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询移相全桥且不带次级同步整流的控制芯片

Other Parts Discussed in Thread: UCC28951, UCC28950, UCC3895

我们之前在用UCC28950,现在新项目不需要次级同步整流,请问有没有比UCC28950更简单更便宜的移相全桥控制芯片?另外我看到UCC28951也是移相全桥带次级同步整流,它跟UCC28950有什么区别?