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Title:
CONTROL METHOD AND DEVICE FOR SYNCHRONOUS RECTIFICATION OF SELF-DRIVING CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/018993
Kind Code:
A1
Abstract:
A control method and device for synchronous rectification of a self-driving circuit related to the fields of electricity and electronics. The method comprises: obtaining a driving signal of a primary-side switch transistor of a transformer in a synchronous rectification circuit where a synchronous switch transistor is located (101); generating, according to the driving signal of the primary-side switch transistor of the transformer, an auxiliary control signal for adjusting a self-driving time of the synchronous switch transistor (102); generating, according to the auxiliary control signal and the self-driving control signal of the synchronous switch transistor, a target control signal for the synchronous switch transistor (103); and controlling driving of the synchronous switch transistor according to the target control signal (104). The control method and device solve issues of an existing synchronous rectification self-driving control method which cannot be applied to certain specific circumstances due to intrinsic limitations thereof, leading to transistor failure, affecting output indicators of a synchronous rectification circuit.

Inventors:
TU DARUI (CN)
YANG YUNDONG (CN)
ZHENG DACHENG (CN)
WANG MINGJIN (CN)
WU QIONG (CN)
Application Number:
PCT/CN2017/083810
Publication Date:
February 01, 2018
Filing Date:
May 10, 2017
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H02M3/335
Foreign References:
CN105553277A2016-05-04
CN101154891A2008-04-02
CN102570833A2012-07-11
CN101667783A2010-03-10
CN101895201A2010-11-24
CN1825743A2006-08-30
US20080055942A12008-03-06
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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