JP2019071715A - スイッチングレギュレータ - Google Patents
スイッチングレギュレータ Download PDFInfo
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- JP2019071715A JP2019071715A JP2017196188A JP2017196188A JP2019071715A JP 2019071715 A JP2019071715 A JP 2019071715A JP 2017196188 A JP2017196188 A JP 2017196188A JP 2017196188 A JP2017196188 A JP 2017196188A JP 2019071715 A JP2019071715 A JP 2019071715A
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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
- 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
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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
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1588—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 including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
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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
- 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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
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- 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
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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
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
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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
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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
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
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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
- 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
- H02M3/1563—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 without using an external clock
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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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0025—Arrangements for modifying reference values, feedback values or error values in the control loop of a converter
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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
- 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
- H02M3/1566—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 with means for compensating against rapid load changes, e.g. with auxiliary current source, with dual mode control or with inductance variation
Abstract
Description
101、102、501 電源端子
103、502 接地端子
110、112、510、512 基準電圧源
111、163、511 誤差増幅回路
113、513 PFM比較回路
114、514 発振回路
120、520 電流電圧変換回路
121、521 スロープ電圧生成回路
122、522 PWM比較回路
123、523 制御回路
124、524 逆流検出回路
130、530 PMOSトランジスタ
131、164、531 NMOSトランジスタ
140、540 インダクタ
141、541 容量
142、542 出力端子
143、144、543、544 抵抗
150、550 PWM変換回路
160 クランプ回路
161 バッファ回路
162、262 定電圧発生部
Claims (5)
- 第1の電源端子に供給される電源電圧から出力端子に所定の出力電圧を生成するスイッチングレギュレータであって、
一端が前記出力端子に接続されたインダクタと、
前記第1の電源端子と前記インダクタの他端との間に接続されたスイッチング素子と、
前記出力電圧に基づく電圧と第1の基準電圧との差を増幅し、第1の誤差電圧を出力する第1の誤差増幅回路と、
第1の入力ノードに入力される前記第1の誤差電圧と第2の入力ノードに入力される第2の基準電圧とに基づき出力ノードに第2の誤差電圧を生成するクランプ回路と、
第1の入力端子に入力される前記第2の誤差電圧と第2の入力端子に入力される前記第2の基準電圧とを比較し、第1または第2のレベルの比較結果信号を出力するPFM比較回路と、
前記比較結果信号が前記第1のレベルのとき所定周波数のクロック信号を出力し、前記比較結果信号が前記第2のレベルのとき前記クロック信号の出力を停止する発振回路と、
前記第2の誤差電圧と前記発振回路の出力とに基づいて前記スイッチング素子を所望のパルス幅でオン・オフするPWM変換回路とを備え、
前記クランプ回路は、前記第2の誤差電圧の下限値を前記第2の基準電圧の電圧値から所定の電圧値を減算した電圧値にクランプすることを特徴とするスイッチングレギュレータ。 - 前記クランプ回路は、
入力が前記第1の入力ノードに接続され、出力が前記出力ノードに接続されたバッファ回路と、
一端が前記出力ノードに接続され、定電圧を発生する定電圧発生部と、
前記定電圧発生部の他端の電圧と前記第2の基準電圧との差を増幅する第2の誤差増幅回路と、
第2の電源端子と前記第1の入力ノードとの間に接続され、ゲートが前記第2の誤差増幅回路の出力に接続されたMOSトランジスタとを有し、
前記所定の電圧値が前記定電圧であることを特徴とする請求項1に記載のスイッチングレギュレータ。 - 前記定電圧発生部は、前記第2の誤差増幅回路の前記定電圧発生部の他端の電圧が入力される端子と前記出力ノードとの間に接続されていることを特徴とする請求項2に記載のスイッチングレギュレータ。
- 前記定電圧発生部は、前記バッファ回路の出力と前記出力ノードとの間に接続されていることを特徴とする請求項2に記載のスイッチングレギュレータ。
- 前記バッファ回路は、ソースフォロワ回路で構成されていることを特徴とする請求項1乃至4のいずれか一項に記載のスイッチングレギュレータ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017196188A JP6932056B2 (ja) | 2017-10-06 | 2017-10-06 | スイッチングレギュレータ |
TW107133441A TWI784054B (zh) | 2017-10-06 | 2018-09-21 | 開關穩壓器 |
CN201811121320.7A CN109639142A (zh) | 2017-10-06 | 2018-09-26 | 开关调节器 |
US16/151,954 US10468989B2 (en) | 2017-10-06 | 2018-10-04 | Switching regulator including a clamp circuit |
KR1020180118290A KR102560435B1 (ko) | 2017-10-06 | 2018-10-04 | 스위칭 레귤레이터 |
Applications Claiming Priority (1)
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JP2017196188A JP6932056B2 (ja) | 2017-10-06 | 2017-10-06 | スイッチングレギュレータ |
Publications (3)
Publication Number | Publication Date |
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JP2019071715A true JP2019071715A (ja) | 2019-05-09 |
JP2019071715A5 JP2019071715A5 (ja) | 2020-11-12 |
JP6932056B2 JP6932056B2 (ja) | 2021-09-08 |
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US (1) | US10468989B2 (ja) |
JP (1) | JP6932056B2 (ja) |
KR (1) | KR102560435B1 (ja) |
CN (1) | CN109639142A (ja) |
TW (1) | TWI784054B (ja) |
Cited By (1)
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KR102238846B1 (ko) * | 2019-11-05 | 2021-04-09 | 현대모비스 주식회사 | Dc-dc 컨버터 전류모드 제어용 보조장치 |
Families Citing this family (3)
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US10726881B1 (en) * | 2019-04-08 | 2020-07-28 | Texas Instruments Incorporated | Supply voltage clamping for improved power supply rejection ratio |
CN114552983A (zh) | 2020-11-25 | 2022-05-27 | 台达电子工业股份有限公司 | 电源系统及其适用的脉宽调制方法 |
TWI749906B (zh) * | 2020-11-25 | 2021-12-11 | 台達電子工業股份有限公司 | 電源系統及其適用之脈寬調變方法 |
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2017
- 2017-10-06 JP JP2017196188A patent/JP6932056B2/ja active Active
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2018
- 2018-09-21 TW TW107133441A patent/TWI784054B/zh active
- 2018-09-26 CN CN201811121320.7A patent/CN109639142A/zh active Pending
- 2018-10-04 KR KR1020180118290A patent/KR102560435B1/ko active IP Right Grant
- 2018-10-04 US US16/151,954 patent/US10468989B2/en active Active
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JP2010259257A (ja) * | 2009-04-27 | 2010-11-11 | Ricoh Co Ltd | スイッチングレギュレータ及びその動作制御方法 |
JP2013168880A (ja) * | 2012-02-16 | 2013-08-29 | Sony Corp | 比較器、ad変換器、固体撮像装置、カメラシステム、および電子機器 |
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KR102238846B1 (ko) * | 2019-11-05 | 2021-04-09 | 현대모비스 주식회사 | Dc-dc 컨버터 전류모드 제어용 보조장치 |
CN112787509A (zh) * | 2019-11-05 | 2021-05-11 | 现代摩比斯株式会社 | 用于控制dc-dc转换器的电流模式的辅助装置 |
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CN109639142A (zh) | 2019-04-16 |
TW201923504A (zh) | 2019-06-16 |
TWI784054B (zh) | 2022-11-21 |
JP6932056B2 (ja) | 2021-09-08 |
KR102560435B1 (ko) | 2023-07-27 |
US20190109541A1 (en) | 2019-04-11 |
KR20190039868A (ko) | 2019-04-16 |
US10468989B2 (en) | 2019-11-05 |
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