The Modified FHA and Simplified Time-doamin Analysis methodologies for LLC Resonant Converter

Yu Zuo,Haowei Niu,Ruihong Zhang,Xuewei Pan

2021 IEEE 12th Energy Conversion Congress & Exposition - Asia (ECCE-Asia)（2021）

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摘要

This paper proposed two modified analysis methodologies based on the fundamental harmonics approximation (FHA) and Simplified Time Domain Analysis (STDA). The equivalent output resistance of resonant tank in discontinuous conduction mode (DCM) is derived, and this modified FHA (MFHA) shows more accuracy than FHA in DCM, especially when the working frequency is far away from series resonant frequen...

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关键词

Voltage gain model,LLC resonant converter,discontinuous conduction mode (DCM)

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