一种新型非谐振型软开关交错并联Boost电路

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Abstract A novel interleaved Boost converter with non-resonant zero-voltage-transition (ZVT) is proposed in this paper. Based on the conventional interleaved Boost converter, an auxiliary circuit composed of 1 inductor, 2 capacitors, 1 active power switch and 4 diodes is added. Main switches turn ON and OFF with ZVT, while auxiliary switch turns ON with zero-current-transition (ZCT) and OFF partly with ZVT, so as to reduce the switching losses and raise conversion efficiency. Soft-switching in wide operation range can be guaranteed, so can the simple control method. The converter can work in continuous current mode (CCM), and no extra current stress is added to the main switches. With sharing some auxiliary devices, the utilization of auxiliary circuit is improved, thus the size and cost are reduced. In addition, dv/dt and di/dt are also reduced, and switching noises are suppressed. The circuit configuration and operation principle are presented. Major parameters of auxiliary circuit are optimized. Experimental results are also given to verify the theoretical analysis.

Key words： Interleaved Boost converter non-resonant zero-voltage-transition sharing of auxiliary circuit

Received: 05 July 2015 Published: 27 February 2017

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TM46

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	Articles by authors
	Wei Li
	Liu Shuai
	You Weiyu
	Zhang Yicheng
	Yao Yongtao

Cite this article:

Wei Li,Liu Shuai,You Weiyu等. A Novel Interleaved Boost Converter with Non-Resonant Soft-Switching[J]. Transactions of China Electrotechnical Society, 2017, 32(3): 172-183.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I3/172

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