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| Design and Simulation of A New Type of Buck Soft-Switching Circuit |
| Jia Guixi, Zhang Chunyan, Xiao Youwen, Zhao Huichao |
| Tianjin University Tianjin 300072 China |
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Abstract Buck converter has been found widely application in power electronics and power drives. In order to decrease its switching loss and noise in the operation, this paper proposes a novel soft-switching topology of Buck converter, and the resonant circuit is paralleled with the main switch, which makes the resonant process free from the effect of load. Before the conduction of the main switch, the auxiliary switch conducts, and zero-voltage turn on and turn off the main and auxiliary switches are realized. This paper analyzes the process of soft-switching in detail, and the resonant parameters and minimum duty cycle of auxiliary switch are deduced. The simulation shows the validity of the design.
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Received: 01 November 2010
Published: 19 March 2014
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[1] Oh I H. A soft-switching synchronous buck converter for zero voltage switching (ZVS) in light and full load conditions[C]. Proceedings of the Annual IEEE, Applied Power Electronics Conference and Exposition, 23rd2008: 1460-1464.
[2] Chuang Y C, Ke Y L. A novel high-efficiency battery charger with a buck zero-voltage-switching resonant converter[J]. IEEE Transactions on Energy Conversion, 2007, 22(4): 848-854.
[3] Zhang Y Q, Sen P C, Liu Y F. A novel zero voltage switched (ZVS) buck converter using coupled inductor[C]. Proceedings of the Canadian Conference on Electrical and Computer Engineering, Canada, 2001: 357-362.
[4] 王兆安, 黄俊.电力电子技术(第4版)[M].北京:机械工业出版社, 2000.
[5] Ma Y, Wu X K, Xie X G, et al. A new ZVS-PWM buck converter with an active clamping cell[C]. Proceedings of the 33rd Annual Conference of the IEEE Industrial Electronics Society, Taipei, 2007: 1592-1597.
[6] de Freitas L C, Coelho Gomes P R. A high-power high-frequency ZCS-ZVS-PWM buck converter using a feedback resonant circuit[J]. IEEE Transactions on Power Electronics, 1995, 10(1): 19-24. |
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2012, Vol. 27 
