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Patent Searching and Data


Title:
CONTROL METHOD AND DEVICE FOR RESONANT CONVERTER
Document Type and Number:
WIPO Patent Application WO/2018/019095
Kind Code:
A1
Abstract:
A control method and device for a resonant converter. The control method comprises: acquiring a drive signal regulation quantity and a current output voltage for a resonant converter under a load condition at a current moment (S301, S501); according to the drive signal regulation quantity and the current output voltage, selecting a current drive state of the resonant converter (S302, S502); and regulating, under a current drive state, a duty cycle and an operation frequency of a drive signal for the resonant converter to a target duty cycle and a stable operation frequency, respectively (S303, S504). The control method and device can avoid the situation where an operation frequency of a drive signal for a resonant converter increases constantly or the resonant converter is in an unstable state when a load changes, thereby reducing the switching loss of the resonant converter.

Inventors:
FENG YU (CN)
LI QIUSHI (CN)
WANG TAO (CN)
ZHANG NANSHAN (CN)
Application Number:
PCT/CN2017/091665
Publication Date:
February 01, 2018
Filing Date:
July 04, 2017
Export Citation:
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Assignee:
ZTE CORP (CN)
International Classes:
H02M3/335
Foreign References:
CN103795252A2014-05-14
CN105634289A2016-06-01
US20090034298A12009-02-05
CN1992493A2007-07-04
CN101814838A2010-08-25
Attorney, Agent or Firm:
KANGXIN PARTNERS, P. C. (CN)
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