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LM5045电流模式的几个疑问

Other Parts Discussed in Thread: LM5045

最近在使用LM5045设计一款全桥DC-DC电源,有几点疑问想请教各位大神

1、为什么软启动时间长了后不能进入同步整流?如果缩短软启时间又不能带足够的容性负载

2、带容性负载连续开关机会出现电流倒灌损坏同步整流管驱动,该如何解决啊,目前我把环路响应调慢一点对抑制倒灌电流有一定帮助,但是环路慢了以后也不能进同步整流。

望各位大神指点指点呀