高升压增益软开关DC-DC变换器

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Abstract Based on soft-switched boost converter, a soft-switched DC-DC converter with high voltage gain is proposed by introducing a Flyback-cell with coupled inductor. The proposed converter achieves high voltage gain, reduces switch stress, and recycles the energy stored in the transformer leakage inductor. Thus the proposed converter improves the efficiency of converter and reduces the cost by using low voltage stress MOSFET. Zero voltage switch (ZVS) turn-on of switches and the zero current switch (ZCS) turn-off of diodes are achieved, which improve the efficiency of the converter. The operating characteristics of converter, the duty ratio loss of converter, and the stress of switching devices are analyzed in this paper. Experimental results of a 160W prototype verify the analysis results of the proposed converter.

Key words： Boost-Flyback converter high gain soft-switching coupled transformer DC-DC converter

Received: 30 June 2014 Published: 28 July 2016

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TM46

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	Zhou Xiang
	Xu Jianping
	Chen Zhangyong

Cite this article:

Zhou Xiang,Xu Jianping,Chen Zhangyong. Soft-Switched DC-DC Converter with High Voltage Gain[J]. Transactions of China Electrotechnical Society, 2016, 31(14): 156-164.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I14/156

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