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一种改进型CLC电流型谐振逆变器

, PP. 125-129

Keywords: 电流型谐振逆变器,并联栅漏极电容,CLC负载匹配,容性工作范围

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Abstract:

针对电流型谐振逆变器中串联二极管反向过电压和负载槽路参数如何合理匹配的问题,提出了一种改进型CLC电流型谐振逆变器拓扑、通过串联缓冲电感、并联栅漏极电容,功率器件实现零电流开通、零电压关断,抑制了二极管产生浪涌电流;通过开关频率的改变以及三阶CLC负载中电容比例的定量分析,权衡输出电流与负载线圈支路电流大小,确定小容性的工作范围和输出有功功率最大值。试验结果证明所建拓扑的正确性、定量分析的有效性。

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