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全桥LLC变换器短路电流控法(II)——损耗分析及实验研究

, PP. 234-241

Keywords: 软开关,全桥变换器,LLC变换器,短路,相平面分析

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Abstract:

基于相平面分析法,详细分析了两种全桥LLC变换器在短路情况下开关管的控制方法,给出了短路电流和开关管的应力定量计算。相比传统方案,本文提出方法可以有效地限制短路的输出电流并显著降低开关管电流应力。最后通过仿真和样机实验,表明了理论分析的可行性与正确性。

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