Title:
ELECTRONIC DEVICE, POWER SUPPLY CONTROL CIRCUIT, AND DRIVE METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/121252
Kind Code:
A1
Abstract:
An electronic device, a power supply control circuit, and a drive method therefor. The power control circuit comprises a switch control module and a signal generating module. The switch control module comprises a voltage input terminal (Vin), a first voltage output terminal (Vout1), a first switch (K1), a second switch (K2), a first capacitor (C1), a second capacitor (C2), a first reverse stop device (D1), and a second reverse stop device (D2). The signal generating module is used for controlling the disconnection and connection of the first switch and the second switch. When the first switch is controlled to connect and the second switch to disconnect, the voltage input terminal charges the first capacitor and the second capacitor, and supplies power to the first voltage output terminal by means of the first capacitor and the first reverse stop device; when the first switch is controlled to disconnect and the second switch to connect, the first capacitor, by means of a power supply loop formed with the second switch and the second reverse stop device, supplies power to the first voltage output terminal, the second capacitor and the power supply loop supplying power to the first voltage output terminal in parallel. There is no need for the power of the voltage input terminal to be consumed during the process of supplying power to the first capacitor and a second capacitor, thereby reducing the standby power consumption of the electronic product.
Inventors:
HUANG GUOSHENG (CN)
LI YI (CN)
LI YI (CN)
Application Number:
PCT/CN2016/113613
Publication Date:
July 20, 2017
Filing Date:
December 30, 2016
Export Citation:
Assignee:
APPOTRONICS CHINA CORP (CN)
International Classes:
H02M3/07
Foreign References:
| EP1720237A1 | 2006-11-08 | |||
| CN101965676A | 2011-02-02 | |||
| CN104049663A | 2014-09-17 | |||
| CN102761244A | 2012-10-31 | |||
| CN202838077U | 2013-03-27 |
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