Title:
SMART CORRECTION WAVE VOLTAGE CONVERSION CIRCUIT BASED ON PFC, FULL BRIDGE, AND HALF BRIDGE
Document Type and Number:
WIPO Patent Application WO/2018/126554
Kind Code:
A1
Abstract:
A smart correction wave voltage conversion circuit based on PFC, full bridge, and half bridge, comprising: an input unit (10), a PFC boost unit (20), a full bridge isolation transformation unit (30), and a phase inversion unit (40). The full bridge isolation transformation unit (30) comprises a first switch transistor (Q6), a second switch transistor (Q7), a sixth transistor (Q8), a seventh switch transistor (Q9), a transformer (T1), a first diode (D5), a second diode (D6), and a wave filter inductor (L3); a source electrode of the sixth switch transistor (Q8) is connected to a first end of a primary winding of the transformer (T1), a drain electrode of the second switch transistor (Q7) is connected to a second end of the primary winding of the transformer (T1), a source electrode of the first switch transistor (Q6) is connected to the second end of the primary winding of the transformer (T1), a drain electrode of the seventh switch transistor (Q9) is connected to the first end of the primary winding of the transformer (T1), and a middle tap of the secondary winding of the transformer (T1) is connected to a rear end ground. The present circuit can improve the power factor value and the output voltage quality.
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Inventors:
LIAO ZHIGANG (CN)
Application Number:
PCT/CN2017/080980
Publication Date:
July 12, 2018
Filing Date:
April 19, 2017
Export Citation:
Assignee:
GUANGDONG BESTEK E COMMERCE CO LTD (CN)
International Classes:
H02M5/458
Foreign References:
| CN206364711U | 2017-07-28 | |||
| CN106787806A | 2017-05-31 | |||
| CN102055348A | 2011-05-11 | |||
| CN102969902A | 2013-03-13 | |||
| CN103595249A | 2014-02-19 | |||
| US20040012343A1 | 2004-01-22 | |||
| CN205070799U | 2016-03-02 |
Attorney, Agent or Firm:
GUANGZHOU NANFENG PATENT AGENCY CO. LTD. (CN)
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