Title:
SWITCH POWER SOURCE FOR ISOLATED OUTPUT ON SINGLE PATH AMONG MULTIPLE PATHS, AND LLC SWITCH CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/213047
Kind Code:
A1
Abstract:
Disclosed in the present invention are a switch power source for isolated output on a single path among multiple paths, and an LLC switch circuit. The switch power source comprises a power factor correction circuit and an LLC switch circuit. The LLC switch circuit comprises a multi-winding transformer and at least two rectification loops, wherein an input end of each rectification loop is connected to a secondary winding of the multi-winding transformer; an output end of each rectification loop is connected to an input end of a feedback circuit; a plurality of feedback circuits are connected to a control circuit by means of a switching circuit; the switching circuit controls one of the plurality of feedback circuits to connect to the control circuit; an output end of the control circuit is connected to an input end of the switch circuit; and the switch circuit is connected to an output end of the power factor correction circuit and a primary winding of the multi-winding transformer. In the present solution, a power source can realize multi-path and isolated output, can provide stable and high-power energy, and has a low load adjustment rate; and only one control circuit and one switch circuit are needed, such that compared with products of the same type, the present invention has a reduced product volume and reduced product costs.
Inventors:
LI QIJUN (CN)
WEI DALUN (CN)
LUO WEI (CN)
WEI DALUN (CN)
LUO WEI (CN)
Application Number:
PCT/CN2022/124261
Publication Date:
November 09, 2023
Filing Date:
October 10, 2022
Export Citation:
Assignee:
INNOLCON MEDICAL TECHNOLOGY SUZHOU CO LTD (CN)
International Classes:
H02M5/10; H02H1/00; H02H3/08; H02H7/125; H02M1/14; H02M1/36; H02M1/42; H02M7/219; H02M7/23
Foreign References:
| CN114793070A | 2022-07-26 | |||
| CN111082667A | 2020-04-28 | |||
| CN102044983A | 2011-05-04 | |||
| CN104753357A | 2015-07-01 | |||
| CN103813589A | 2014-05-21 | |||
| US20120106206A1 | 2012-05-03 |
Attorney, Agent or Firm:
NANJING IPLEADER INTELLECTUAL PROPERTY AGENCY FIRM (CN)
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