辅助电流有源调整的新型ZVS全桥变换器

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Abstract A novel zero-voltage-switching (ZVS) phase-shift full-bridge converter with self- regulating auxiliary current is proposed. With a paralleled active auxiliary circuit, this converter can achieve ZVS of lagging-leg switches in full load range. The auxiliary circuit that features simple control of the auxiliary switches has no effect on the main power transferring path. Auxiliary energy stored for ZVS of lagging-leg can be regulated by the load current, which decreases conduction loss of the auxiliary circuit. In this paper, the principle of the proposed converter is discussed in detail and further simplification of the proposed topology is suggested. The design method of key parameters is carefully depicted. Finally, the experimental results from a 1 kW/54V, 100 kHz prototype are presented to confirm the operation, validity, and features of the proposed converter.

Key words： Zero-voltage-switching (ZVS) full-bridge converter self regulating

Received: 11 May 2012 Published: 27 June 2014

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TM46

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	Articles by authors
	Chen Zhong
	Liu Shasha
	Wang Yang
	Shi Liangchen

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Chen Zhong,Liu Shasha,Wang Yang等. A New ZVS Full Bridge Converter with Active-Regulating Auxiliary Current[J]. Transactions of China Electrotechnical Society, 2014, 29(4): 1-9.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I4/1

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