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TUSB2046B做的一个HUB,电脑可以识别,但是在HUB上插上串口什么的,识别不了!

Other Parts Discussed in Thread: TUSB8040A, TPS2042, TUSB2046B

主要的情况是下游端口没有电,或者有电了,电脑上面显示电涌

附件上面是AD9画的原理图

求大神帮忙看看,哪里有问题?

Sheet1.rar