多相LLC变换器的交错和负荷分担方法

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2013-03-17 DOI:10.1109/APEC.2013.6520485

Zhiyuan Hu, Ya-jie Qiu, Yanfei Liu, P. Sen

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引用次数: 26

摘要

交错频控LLC谐振变换器由于谐振元件的容差，会遇到负载分担问题。本文在LLC级中采用全波和半波开关控制电容器(SCCs)来解决这一问题。通过使用谐振电容作为控制变量，即使所有LLC级在相同的开关频率下同步，也可以调制输出电流。开发了设计程序。建立了600W的样机以验证其可行性。

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An interleaving and load sharing method for multiphase LLC converters

Interleaving frequency-controlled LLC resonant converters will encounter load-sharing problem due to the tolerance of the resonant components. In this paper, full-wave and half-wave switch-controlled capacitors (SCCs) are used in LLC stages to solve this problem. By using resonant capacitance as a control variable, the output current can be modulated even when all the LLC stages are synchronized at the same switching frequency. A design procedure is developed. A 600W prototype is built to verify the feasibility.

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2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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