Approximate Analysis of Resonant LLC DC-DC Converter
Approximate Analysis of Resonant LLC DC-DC Converter
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DOI：
10.1109/tpel.2011.2142009
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发表时间：
2011-04
影响因子：
6.7
通讯作者：
G. Ivensky;S. Bronshtein;A. Abramovitz
中科院分区：
文献类型：
--
作者：
G. Ivensky;S. Bronshtein;A. Abramovitz
本文提出了一种近似分析LLC谐振变换器与电容滤波器工作在上下谐振。整流器的等效交流电阻模型的有效性，以及连续导通模式的建议。直流电压转换比，然后得到使用基波近似分析方法。在此基础上，提出了LLC变换器的设计方案和设计准则。仿真和实验验证了理论的正确性。
This paper presents an approximate analysis of LLC resonant converter with capacitive filter operating above and below resonance. An equivalent ac resistance model of the rectifier valid for discontinuous as well as continuous conduction modes is proposed. The dc voltage conversion ratio is then obtained using the fundamental harmonic approximation analysis method. Based on the analysis, LLC converter design plots and guidelines are suggested. The theory is verified by simulation and experiment.