Title:
SWITCH POWER SOURCE CIRCUIT, POWER ADAPTER, AND CHARGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/067646
Kind Code:
A1
Abstract:
A switch power source circuit, a power adapter, and a charging system, which relate to the technical field of electronics, and can reduce power losses. The switch power source circuit comprises a control chip, a power supply circuit, a power-supply control circuit and an optocoupler circuit, wherein the optocoupler circuit is configured to output a feedback voltage to the power-supply control circuit; and the power-supply control circuit is configured to control, according to the feedback voltage, a voltage which is output from the power supply circuit to a power-source pin of the control chip.
Inventors:
LIU WEI (CN)
HOU QINGHUI (CN)
HOU QINGHUI (CN)
Application Number:
PCT/CN2023/121788
Publication Date:
April 04, 2024
Filing Date:
September 26, 2023
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02M7/04
Foreign References:
| CN113746343A | 2021-12-03 | |||
| CN114552945A | 2022-05-27 | |||
| CN103066812A | 2013-04-24 | |||
| CN102761273A | 2012-10-31 | |||
| JP2009077565A | 2009-04-09 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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