Title:
SWITCH POWER SUPPLY CIRCUIT USED FOR THREE-PHASE INPUT
Document Type and Number:
WIPO Patent Application WO/2019/196782
Kind Code:
A1
Abstract:
Disclosed in the present invention is a switch power supply circuit used for three-phase input, comprising a first input rectification circuit, a first capacitor, a Boost feedback drive control circuit, and one or more Boost conversion circuits; the first input rectification circuit charges the first capacitor to form a first loop; in one Boost circuit, a second input rectification circuit charges a second capacitor to form a second loop; a first inductor, the second capacitor, and a first switch element form a third loop in which the second capacitor charges the first inductor; the first inductor, the second capacitor, the first capacitor, and a first output rectification circuit form a fourth loop in which the first capacitor is charged by means of the first output rectification circuit after the voltage on the first inductor is superimposed with the voltage on the second capacitor. The invention has the advantages of high efficiency, high reliability, low EMI noise, strong anti-interference and anti-surge capabilities, and so on.
Inventors:
LI RENHONG (CN)
SHEN ZHUO (CN)
SHEN ZHUO (CN)
Application Number:
PCT/CN2019/081712
Publication Date:
October 17, 2019
Filing Date:
April 08, 2019
Export Citation:
Assignee:
SHANGHAI TUITUO TECH CO LTD (CN)
International Classes:
H02M7/217; H02M1/42; H02M1/44; H02M3/158
Foreign References:
| CN108494274A | 2018-09-04 | |||
| CN108448888A | 2018-08-24 | |||
| CN101394091A | 2009-03-25 | |||
| CN201091060Y | 2008-07-23 | |||
| CN101136584A | 2008-03-05 |
Attorney, Agent or Firm:
SEVEN SEAS IP AGENT SHANGHAI (CN)
Download PDF: