Two-phase interleaving configuration of the LLC resonant converter - Analysis and experimental evaluation
Two-phase interleaving configuration of the LLC resonant converter - Analysis and experimental evaluation
复制标题
LLC 谐振转换器的两相交错配置 - 分析和实验评估
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
J. Böcker
中科院分区：
文献类型：
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作者：
H. Figge;T. Grote;F. Schafmeister;N. Fröhleke;J. Böcker
LLC谐振转换器近年来已经变得相当流行，并且越来越多地用于成本有效以及高性能电源内的DC-DC转换器。由于在高输出功率和低输出电压的情况下，它通常是有益的，使用LLC转换器，本文研究了负载分配问题的两个LLC转换器并联连接，并与交错驱动信号操作。LLC谐振电路的所有三个无源元件的值偏差被认为是最坏的情况下，突出显示。此外，一个简单而实用的解决方案，适用于高功率服务器电源的负载分配问题，包括对原型的测量，以支持理论分析。
The LLC resonant converter has become quite popular in recent years and is more and more used for DC-DC converters within cost effective as well as high performance power supplies. Since in case of high output power and low output voltage it is typically beneficial to use paralleled converters, this paper investigates the load sharing issue of two LLC converters connected in parallel and operated with interleaved driving signals. Value deviations of all the three passive components of the LLC resonant circuit are considered and the worst case scenarios are highlighted. Moreover a simple and practical solution to the load sharing issue applicable to a high power server PSU is presented, including measurements on a prototype to support the theoretical analysis.