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降压型DC-DC 外部寄生电感 VFB SW波形异常



最近在不同的板子验证一款降压型DC-DC,焊接上去后,功能完全正常,但在其他演示板上通过插座放入后,SW端输出波形异常,观测反馈电压VFB一直在抖动,插座的寄生电感略大,请问大神们能给些建议避免由于寄生电感导致的此类问题吗?