LLC串联谐振变换器的一种新的精确设计方法

INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference Pub Date : 2006-12-04 DOI:10.1109/INTLEC.2006.251606

Teng Liu, Ziying Zhou, Aiming Xiong, J. Zeng, Jianping Ying

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引用次数: 98

摘要

本文提出了一种基于时域分析的LLC串联谐振变换器精确分析方法，并给出了明确的设计指导方针。有限责任公司谐振变换器由于具有结构简单、效率高、开关频率能力强等特点，得到了广泛的应用。为了实现优化设计并提出明确的设计指导方针，了解其直流增益特性和参数对效率的影响非常重要。传统的基于基谐波近似的分析方法不能给出准确的结果。最后，根据提出的设计准则，构建了效率为96%的MHz LLC串联谐振变换器样机并进行了测试。实验结果验证了分析方法和提出的设计准则

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A Novel Precise Design Method for LLC Series Resonant Converter

In this paper, a novel precise analysis method based on time domain analysis for LLC series resonant converter is proposed and a clear design guide line is given. Because LLC resonant converter has simple structure, high efficiency and high switching frequency capability, it is widely used nowadays. To achieve an optimized design and propose a clear design guide line, understanding its DC gain characteristic and parameters effect on efficiency is very important. Traditional analysis method based on fundamental-harmonic approximation can not give accurate results. Finally, following proposed design guide line, a prototype of MHz LLC series resonant converter with 96% efficiency has been built and tested. Experimental results testified the analysis method and proposed design guide line

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INTELEC 06 - Twenty-Eighth International Telecommunications Energy Conference

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