Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.04a
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- Pages.262-265
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- 2003
A New ZVT-PWM Converter using Active Resonant Snubber
액티브 공진 스너버를 이용한 새로운 ZVT-PWM 컨버터
- Park, J.M. (Kyungnam University) ;
- Yoon, Y.T. (Kyungnam University) ;
- Kim, C.Y. (Kyungnam University) ;
- Kim, D.W. (Kyungnam University) ;
- Park, S.W. (Hanil Control) ;
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Mun, S.P.
(Kyungnam University)
;
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Suh, K.Y.
(Kyungnam University)
- Published : 2003.04.24
Abstract
In this paper, a new active snubber circuit that overcomes most of the drawbacks of the normal "zero voltage transition pulse width modulation" (ZVT-PWM) converter is proposed to contrive a new family of ZVT- PWM converter. A converter with the proposed snubber circuit can also operate at light load conditions. A design procedure of the proposed active snubber circuit is also presented. Additionally, at full output power in the proposed soft switching converter, the main switch loss is about 27[%] and the total circuit loss is about 36[%] of that in its counterpart hard switching converter, and so the overall efficiency, which is about 91[%] in the hard switching case, increases to about 97[%].
Keywords