POWER SUPPLY APPARATUS, AND CHARGING METHOD AND SYSTEM - GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

Title:

POWER SUPPLY APPARATUS, AND CHARGING METHOD AND SYSTEM

Document Type and Number:

WIPO Patent Application WO/2022/100268

Kind Code:

A1

Abstract:

A power supply apparatus, and a charging method and system. The apparatus comprises: a rectification module (210) used for rectifying an alternating current voltage to obtain a first pulsating direct current voltage; a conversion module (300) used for performing conversion on the first pulsating direct current voltage to obtain a stable direct current voltage; and a valley-fill circuit (220), wherein the input end of the valley-fill circuit (220) is connected to the output end of the rectification module (210), the output end of the valley-fill circuit (220) is connected to the input end of the conversion module (300), and the valley-fill circuit (220) is used for releasing electric energy to the conversion module (300) when the voltage value of the first pulsating direct current voltage is lower than a first voltage threshold, so as to increase the valley voltage of the first pulsating direct current voltage inputted into the conversion module (300).

Inventors:

TIAN CHEN (CN)
ZHANG JIALIANG (CN)
ZHU JINGPENG (CN)
LU WEIWEI (CN)
SUN JUANJUAN (CN)
SUN JULU (CN)

Application Number:

PCT/CN2021/118056

Publication Date:

May 19, 2022

Filing Date:

September 13, 2021

Export Citation:

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Assignee:

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
POWERLAND TECH INC (CN)

International Classes:

H02M7/04; H02J7/02; H02M3/00

Foreign References:

CN112468003A	2021-03-09
CN111771326A	2020-10-13
CN109599924A	2019-04-09
CN103618461A	2014-03-05
CN109075697A	2018-12-21
CN104079185A	2014-10-01
US20200153178A1	2020-05-14

Other References: