Title:
CIRCUIT AND METHOD FOR CONTROLLING RECTIFIER, AND CIRCUIT INCLUDING THE RECTIFIER
Document Type and Number:
WIPO Patent Application WO/2022/094928
Kind Code:
A1
Abstract:
A circuit and a method for controlling a rectifier, and a circuit including the rectifier are disclosed. The rectifier may comprise: a transformer (T); an inductor (Lm) coupled with a primary winding (Np) of the transformer (T) in parallel; at least one switching component (SR1, SR2) coupled between a secondary winding (Ns1, Ns2) of the transformer (T) and an output of the rectifier. The method may comprise: sensing (S101) a current flowing into a combination of the inductor (Lm) and the primary winding (Np) of the transformer (T); generating (S102) an indication voltage, based on the sensed current; comparing (S103) the indication voltage and a reference voltage; and driving (S104) the at least one switching component (SR1, SR2), based on a comparison result of the indication voltage and the reference voltage. The timing point for turning on/off the switching component (SR1, SR2) may be optimized, so as to reduce the power loss and improve the efficiency.
Inventors:
XIAO HUAJUAN (CN)
LI DONGHAO (CN)
CAO YING (CN)
TIAN JIASHEN (CN)
LI DONGHAO (CN)
CAO YING (CN)
TIAN JIASHEN (CN)
Application Number:
PCT/CN2020/127122
Publication Date:
May 12, 2022
Filing Date:
November 06, 2020
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
XIAO HUAJUAN (CN)
XIAO HUAJUAN (CN)
International Classes:
H02M3/335
Foreign References:
| CN207926445U | 2018-09-28 | |||
| CN111865090A | 2020-10-30 | |||
| CN108988648A | 2018-12-11 | |||
| CN105932881A | 2016-09-07 | |||
| CN109768711A | 2019-05-17 | |||
| KR20170035583A | 2017-03-31 | |||
| US20170085188A1 | 2017-03-23 |
Attorney, Agent or Firm:
ZHONGZI LAW OFFICE (CN)
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