A novel low-voltage/high-current ZCS-PWM DC-DC converter with asymmetrical auxiliary edge-resonant lossless snubber

被引：1
|
作者：
Mishima, Tomokazu [1 ]
Hiraki, Eiji [1 ]
Tanaka, Toshihiko [1 ]
Nakaoka, Mutsuo [1 ]
机构：
[1] Kure Coll Technol, Dept Elect Engn & Informat Sci, Kure Shi, Hiroshima 7378506, Japan
来源：
2007 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6 | 2007年
关键词：
D O I：
10.1109/PESC.2007.4342081
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel zero current soft-switching PWM half-bridge DC-DC converter topology is proposed in this paper. The newly proposed converter consists of a PWM-controlled half-bridge inverter and a current doubler rectifier linked with a high-frequency transformer. In order to attain the wide range of soft switching operation in the high voltage/low current primary side inverter, asymmetrical lossless snubbers composed by an actively-switched capacitor and lossless inductors are employed in the half-bridge arm, providing Zero Current Switching (ZCS) that is less sensitive to the magnitude of the input current. The operation characteristics of the proposed DC-DC converter are described, and its feasibility is demonstrated with simulation and experimental results.
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页码：748 / 753
页数：6
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