Title:
VOLTAGE DOUBLING OUTPUT CIRCUIT OF FORWARD/FLYBACK CONVERTER
Document Type and Number:
WIPO Patent Application WO/2022/110441
Kind Code:
A1
Abstract:
Disclosed in the present invention is a voltage doubling output circuit of a forward/flyback converter, being applied to a switching power supply product having low voltage input and high voltage output. The voltage doubling output circuit performs voltage doubling on the voltage of a transformer winding and then supplies the voltage to an output end, thereby being capable of effectively reducing the number of turns of the transformer winding, and reducing the design difficulty of a transformer. A capacitor C3 in the present invention serves as an energy storage device bridged between a transformer winding port and an output port, and forms a loop for connecting the transformer and the output port when the transformer is in a flyback working process, such that the transformer also can supply energy to the output port when being in a flyback working state, thereby effectively reducing the ripple voltage of the output end.
Inventors:
JIN LIANG (CN)
ZHENG MANPENG (CN)
FENG GANG (CN)
ZHENG MANPENG (CN)
FENG GANG (CN)
Application Number:
PCT/CN2020/139379
Publication Date:
June 02, 2022
Filing Date:
December 25, 2020
Export Citation:
Assignee:
MORNSUN GUANGZHOU SCI & TECH (CN)
International Classes:
H02M3/335
Foreign References:
| CN110995003A | 2020-04-10 | |||
| CN105391287A | 2016-03-09 | |||
| CN207010551U | 2018-02-13 | |||
| CN110932557A | 2020-03-27 | |||
| US20120287678A1 | 2012-11-15 |
Attorney, Agent or Firm:
GUANGZHOU ZHIYOU PATENT & TRADEMARK AGENCY CO., LTD. (CN)
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