Title:
PFC STAGGERED FLYBACK FULL BRIDGE-BASED SMART CORRECTION WAVE VOLTAGE CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/120482
Kind Code:
A1
Abstract:
A PFC staggered flyback full bridge-based smart correction wave voltage conversion circuit, comprising: an input unit (10); a PFC boost unit (20); a staggered flyback isolation transformer unit (30), comprising a first switch transistor (Q6), a second switch transistor (Q7), a first transformer (T1), a second transformer (T2), a second rectifying diode (D7) and a third rectifying diode (D8), a first end of a primary winding of the first transformer (T1) and a first end of a primary winding of the second transformer (T2) both being connected to an output terminal of the PFC boost unit (20), a second end of the primary winding of the first transformer (T1) being connected to a drain electrode of the first switch transistor (Q6), a second end of the primary winding of the second transformer (T2) being connected to a drain electrode of the second switch transistor (Q7), and a cathode of the second rectifying diode (D7) and a cathode of the third rectifying diode (D8) forming a staggered flyback isolation transformer unit input terminal after being connected; a DC filter unit (40); and an inverter unit (60). The present conversion circuit can decrease ripple interference and increase output voltage quality.
Inventors:
LIAO ZHIGANG (CN)
Application Number:
PCT/CN2017/079188
Publication Date:
July 05, 2018
Filing Date:
April 01, 2017
Export Citation:
Assignee:
GUANGDONG BESTEK E COMMERCE CO LTD (CN)
International Classes:
H02M3/335; H02M1/44
Foreign References:
| CN206364708U | 2017-07-28 | |||
| CN106787798A | 2017-05-31 | |||
| CN206402113U | 2017-08-11 | |||
| CN104659814A | 2015-05-27 | |||
| CN102856926A | 2013-01-02 | |||
| CN102857132A | 2013-01-02 | |||
| KR101372283B1 | 2014-03-10 |
Attorney, Agent or Firm:
GUANGZHOU NANFENG PATENT AGENCY CO. LTD. (CN)
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