基于移相全桥的多模块ac2fdc并联变换器分析

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1、基于移相全桥的多模块AC/DC并联变换器研究目录第1章绪论··························································································11.1课题背景·····················································································11.2软开关技术简介············································································2

2、1.3数字控制技术···············································································31.4开关电源并联系统简介···································································41.5本课题主要研究内容······································································6第2章移相全桥零电压变换器分析································

3、······························72.1移相全桥变换器的工作原理·····························································72.1.1超前桥臂的软开通实现·····························································82.1.2滞后桥臂的软开通实现·····························································82.1.3实现ZVS的条件·························

4、············································92.2基本移相全桥变换器分析································································92.2.1基本移相全桥工作过程分析·······················································92.2.2占空比丢失现象····································································132.2.3整流方式············

5、·································································132.3带饱和电感的移相全桥变换器分析··················································142.3.1饱和电感的特性····································································142.3.2带饱和电感的移相全桥变换器工作过程分析································152.4带饱和电感的移相全桥变换器各参数计算··

6、·······································162.4.1变压器原副边匝比计算···························································172.4.2饱和电感临界电流Ic的计算·····················································172.4.3死区时间的确定····································································172.4.4超前桥臂谐振电容计算·············

7、··············································172.4.5滞后桥臂谐振电容与饱和电感的计算·········································182.4.6滞后桥臂死区时间的计算························································182.4.7丢失占空比及开关频