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求助各位大侠:充电器插入瞬间整个系统电源出现了20ns-30ns的高电压(20v-30V)脉冲,这损坏了一些IC



如题:充电器(充电器9V,电池8.4V)插入瞬间,整个系统电源(IO电源)出现了20ns-30ns的高电压(20v-30V)脉冲,这会损坏一些IC的接口,各位大侠有遇到过类似问题吗?有什么好的建议,谢谢了!