Design and Modeling of LCLCL Resonant Converter for Wide Input Range

Xiangjun Zhang,Xiaohan Zhang, Jiachen Jing,Shanshan Gao,Yueshi Guan,Dianguo Xu

2023 IEEE 6th International Electrical and Energy Conference (CIEEC)（2023）

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摘要

LCLCL resonant converter with characteristics of wide input range and soft switching is proposed in this paper. And this paper analyses the gain characteristics of the converter, establishes the small signal model and designs the digital control scheme. Finally, a 48V/400W prototype is built. The efficiency of the multi-resonant converter is 95.7% under rated conditions.

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关键词

LCLCL,resonant frequency,small signal mode

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