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H桥驱动变压器,输出波形不是正弦波
1、原理图驱动部分,用SPWM驱动H桥 [url=//bbs.21ic.com/data/attachment/album/202104/07/104154mnu4dtoy43klurk0.jpg][img]//bbs.21ic.com/data/attachment/album/202104/07/104154mnu4dtoy43klurk0.jpg[/img][/url] 2、现象 H桥输出波形如图: [url=//bbs.21ic.com/data/attachment/album/202104/07/104334anyidnpi2kid6ddp.jpg][img]//bbs.21ic.com/data/attachment/album/202104/07/104334anyidnpi2kid6ddp.jpg[/img][/url] 加上变压器后H桥的输出波形 [url=//bbs.21ic.com/data/attachment/album/202104/07/104321i7oqh8u7bz8bou2h.jpg][img]//bbs.21ic.com/data/attachment/album/202104/07/104321i7oqh8u7bz8bou2h.jpg[/img][/url] 求大佬指点,为什么会这样?并且变压器的输出不是正弦波
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