不对称半桥dc2fdc变换器研究

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1、目录摘要····················································································································IAbstract·············································································································II第1章绪论··················································

2、·····················································11.1引言·········································································································11.2软开关技术·····························································································11.3不对称半桥变换器·················

3、································································41.4课题的研究意义及国内外研究现状······················································61.4.1课题的研究意义···············································································61.4.2国内外研究现状·····················································

4、··························71.5课题的研究内容·····················································································9第2章不对称半桥工作原理分析·································································112.1不对称半桥稳态工作过程分析···························································112.2不对称半桥开关过程分析

5、···································································122.3ZVS实现条件······················································································212.3.1负载电流·························································································212.3.2死区时间设置·················

6、································································222.4占空比丢失分析···················································································232.5输出整流管的电压应力·······································································242.6实现ZVS的两种方式···································

7、·······································252.6.1负载电流ZVS方式········································································252.6.2激磁电流ZVS方式········································································252.6.3ZVS负载范围及