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UCC28950 OUTC與IOUTD 頻率亂掉

Other Parts Discussed in Thread: UCC28950, UCC3895

目前使用UCC28950 做一個輸入40-72V 輸出12V 的D2D模組

在輸入電壓60V-72V 時OUTA與OUTB都為正常,OUTC與OUTD Vgs會有忽大忽小的現象

如下圖 C1:OUTA C2:OUTB C3:OUTC C4:OUTD

是COMP被干擾導致???
還是補償部分需要調整??

感謝