Title:
APPARATUS AND METHOD FOR PREVENTING BACKWARD CURRENT FLOW OF SYNCHRONOUS RECTIFICATION CIRCUIT, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2016/004691
Kind Code:
A1
Abstract:
Disclosed are an apparatus and method for preventing backward current flow of a synchronous rectification circuit. The apparatus comprises: a sampling circuit (120), a comparison circuit (130), a rectification control circuit (140) and a synchronous control circuit (150); the input end of the sampling circuit (120) is connected to a main power circuit (110); the input end of the comparison circuit (130) is connected with the output end of the sampling circuit (120); the input end of the rectification control circuit (140) is connected with the output end of the comparison circuit (130) while the output end of the rectification control circuit (140) is connected with the main power circuit (110); the output end of the synchronous control circuit (150) is connected with the comparison circuit (130) to control the operating frequency of the comparison circuit (130) and the operating frequency of the main power circuit (110) to be synchronous; the sampling circuit (120) is used for sampling the electric signals of the main power circuit (110) to generate a sampling signal; the comparison circuit (130) is used for receiving the sampling signals from the sampling circuit and comparing the sampling signals with a preset value to generate a comparison result; and the rectification control circuit (140) is used for receiving the comparison result and switching on or off the synchronous rectifier tube of the main power circuit (110) according to the comparison result. Also disclosed is a computer storage medium.
Inventors:
HUANG JIANHUA (CN)
CHENG ZHOULI (CN)
XIE GUANYUN (CN)
YANG LIHUA (CN)
CHENG ZHOULI (CN)
XIE GUANYUN (CN)
YANG LIHUA (CN)
Application Number:
PCT/CN2014/088471
Publication Date:
January 14, 2016
Filing Date:
October 13, 2014
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02M7/219
Foreign References:
| CN1571255A | 2005-01-26 | |||
| CN103178712A | 2013-06-26 | |||
| CN103138240A | 2013-06-05 | |||
| US20080136383A1 | 2008-06-12 |
Attorney, Agent or Firm:
CHINA PAT INTELLECTUAL PROPERTY OFFICE (CN)
北京派特恩知识产权代理有限公司 (CN)
北京派特恩知识产权代理有限公司 (CN)
Download PDF:
Previous Patent: PIXEL STRUCTURE, DRIVING METHOD THEREFOR, AND DISPLAY DEVICE
Next Patent: ARRAY SUBSTRATE MANUFACTURING METHOD
Next Patent: ARRAY SUBSTRATE MANUFACTURING METHOD