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求助关于BUCK电路断载波形

Other Parts Discussed in Thread: TPS5430

各位专家号,最近用TPS5430做了个降压电路,发现在负载断开瞬间的波形有向上的过冲现象,这种是否是电感特性导致,

 负载突然断,电感电流不能突变,产生电压尖峰。这种现象怎么处理?我加了钽电容试了下,但是效果不大