LLC半桥式谐振变换器参数模型与设计

被引：35

作者：

王镇道 ^{[1
]}

赵亚魁 ^{[1
]}

章兢 ^{[2
]}

吴旭 ^{[1
]}

易峰 ^{[3
]}

机构：

[1] 湖南大学物理与微电子科学学院

[2] 湖南大学电气与信息工程学院

[3] 中国电子科技集团公司第研究所

来源：

电工技术学报 | 2012年 / 27卷 / 12期

关键词：

LLC谐振变换器; 开关频率; 软开关; DC-DC变换器;

D O I：

10.19595/j.cnki.1000-6753.tces.2012.12.008

中图分类号：

TM461.3 [电子整流器];

学科分类号：

摘要：

根据LLC拓扑结构工作原理,建立了LLC半桥式谐振变换器的数学模型。基于最优转换效率和宽负载变化范围的转换关系,根据模型确定了漏感、励磁电感和谐振电容,并设计了一款LLC半桥式谐振变换器,开关频率提高到兆赫兹级,在轻载和满载时效率均达到94%,功率密度达到500W/in3,实验结果表明了模型和参数设计的正确性。

引用

页码：51 / 55

页数：5

共 11 条

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