交错并联移相全桥全负载状态静态特性研究与优化设计

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Abstract Switching phase shift full bridge(PSFB) converter is widely used in midium and high power switching power supplies. Interleaving paralleled converter can increase output power, reduce pulsation of output voltage, and reduce weight of converter. This paper studies the full load range model of soft switching PSFB converter with the use of small signal analysis. Compared the differentsbetween differential sample method and LEM sample method. The paper analyzes low frequency oscillation in simulation and experiment. A resolvent to weaken low frequency oscillation is proposed. The experiment and simulation results show the resolvent is effective.

Key words： Phase shift full bridge small signal modeling full load range differential sample low frequency oscillation

Received: 25 June 2012 Published: 05 November 2014

PACS:	TM614
	TM76

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	Chen Yihan
	Wei Zheng
	Wang Yuncheng
	Gong Chunying

Cite this article:

Chen Yihan,Wei Zheng,Wang Yuncheng等. Interleaving Paralleled Phase Shift Full Bridge Converter Full Load Range Static Characteristics Research and Optimal Design[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 49-56.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2014/V29/I10/49

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