WO2022036971A9 - 基于连续导通模式的反激式开关电源电路及控制方法 - Google Patents

基于连续导通模式的反激式开关电源电路及控制方法 Download PDF

Info

Publication number
WO2022036971A9
WO2022036971A9 PCT/CN2020/138083 CN2020138083W WO2022036971A9 WO 2022036971 A9 WO2022036971 A9 WO 2022036971A9 CN 2020138083 W CN2020138083 W CN 2020138083W WO 2022036971 A9 WO2022036971 A9 WO 2022036971A9
Authority
WO
WIPO (PCT)
Prior art keywords
current control
signal
constant
control circuit
sec
Prior art date
Application number
PCT/CN2020/138083
Other languages
English (en)
French (fr)
Other versions
WO2022036971A1 (zh
Inventor
张�杰
朱敏
王福龙
Original Assignee
苏州力生美半导体有限公司
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 苏州力生美半导体有限公司 filed Critical 苏州力生美半导体有限公司
Priority to US17/773,602 priority Critical patent/US11984809B2/en
Publication of WO2022036971A1 publication Critical patent/WO2022036971A1/zh
Publication of WO2022036971A9 publication Critical patent/WO2022036971A9/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
    • H02M3/22—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
    • H02M3/33523—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 with galvanic isolation between input and output of both the power stage and the feedback loop
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
    • 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
    • H02M1/0009—Devices or circuits for detecting current in a converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

本申请涉及一种基于连续导通模式的反激式开关电源电路及控制方法，包括恒流控制电路、采样电路及峰值电流控制电路，采样电路用以采样副边线圈的导通时间以得到导通时间占空比信号D_SEC，并将导通时间占空比信号D_SEC发送至恒流控制电路，恒流控制电路接收导通时间占空比信号D_SEC，使得导通时间占空比信号D_SEC与预设参考电压信号VREF生成CAC电压信号，恒流控制电路将CAC电压信号与峰值电流控制电路的峰值电流控制信号VCST转换成时间信号，并对时间信号作比对处理以输出调节信号CCOUT，调节信号CCOUT用以主动调节峰值电流控制信号VCST的值，以使得反激式开关电源电路输出恒流，其无需规定副边线圈导通的起始电流为定值，即可使得输出电流恒定，方便快捷。
PCT/CN2020/138083 2020-08-17 2020-12-21 基于连续导通模式的反激式开关电源电路及控制方法 WO2022036971A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/773,602 US11984809B2 (en) 2020-08-17 2020-12-21 CCM-based fly-back switching power supply circuit and control method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010827437.8A CN111884522A (zh) 2020-08-17 2020-08-17 基于连续导通模式的反激式开关电源电路及控制方法
CN202010827437.8 2020-08-17

Publications (2)

Publication Number Publication Date
WO2022036971A1 WO2022036971A1 (zh) 2022-02-24
WO2022036971A9 true WO2022036971A9 (zh) 2022-04-07

Family

ID=73202833

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/138083 WO2022036971A1 (zh) 2020-08-17 2020-12-21 基于连续导通模式的反激式开关电源电路及控制方法

Country Status (3)

Country Link
US (1) US11984809B2 (zh)
CN (1) CN111884522A (zh)
WO (1) WO2022036971A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111884522A (zh) * 2020-08-17 2020-11-03 苏州力生美半导体有限公司 基于连续导通模式的反激式开关电源电路及控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102364991B (zh) * 2011-02-01 2012-10-24 杭州士兰微电子股份有限公司 一种原边控制led恒流驱动开关电源控制器及其方法
CN102946197B (zh) * 2012-09-14 2014-06-25 昂宝电子（上海）有限公司 用于电源变换***的电压和电流控制的***和方法
JP6561612B2 (ja) * 2015-06-17 2019-08-21 富士電機株式会社 スイッチング電源の制御装置
CN106054995B (zh) * 2016-07-04 2017-08-25 东南大学 一种原边反馈反激式电源ccm与dcm模式的恒流控制***
CN107154723B (zh) * 2017-04-26 2019-02-05 东南大学 一种反激式电源ccm与dcm模式的恒流控制***
EP3460977A1 (en) 2017-09-26 2019-03-27 Yu Jing Energy Technology Co., Ltd Primary-side regulated current control system under llc topology
CN111478593A (zh) 2020-05-20 2020-07-31 深圳市力生美半导体股份有限公司 反激式恒压恒流开关电源
CN111884522A (zh) 2020-08-17 2020-11-03 苏州力生美半导体有限公司 基于连续导通模式的反激式开关电源电路及控制方法

Also Published As

Publication number Publication date
US20220385192A1 (en) 2022-12-01
US11984809B2 (en) 2024-05-14
CN111884522A (zh) 2020-11-03
WO2022036971A1 (zh) 2022-02-24

Similar Documents

Publication Publication Date Title
WO2017143876A8 (zh) 用于终端的充电***、充电方法及电源适配器、开关电源
US20200052598A1 (en) Voltage sense control circuit, voltage sense control method and isolated converter thereof
CN104617792A (zh) 用于初级侧调节的电源变换***的电压调节的***和方法
US20120181999A1 (en) High accuracy inductor peak current control scheme for switching power supply
US20190222130A1 (en) Resonant converter
WO2022036971A9 (zh) 基于连续导通模式的反激式开关电源电路及控制方法
EP0991171A3 (de) Sperrwandler
JP2023110007A5 (zh)
US20190104589A1 (en) Dimmable led driver and dimming method
US20200389093A1 (en) Switched mode power converter and conversion method
CN109445501B (zh) 一种高精度高压电流源电路
EP1128535A3 (en) Power converter controll loop
US20200228008A1 (en) Voltage detection apparatus and image forming apparatus
CN108429468B (zh) 自适应调整驱动电压的同步整流控制器及使用其的电路
CN110880892A (zh) 一种励磁调节装置的控制***
EP4105722A3 (en) Power supply apparatus and image forming apparatus
US20220302732A1 (en) Charging circuit and charging device
CN113381608B (zh) 一种直流双向源载设备切换控制电路
GB2275384A (en) Controlling amplifier power supply in dependence on signal level
US6538342B1 (en) Power supply with only feedforward in primary and multiple secondaries
CN204349967U (zh) 一种转换电路
CN212278127U (zh) 基于连续导通模式的反激式开关电源电路
CN212086067U (zh) 一种反激开关电源用输出电压调节装置
CN216252527U (zh) 一种输出控制电源
TWI641210B (zh) PSR current control system under LLC architecture

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20950172

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20950172

Country of ref document: EP

Kind code of ref document: A1