Title:
APPARATUS AND METHOD FOR SWITCHING POWER SUPPLY CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/103221
Kind Code:
A1
Abstract:
Provided are an apparatus and method for switching a power supply circuit. The apparatus comprises a first power source (110), a second power source (120), a power supply logic selector (130) and a switch (140), wherein the power supply logic selector is connected to the first power source and the second power source and is used for selecting the first power source and/or the second power source to supply power for a power consumption system; the switch is connected to the second power source and the power consumption system; and when an output voltage of the first power source is less than or equal to a first voltage threshold, the second power source supplies power to the power consumption system by means of the switch. The apparatus can realize fast and smooth switching from a first power source to a second power source, and can realize normal operation of a system within a scheduled time.
Inventors:
WANG XUN (CN)
WANG LONG (CN)
WANG LONG (CN)
Application Number:
PCT/CN2017/075770
Publication Date:
June 14, 2018
Filing Date:
March 06, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
| CN201830015U | 2011-05-11 | |||
| CN102403781A | 2012-04-04 | |||
| CN105109429A | 2015-12-02 | |||
| JP2011050158A | 2011-03-10 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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