This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

UCC28950效率低

Other Parts Discussed in Thread: UCC28950

我做了一款移相全桥电源最大输出1000W,效率一直是86%,提升不了。输入DC200-500V,输出28V35A。测试过波形确实已经实现了零电压开启,零电压关断,可是效率还是不高,说明一下,没有用同步整流。测试上下桥的IGBT的CE波形,发现竟然有重合,说明有直通现象,可是我的死区设置已经达到1us,UCC28950最大死区1.2us。跪求高手解答