Title:
SWITCH POWER SUPPLY, ELECTRONIC DEVICE, AND SWITCH POWER SUPPLY CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2017/220019
Kind Code:
A1
Abstract:
A switch power supply, an electronic device, and a switch power supply control method. The switch power supply comprises a first switch circuit (31) and a second switch circuit (32) that are cascaded and bear the output power of the switch power supply in a power sharing manner. In addition, an input voltage or output voltage of the first switch circuit is adjusted by using an input voltage control unit (33), so that an input voltage of the second switch circuit works in a preset range. The output voltage of the second switch circuit is used as an output voltage of the switch power supply for output, so as to improve the conversion efficiency of the switch power supply.
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Inventors:
WANG LINGUO (CN)
Application Number:
PCT/CN2017/089760
Publication Date:
December 28, 2017
Filing Date:
June 23, 2017
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02M3/335
Foreign References:
| CN104716841A | 2015-06-17 | |||
| CN1521930A | 2004-08-18 | |||
| US20100067263A1 | 2010-03-18 | |||
| TW201220662A | 2012-05-16 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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