Title:
POWER SUPPLY DEVICE AND CHARGING CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/068351
Kind Code:
A1
Abstract:
The present disclosure provides a power supply device and a charging control method. The power supply device comprises: a charging interface; a transformer comprising a primary winding and a secondary winding; a rectifying circuit that is connected to the primary winding of the transformer and used for converting a received alternating current into a first direct current, wherein the voltage value of the first direct current is a first direct current voltage, and the transformer is used for converting the first direct current voltage into a second direct current voltage; a first energy storage capacitor that is connected between the primary winding of the transformer and the charging interface and used for storing and outputting the second direct current voltage; a control unit used for detecting whether an input end of the rectifying circuit is powered down; and a discharging circuit that is connected to the first energy storage capacitor and used for discharging the first energy storage capacitor when the control unit detects that the input end of the rectifying circuit is powered down.
Inventors:
JIANG SENLONG (CN)
Application Number:
PCT/CN2021/108977
Publication Date:
April 07, 2022
Filing Date:
July 28, 2021
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02M3/335
Domestic Patent References:
| WO2019117240A1 | 2019-06-20 |
Foreign References:
| CN104980036A | 2015-10-14 | |||
| CN101795083A | 2010-08-04 | |||
| CN105162313A | 2015-12-16 | |||
| CN204721212U | 2015-10-21 |
Attorney, Agent or Firm:
SHENZHEN LUNGTIN LIANDING INTELLECTUAL PROPERTY AGENT LTD. (CN)
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