344B2/en active Active
- 2018-10-11 KR KR1020180121215A patent/KR102532834B1/ko active IP Right Grant
- 2018-10-12 CN CN201811189526.3A patent/CN109669501B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN109669501B (zh) | 2022-06-21 |
JP2019074866A (ja) | 2019-05-16 |
KR102532834B1 (ko) | 2023-05-15 |
KR20190041937A (ko) | 2019-04-23 |
TW201923503A (zh) | 2019-06-16 |
CN109669501A (zh) | 2019-04-23 |
TWI769327B (zh) | 2022-07-01 |
US20190115821A1 (en) | 2019-04-18 |
US10637344B2 (en) | 2020-04-28 |
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