CN114072999A - 一种降压电路、降压装置和电路控制方法 - Google Patents

一种降压电路、降压装置和电路控制方法 Download PDF

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Publication number
CN114072999A
CN114072999A CN202080005547.4A CN202080005547A CN114072999A CN 114072999 A CN114072999 A CN 114072999A CN 202080005547 A CN202080005547 A CN 202080005547A CN 114072999 A CN114072999 A CN 114072999A
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CN
China
Prior art keywords
voltage
circuit
switching device
determining
freewheeling
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Pending
Application number
CN202080005547.4A
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English (en)
Inventor
赵密
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Huawei Digital Power Technologies Co Ltd
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Huawei Digital Power Technologies Co Ltd
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Publication date
Application filed by Huawei Digital Power Technologies Co Ltd filed Critical Huawei Digital Power Technologies Co Ltd
Publication of CN114072999A publication Critical patent/CN114072999A/zh
Pending legal-status Critical Current

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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
    • 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
    • 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
    • H02M1/32—Means for protecting converters other than automatic disconnection

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

Abstract

本申请提供了一种降压电路、降压装置和电路控制方法，该降压电路包括第一开关器件、第二开关器件、第一续流器件、第二续流器件、电感、第一电容和过压保护OVP模块，其中，第一开关器件和第一续流器件组成桥臂；电感的第一端与所述桥臂的中点相连，电感的第二端与第二开关器件相连；第二续流器件的第一端与电感的第二端相连；第一电容的第一端与第二开关器件相连，第一电容与OVP模块以及降压电路的负载并联；OVP模块用于检测所述降压电路的输出电压，降压电路的输出电压是所述负载的输入电压，当输出电压大于保护基准电压时，OVP模块控制第一开关器件和第二开关器件关断。该降压电路可以实现有效的过压保护，提高了电路的安全性。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN202080005547.4A 2020-06-09 2020-06-09 一种降压电路、降压装置和电路控制方法 Pending CN114072999A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/095187 WO2021248333A1 (zh) 2020-06-09 2020-06-09 一种降压电路、降压装置和电路控制方法

Publications (1)

Publication Number Publication Date
CN114072999A true CN114072999A (zh) 2022-02-18

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Country Link
US (1) US20230106017A1 (zh)
EP (1) EP4156487A4 (zh)
CN (1) CN114072999A (zh)
WO (1) WO2021248333A1 (zh)

Citations (8)

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US6509721B1 (en) * 2001-08-27 2003-01-21 Koninklijke Philips Electronics N.V. Buck regulator with ability to handle rapid reduction of load current
CN104466914A (zh) * 2013-12-11 2015-03-25 成都芯源系统有限公司 一种短路保护电路及其开关电源和保护方法
US20160028220A1 (en) * 2014-07-22 2016-01-28 Johnson Electric S.A. Step-down Circuit
CN106489232A (zh) * 2014-08-05 2017-03-08 株式会社村田制作所 开关电源装置
CN109274073A (zh) * 2018-08-14 2019-01-25 矽力杰半导体技术(杭州)有限公司 短路保护电路及应用其的开关变换器
CN109390917A (zh) * 2018-12-19 2019-02-26 北京天诚同创电气有限公司 Dcdc电源的控制方法、装置及dcdc电源保护电路
CN109687712A (zh) * 2019-01-22 2019-04-26 上汽通用汽车有限公司 用于微混控制器的dc-dc装置、控制方法
CN111181370A (zh) * 2019-12-30 2020-05-19 杭州士兰微电子股份有限公司 一种开关电源及其控制电路和控制方法

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Publication number Priority date Publication date Assignee Title
US6407899B1 (en) * 2000-03-07 2002-06-18 International Business Machines Corporation Fault detection in a redundant power converter
CN203872056U (zh) * 2014-05-06 2014-10-08 中国电子科技集团公司第四十一研究所 一种恒功率控制的直流电源
US10158287B2 (en) * 2015-03-26 2018-12-18 Hamilton Sundstrand Corporation Voltage regulator including a buck converter pass switch
WO2017038742A1 (ja) * 2015-09-02 2017-03-09 株式会社オートネットワーク技術研究所 Ｄｃｄｃコンバータ
US10277111B2 (en) * 2017-05-24 2019-04-30 Infineon Technologies Ag Output overvoltage protection for converters
US10530257B1 (en) * 2019-03-26 2020-01-07 International Business Machines Corporation Adding a voltage level to a phase-redundant regulator level

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6509721B1 (en) * 2001-08-27 2003-01-21 Koninklijke Philips Electronics N.V. Buck regulator with ability to handle rapid reduction of load current
CN104466914A (zh) * 2013-12-11 2015-03-25 成都芯源系统有限公司 一种短路保护电路及其开关电源和保护方法
US20160028220A1 (en) * 2014-07-22 2016-01-28 Johnson Electric S.A. Step-down Circuit
CN106489232A (zh) * 2014-08-05 2017-03-08 株式会社村田制作所 开关电源装置
CN109274073A (zh) * 2018-08-14 2019-01-25 矽力杰半导体技术(杭州)有限公司 短路保护电路及应用其的开关变换器
CN109390917A (zh) * 2018-12-19 2019-02-26 北京天诚同创电气有限公司 Dcdc电源的控制方法、装置及dcdc电源保护电路
CN109687712A (zh) * 2019-01-22 2019-04-26 上汽通用汽车有限公司 用于微混控制器的dc-dc装置、控制方法
CN111181370A (zh) * 2019-12-30 2020-05-19 杭州士兰微电子股份有限公司 一种开关电源及其控制电路和控制方法

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EP4156487A1 (en) 2023-03-29
US20230106017A1 (en) 2023-04-06
EP4156487A4 (en) 2023-07-05
WO2021248333A1 (zh) 2021-12-16

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