Title:
PFC INTERLEAVED FLYBACK FULL BRIDGE BASED INTELLIGENT SINE-WAVE VOLTAGE CONVERSION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/120483
Kind Code:
A1
Abstract:
A PFC interleaved flyback full bridge based intelligent sine-wave voltage conversion circuit, comprising an input unit (10); a PFC boosting unit (20); an interleaved flyback isolating transformation unit (30) comprising a first switching tube (Q6), a second switching tube (Q7), a first transformer (T1), a second transformer (T2), a second rectifying diode (D7), and a third rectifying diode (D8); and a DC filter unit (40) comprising a first CBB filter capacitor (C3), a second CBB filter capacitor (C4) and a filter inductor (L3), the front end of the filter inductor being connected with the front end of the first CBB filter capacitor, the rear end of the filter inductor being connected with the front end of the second CBB filter capacitor, the rear end of the first CBB filter capacitor and the rear end of the second CBB filter capacitor being both connected with the ground at the rear end, the front end of the filter inductor being connected with the output end of the interleaved flyback isolating transformation unit, and the rear end of the filter inductor being used as an output end of the DC filter unit; and an inverter phase-inversion unit (60). The intelligent sine-wave voltage conversion circuit can reduce ripple interference and improve the quality of output voltage.
Inventors:
LIAO ZHIGANG (CN)
Application Number:
PCT/CN2017/079189
Publication Date:
July 05, 2018
Filing Date:
April 01, 2017
Export Citation:
Assignee:
GUANGDONG BESTEK E COMMERCE CO LTD (CN)
International Classes:
H02M5/458; H02M1/42
Foreign References:
| CN206402113U | 2017-08-11 | |||
| CN106533193A | 2017-03-22 | |||
| CN105006957A | 2015-10-28 | |||
| CN104022661A | 2014-09-03 | |||
| US20110267856A1 | 2011-11-03 |
Attorney, Agent or Firm:
GUANGZHOU NANFENG PATENT AGENCY CO., LTD. (CN)
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