DocumentCode
1556716
Title
Efficiency improvement for SR forward converters with LC snubber
Author
Jinno, Masahito
Author_Institution
Dept. of Electr. Eng., I-Shou Univ., Ta-Hsiang, Taiwan
Volume
16
Issue
6
fYear
2001
fDate
11/1/2001 12:00:00 AM
Firstpage
812
Lastpage
820
Abstract
A novel circuit is proposed to alleviate the problems associated with using synchronous rectifiers in forward converters. The proposed circuit employed an LC snubber in the primary side of the converter as opposed to conventional schemes of employing an additional active switch to improve the efficiency. For the proposed forward converter with 40 W output, 91% efficiency at 3.3 V and 4 A output is obtained. In this paper, the circuit operation of this converter is described with the aid of simulation waveforms and the design criteria are also established
Keywords
DC-DC power convertors; power supplies to apparatus; rectifying circuits; snubbers; 3.3 V; 4 A; 40 W; 91 percent; LC snubber; circuit operation; efficiency improvement; low output voltage power supplies; primary side; simulation waveforms; synchronous rectifier forward converters; Capacitors; Diodes; Electromagnetic interference; Inductance; MOSFET circuits; Rectifiers; Snubbers; Strontium; Surges; Switches;
fLanguage
English
Journal_Title
Power Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0885-8993
Type
jour
DOI
10.1109/63.974379
Filename
974379
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