TW200741403A - Improvements in switching regulator circuits - Google Patents

Improvements in switching regulator circuits

Info

Publication number
TW200741403A
TW200741403A TW096114555A TW96114555A TW200741403A TW 200741403 A TW200741403 A TW 200741403A TW 096114555 A TW096114555 A TW 096114555A TW 96114555 A TW96114555 A TW 96114555A TW 200741403 A TW200741403 A TW 200741403A
Authority
TW
Taiwan
Prior art keywords
current
inductor
main switch
duty cycle
regulator
Prior art date
Application number
TW096114555A
Other languages
English (en)
Inventor
David Dearn
Holger Haiplik
Original Assignee
Wolfson Microelectronics Plc
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 Wolfson Microelectronics Plc filed Critical Wolfson Microelectronics Plc
Publication of TW200741403A publication Critical patent/TW200741403A/zh

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
    • H02M3/10—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
    • 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
    • G05F1/569—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 protection
    • G05F1/573—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 protection with overcurrent detector
    • 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
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
TW096114555A 2006-04-26 2007-04-25 Improvements in switching regulator circuits TW200741403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0608192A GB2437556B (en) 2006-04-26 2006-04-26 Improvements in switching regulator circuits

Publications (1)

Publication Number Publication Date
TW200741403A true TW200741403A (en) 2007-11-01

Family

ID=36589800

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096114555A TW200741403A (en) 2006-04-26 2007-04-25 Improvements in switching regulator circuits

Country Status (5)

Country Link
US (1) US7605574B2 (zh)
EP (1) EP1850468A3 (zh)
CN (1) CN101064472A (zh)
GB (1) GB2437556B (zh)
TW (1) TW200741403A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI384741B (zh) * 2009-08-17 2013-02-01 Richtek Technology Corp 具有暫態控制功能之切換式電源電路與其控制電路與方法
TWI462454B (zh) * 2012-06-28 2014-11-21 Linear Techn Inc 具備自動補償之電流模式電壓調節器

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323012B4 (de) * 2003-05-21 2005-06-02 Austriamicrosystems Ag Programmierbare, integrierte Schaltungsanordnung und Verfahren zur Programmierung einer integrierten Schaltungsanordnung
US7919952B1 (en) 2005-03-21 2011-04-05 Microsemi Corporation Automatic gain control technique for current monitoring in current-mode switching regulators
US7425819B2 (en) * 2005-06-16 2008-09-16 Microsemi Corporation Slope compensation circuit
JP4781744B2 (ja) * 2005-08-05 2011-09-28 ローム株式会社 電源装置及びこれを用いた電気機器
US8018694B1 (en) * 2007-02-16 2011-09-13 Fairchild Semiconductor Corporation Over-current protection for a power converter
US7764520B2 (en) * 2007-04-06 2010-07-27 Power Integrations, Inc. Method and apparatus for on/off control of a power converter
US7936157B2 (en) * 2007-05-29 2011-05-03 Fuji Electric Device Technology Co., Ltd. Switching power supply system
US8946020B2 (en) 2007-09-06 2015-02-03 Spansion, Llc Method of forming controllably conductive oxide
JP5104145B2 (ja) * 2007-09-13 2012-12-19 富士電機株式会社 スイッチング電源
WO2009059459A1 (en) * 2007-11-07 2009-05-14 Texas Instruments Incorporated A power regulator system with current limit independent of duty cycle and its regulation method
JP5115347B2 (ja) 2008-06-12 2013-01-09 富士通セミコンダクター株式会社 Ｄｃ−ｄｃコンバータの制御回路、ｄｃ−ｄｃコンバータ、およびｄｃ−ｄｃコンバータの制御方法
US8004258B2 (en) * 2008-08-15 2011-08-23 Infineon Technologies Ag Regulation of a current through an inductive load
WO2010062629A1 (en) * 2008-10-27 2010-06-03 Wildcharge, Inc. Switch-mode power supply method and apparatus using switch-node feedback
WO2010073196A1 (en) 2008-12-22 2010-07-01 Nxp B.V. Resonant converter
TWI374602B (en) * 2008-12-29 2012-10-11 Richtek Technology Corp Power supply control circuit and method for sensing voltage in the power supply control circuit
US8138734B2 (en) * 2009-04-06 2012-03-20 Monolithic Power Systems, Inc. Accurate current limit for peak current mode DC-DC converter
US8085005B2 (en) * 2009-06-18 2011-12-27 Micrel, Inc. Buck-boost converter with sample and hold circuit in current loop
JP5327486B2 (ja) * 2009-06-22 2013-10-30 トヨタ自動車株式会社 コンバータ制御装置
US8786265B2 (en) * 2009-06-22 2014-07-22 Linear Technology Corporation Adjustable current limit switching regulator with constant loop gain
GB2473598B (en) * 2009-07-30 2013-03-06 Pulse Electronics Avionics Ltd Transient differential switching regulator
US8247992B2 (en) * 2010-03-23 2012-08-21 Green Mark Technology Inc. LED driver circuit
CN102201736A (zh) * 2010-03-25 2011-09-28 上海沙丘微电子有限公司 Dc/dc转换器开关的恒定电流限制电路
JP5609210B2 (ja) * 2010-03-31 2014-10-22 富士通セミコンダクター株式会社 電源装置、制御回路及び電源装置の制御方法
TWI460970B (zh) * 2010-04-02 2014-11-11 Leadtrend Tech Corp 適應性斜率補償模組及其方法
WO2011143778A1 (en) * 2010-05-20 2011-11-24 Audera International Sales Inc. Power supply circuits for audio amplifiers
US8294388B2 (en) * 2010-05-25 2012-10-23 Texas Instruments Incorporated Driving system with inductor pre-charging for LED systems with PWM dimming control or other loads
US8334683B2 (en) * 2010-08-24 2012-12-18 Intersil Americas Inc. System and method for current limiting a DC-DC converter
US9553501B2 (en) * 2010-12-08 2017-01-24 On-Bright Electronics (Shanghai) Co., Ltd. System and method providing over current protection based on duty cycle information for power converter
KR101730629B1 (ko) * 2010-12-13 2017-04-27 페어차일드코리아반도체 주식회사 전력 변환 장치 및 그 출력 전류 감지 방법
EP2466740B1 (en) * 2010-12-14 2020-02-05 Dialog Semiconductor GmbH Circuit of high efficient buck-boost switching regulator and control method thereof
US8638048B2 (en) * 2011-04-12 2014-01-28 Infineon Technologies Ag Circuit for determining an average value
CN102323841B (zh) * 2011-05-06 2013-10-23 矽力杰半导体技术(杭州)有限公司 一种电流滞环控制电路、电流滞环控制方法以及应用其的直流-直流变换器
US8970192B2 (en) * 2011-05-20 2015-03-03 Analog Devices, Inc. Buck converter with comparator output signal modification circuit
TWI430071B (zh) * 2011-06-02 2014-03-11 Richtek Technology Corp 功率因子校正電路、用於功率因子校正電路的控制電路與經由功率因子校正驅動負載的方法
CN102255502B (zh) * 2011-07-16 2014-04-16 西安电子科技大学 应用于反激式开关电源的初级电感校正电路
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
CN102427296B (zh) * 2011-09-14 2013-10-09 矽力杰半导体技术(杭州)有限公司 一种低静态电流的开关型调节器
CN103078515A (zh) 2011-10-25 2013-05-01 通用电气公司 谐振电源、变换器控制器、磁共振成像系统及控制方法
CN103076580B (zh) 2011-10-25 2016-02-03 通用电气公司 梯度放大器、逆变器控制器、磁共振成像系统及控制方法
CN103078510B (zh) * 2011-10-25 2015-11-25 通用电气公司 谐振电源、磁共振成像系统及控制方法
EP2777140A2 (de) * 2011-11-07 2014-09-17 Ams Ag Schaltung zur gleichspannungswandlung mit strombegrenzung
CN105246194B (zh) 2011-11-15 2018-07-03 昂宝电子（上海）有限公司 用于各种操作模式中的恒流控制的led照明系统和方法
US20120298201A1 (en) * 2011-11-18 2012-11-29 Erich Kai Stephan Solar panel racking system
CN102412712A (zh) * 2011-11-29 2012-04-11 杭州矽力杰半导体技术有限公司 一种直流变换器的补偿控制电路及方法
CN102420520B (zh) * 2011-12-02 2014-02-26 电子科技大学 一种限流保护电路以及集成该电路的dc-dc转换器
KR101234669B1 (ko) * 2011-12-08 2013-02-19 현대자동차주식회사 친환경 차량용 ｄｃ-ｄｃ컨버터의 전류 보상방법
TWI439025B (zh) * 2012-05-07 2014-05-21 Richtek Technology Corp 可減少升降壓式轉換器之切換損失的控制電路及相關的切換式穩壓器
US20140084884A1 (en) * 2012-07-06 2014-03-27 Jong J. Lee Lc switching regulators
US8878509B2 (en) 2012-08-17 2014-11-04 St-Ericsson Sa Current-mode controller for step-down (buck) converter
US9270171B2 (en) * 2012-08-22 2016-02-23 Allegro Microsystems, Llc Methods and apparatus for DC-DC converter having dithered slope compensation
US9077259B2 (en) * 2012-09-05 2015-07-07 Taiwan Semiconductor Manufacturing Co., Ltd. Gate driver circuit and method
EP2775599B1 (en) * 2013-03-04 2018-09-05 Nxp B.V. Boost converter
US9058043B2 (en) * 2013-03-07 2015-06-16 Excelliance Mos Corporation Voltage converter for generating output signal with steady ripple
CN103312200B (zh) * 2013-06-28 2016-08-10 成都芯源系统有限公司 功率变换器、限流单元、控制电路及相关控制方法
US9450487B2 (en) * 2013-07-17 2016-09-20 Texas Instruments Incorporated DC to DC converter
CN103401424B (zh) 2013-07-19 2014-12-17 昂宝电子（上海）有限公司 用于调整电源变换系统的输出电流的系统和方法
CN103475216B (zh) * 2013-09-05 2016-05-11 成都芯源系统有限公司 功率变换器、时钟模块、控制电路及相关控制方法
CA2830914C (en) 2013-10-11 2018-06-26 Polar Racking Inc. Support racking for solar panel
CN104578783B (zh) * 2013-10-15 2017-08-25 台达电子企业管理（上海）有限公司 转换器和控制所述转换器的方法
CN103762842A (zh) * 2013-11-25 2014-04-30 苏州贝克微电子有限公司 一种自适应补偿斜坡发生器
CN103618455B (zh) * 2013-12-10 2016-02-03 东南大学 减小单电感双输出变换器输出稳态误差的方法及其电路
CN103702490B (zh) * 2014-01-02 2015-12-02 张洪为 自适应基准恒流源led驱动装置及方法
CN105375760B (zh) * 2014-08-27 2018-05-29 英特赛尔美国有限公司 具有组合的控制信号和改善的动态范围的电流模式控制调制器
US9641075B2 (en) * 2014-12-08 2017-05-02 Nxp B.V. Current feedback and offset voltage cancellation for DC-DC converter
CN104467746B (zh) * 2014-12-09 2017-04-05 中国航空工业集团公司第六三一研究所 一种占空比调整方法及电路
EP3035515A1 (en) * 2014-12-16 2016-06-22 ABB Technology Oy Isolated DC-DC converter
US10270334B2 (en) 2015-05-15 2019-04-23 On-Bright Electronics (Shanghai) Co., Ltd. Systems and methods for output current regulation in power conversion systems
CN104953829B (zh) * 2015-05-21 2018-05-04 西南交通大学 一种应用于buck变换器的准定频峰值电流控制方法
US9780657B2 (en) * 2015-07-21 2017-10-03 Qualcomm Incorporated Circuits and methods for controlling a boost switching regulator based on inductor current
EP3188351B1 (en) 2015-12-28 2020-12-02 Rohm Co., Ltd. Buck converter with duty ratio based fault detection
US9837903B2 (en) 2015-12-31 2017-12-05 Stmicroelectronics S.R.L. Method to recover from current loop instability after cycle by cycle current limit intervention in peak current mode control
US10153693B2 (en) 2016-02-03 2018-12-11 Hamilton Sundstrand Corporation DC-DC converter including dynamically adjusted duty cycle limit
CN105790580B (zh) * 2016-05-11 2018-05-01 深圳市华星光电技术有限公司 电源系统及电感电流峰值的控制方法
US10205448B2 (en) * 2016-05-19 2019-02-12 Joulwatt Technology (Hangzhou) Co., Ltd. Switch control circuit and switch circuit
CN106059297B (zh) * 2016-06-12 2019-05-21 深圳市华星光电技术有限公司 直流电压转换电路
FR3052935B1 (fr) * 2016-06-21 2020-08-28 Thales Sa Convertisseur d'energie a decoupage a reduction des biais statiques introduits par une rampe de stabilisation
US9628019B1 (en) 2016-09-09 2017-04-18 Polar Racking Inc. Photovoltaic panel racking system
US10122269B2 (en) * 2016-09-22 2018-11-06 Apple Inc. Current mode control of a buck converter using coupled inductance
EP3327916B1 (en) * 2016-11-29 2019-08-28 NXP USA, Inc. Current-mode dc/dc converter and method therefor
US9755519B1 (en) 2017-03-03 2017-09-05 Powerventure Semiconductor Limited Switching power converter control
US10298123B2 (en) * 2017-06-06 2019-05-21 Infineon Technologies Austria Ag Power supply control and use of generated ramp signal to control activation
US10523119B2 (en) 2017-07-05 2019-12-31 Dialog Semiconductor (Uk) Limited Compensation ramp offset removal
JP2019032476A (ja) * 2017-08-09 2019-02-28 株式会社Ｊｏｌｅｄ 電流制限回路、表示装置、及び、電流制限方法
US10720835B2 (en) 2017-09-18 2020-07-21 Cirrus Logic, Inc. Limiting average current in a peak-controlled boost converter
JP6932056B2 (ja) * 2017-10-06 2021-09-08 エイブリック株式会社 スイッチングレギュレータ
EP3480933B1 (en) * 2017-11-01 2021-03-03 Goodix Technology (HK) Company Limited A circuit for a switched mode power supply
US11031867B2 (en) 2017-12-08 2021-06-08 Cirrus Logic, Inc. Digital-to-analog converter with embedded minimal error adaptive slope compensation for digital peak current controlled switched mode power supply
CN108023468A (zh) * 2017-12-28 2018-05-11 杰华特微电子（杭州）有限公司 开关电源控制电路及开关电源
CN108336903A (zh) * 2018-03-13 2018-07-27 杰华特微电子（杭州）有限公司 用于降压电路的控制电路及控制方法
JP7054358B2 (ja) * 2018-03-30 2022-04-13 株式会社Soken 電力変換装置の制御装置
US10734885B2 (en) 2018-06-19 2020-08-04 Cirrus Logic, Inc. Removal of near DC errors in a peak-controlled boost converter using a low-bandwidth secondary control loop
CN108923646B (zh) * 2018-08-27 2020-02-04 电子科技大学 一种基于断续模的周期注入式恒流控制电路
US10554124B1 (en) * 2018-10-01 2020-02-04 Dialog Semiconductor (Uk) Limited Multi-level buck converter with current limit and 50% duty cycle control
US10666139B1 (en) * 2019-02-27 2020-05-26 Analog Devices International Unlimited Company Switching regulator with proportional-integral (PI) control compensation network clamp
JP7345326B2 (ja) * 2019-09-06 2023-09-15 ローム株式会社 発光素子駆動装置
US11424672B2 (en) * 2020-01-27 2022-08-23 Qualcomm Incorporated Current limiting for a boost converter
US11223273B2 (en) 2020-04-28 2022-01-11 Semiconductor Components Industries, Llc Sub-harmonic oscillation control in peak current limit mode switching system
JP7534599B2 (ja) * 2020-05-28 2024-08-15 ミツミ電機株式会社 直流電源装置および電源ラインのノイズ抑制方法
CN112134451B (zh) * 2020-08-28 2022-08-02 上海艾为电子技术股份有限公司 具有过流保护的装置及过流保护方法
CN114189133A (zh) 2020-09-15 2022-03-15 力智电子股份有限公司 电源转换器的控制电路
US12095366B2 (en) 2021-04-06 2024-09-17 Semiconductor Components Industries, Llc Current limiting circuit
US12003179B2 (en) * 2021-10-08 2024-06-04 Infineon Technologies Austria Ag Power supply and emulated current mode to control generation of an output voltage
TWI792971B (zh) * 2022-04-08 2023-02-11 盛群半導體股份有限公司 電壓調節電路以及電流限制電路
CN116633138B (zh) * 2023-07-20 2023-10-24 杰华特微电子股份有限公司 功率变换器及其斜坡信号产生器及斜坡信号产生方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305192A (en) * 1991-11-01 1994-04-19 Linear Technology Corporation Switching regulator circuit using magnetic flux-sensing
US5687066A (en) 1995-04-06 1997-11-11 Progressive Dynamics, Inc. Power converter with overvoltage protection
US5717322A (en) * 1996-02-16 1998-02-10 Harris Corporation Method to improve the peak-current limit in a slope-compensated, current-mode DC/DC converter, and circuit therefor
US6498466B1 (en) * 2000-05-23 2002-12-24 Linear Technology Corp. Cancellation of slope compensation effect on current limit
US7046530B2 (en) 2002-11-29 2006-05-16 Sigmatel, Inc. Method and apparatus for current limiting of an output of a DC-to-DC converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI384741B (zh) * 2009-08-17 2013-02-01 Richtek Technology Corp 具有暫態控制功能之切換式電源電路與其控制電路與方法
TWI462454B (zh) * 2012-06-28 2014-11-21 Linear Techn Inc 具備自動補償之電流模式電壓調節器

Also Published As

Publication number Publication date
EP1850468A2 (en) 2007-10-31
EP1850468A3 (en) 2008-06-04
GB0608192D0 (en) 2006-06-07
GB2437556A (en) 2007-10-31
GB2437556B (en) 2011-03-23
CN101064472A (zh) 2007-10-31
US20070252567A1 (en) 2007-11-01
US7605574B2 (en) 2009-10-20

Similar Documents

Publication Publication Date Title
TW200741403A (en) Improvements in switching regulator circuits
JP2006353087A5 (zh)
TW200737673A (en) Synchronous rectification switching regulator, control circuit thereof, and method of controlling the operation thereof
TW200508832A (en) PWM switching regulator control circuit
EP4404693A3 (en) Closed-loop load control circuit having a wide output range
TW200713768A (en) Auto-adaptive voltage positioning high-speed PWM controlling device and driving signal generation method thereof
WO2008097305A3 (en) Adaptive output current control for switching circuits
JP2008092794A5 (zh)
TW200503393A (en) Switching regulator
TW200735512A (en) Method for regulating a voltage and circuit therefor
EP1732199A3 (en) Method and apparatus to reduce maximum power from a power supply with transition region regulation
EP1764901A3 (en) Method and apparatus to improve regulation of a power supply with a compensation signal responsive to the switching signal
WO2009025517A3 (en) Power factor correction circuit
TW200951663A (en) Buck-boost switching regulator and control method thereof
TW200707157A (en) Constant-voltage power supply circuit with fold-back-type overcurrent protection circuit
TW200600995A (en) DC-DC regulator with switching frequency responsive to load
TW200625050A (en) Adaptive control for inductor based buck-boost voltage regulators
TW200721652A (en) A switching regulator, and a circuit and method for controlling the switching regulator
WO2010003785A3 (en) Power supply unit having a voltage converter
TW200627767A (en) Switching power supply
JP2007020394A5 (zh)
TW200721654A (en) Control circuit for current and voltage control in a switching power supply
TW200642249A (en) Switching regulator over voltage reduction circuit and method
TW200605485A (en) DC-DC converter circuit
ATE396444T1 (de) Gleichstromspannungsregler mit niedrigem spannungsabfall