基于整流侧辅助调控的交错并联LLC谐振变换器

doi:10.19595/j.cnki.1000-6753.tces.200173

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Abstract The interleaving technique is an effective method to improve the output capability of the power module. Small differences in parameters of the resonant cavity can cause serious uneven current in the interleaved LLC resonant converter. In this paper, by introducing an active switch in the rectifier of LLC resonant converters, a hybrid rectifier was built, and the auxiliary control on the rectifier was used to actively compensate the voltage gain of the module with smaller output current, thereby achieving the current sharing control of the interleaved LLC resonant converter. The working principle and characteristics of the LLC resonant converter with hybrid rectifier were analyzed in detail, and different implementations of the current sharing circuit were given according to specific applications. Finally, the experimental results verify the feasibility and effectiveness of the proposed current sharing control method.

Key words： Interleaved parallel LLC resonant converter current sharing hybrid rectification

Received: 21 February 2020

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TM46

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	Articles by authors
	Sun Jiaxiang
	Wu Hongfei
	Tang Xinxi
	Yang Fan
	Xing Yan

Cite this article:

Sun Jiaxiang,Wu Hongfei,Tang Xinxi等. Interleaved LLC Resonant Converter with Auxiliary Regulation of Rectifier[J]. Transactions of China Electrotechnical Society, 2021, 36(10): 2072-2080.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.200173 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I10/2072

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