CN109074145A - 供电电路及供电方法 - Google Patents

供电电路及供电方法 Download PDF

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Publication number
CN109074145A
CN109074145A CN201780028145.4A CN201780028145A CN109074145A CN 109074145 A CN109074145 A CN 109074145A CN 201780028145 A CN201780028145 A CN 201780028145A CN 109074145 A CN109074145 A CN 109074145A
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circuit
voltage
control switch
output
down type
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CN201780028145.4A
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CN109074145B (zh
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张洵
况火根
晁康洁
罗红磊
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Dc-Dc Converters (AREA)

Abstract

一种供电电路，该电路包括：开关电路(410)，用于接入至少一个降压型直流变换电路输出的至少一个第一电压，每个降压型直流变换电路用于对至少一个工作电路供电；控制电路(420)，用于根据工作电路所需电压和至少一个第一电压，开启相应的降压型直流变换电路；输出电路(430)，用于根据开启的所述降压型直流变换电路输出的第一电压，输出第二电压，以对工作电路进行供电，其中，第一电压的电压值大于或等于第二电压的电压值。该电路通过复用电源管理单元中的降压型直流变换电路，有效的达到了高效率，以及减少外围元器件的目的，节约了成本。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN201780028145.4A 2017-03-10 2017-04-28 供电电路及供电方法 Active CN109074145B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201710142501.7 2017-03-10
CN201710142501 2017-03-10
PCT/CN2017/082518 WO2018161422A1 (zh) 2017-03-10 2017-04-28 供电电路及供电方法

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CN109074145A true CN109074145A (zh) 2018-12-21
CN109074145B CN109074145B (zh) 2021-01-15

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CN (1) CN109074145B (zh)
WO (1) WO2018161422A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109188976A (zh) * 2018-09-14 2019-01-11 珠海格力电器股份有限公司 一种控制芯片
CN109787318B (zh) * 2019-02-23 2021-09-03 华为技术有限公司 一种放电电路和电子设备
WO2020215293A1 (zh) * 2019-04-25 2020-10-29 华为技术有限公司 一种供电电路和供电控制方法
CN111030619A (zh) * 2019-12-19 2020-04-17 上海傅硅电子科技有限公司 音频功率放大器及控制其输出电压的方法

Citations (7)

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CN101107581A (zh) * 2005-01-25 2008-01-16 松下电器产业株式会社 电源系统
CN101329387A (zh) * 2007-06-20 2008-12-24 鸿富锦精密工业（深圳）有限公司 电源测试系统
CN101395791B (zh) * 2006-03-06 2012-07-04 皇家飞利浦电子股份有限公司 供电电路及包括供电电路的设备
CN102931734A (zh) * 2011-08-08 2013-02-13 富达通科技股份有限公司 高功率感应式电源供应器及其中的双相解码的方法
CN102955551A (zh) * 2011-08-19 2013-03-06 善元科技股份有限公司 电源供应装置
CN103116392A (zh) * 2011-11-16 2013-05-22 天津三星电子有限公司 一种多显示器集中供电系统
US20160380455A1 (en) * 2015-06-24 2016-12-29 Apple Inc. Systems and methods for bidirectional two-port battery charging with boost functionality

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KR20130046521A (ko) * 2011-10-28 2013-05-08 에스케이하이닉스 주식회사 전압 선택 회로 및 이를 구비한 집적회로
CN103366214B (zh) * 2012-04-11 2016-08-03 国民技术股份有限公司 电源控制电路及电源控制方法
CN105988498B (zh) * 2015-03-06 2017-11-10 展讯通信（上海）有限公司 一种低电压自适应的电源系统

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CN101107581A (zh) * 2005-01-25 2008-01-16 松下电器产业株式会社 电源系统
CN101395791B (zh) * 2006-03-06 2012-07-04 皇家飞利浦电子股份有限公司 供电电路及包括供电电路的设备
CN101329387A (zh) * 2007-06-20 2008-12-24 鸿富锦精密工业（深圳）有限公司 电源测试系统
CN102931734A (zh) * 2011-08-08 2013-02-13 富达通科技股份有限公司 高功率感应式电源供应器及其中的双相解码的方法
CN102955551A (zh) * 2011-08-19 2013-03-06 善元科技股份有限公司 电源供应装置
CN103116392A (zh) * 2011-11-16 2013-05-22 天津三星电子有限公司 一种多显示器集中供电系统
US20160380455A1 (en) * 2015-06-24 2016-12-29 Apple Inc. Systems and methods for bidirectional two-port battery charging with boost functionality

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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易灵芝 等: "面向直流楼宇供电技术的新型多输入Buck-Boost变换器", 《电力自动化设备》 *

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WO2018161422A1 (zh) 2018-09-13
CN109074145B (zh) 2021-01-15

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