在量产时,带载后发生0.5%左右概率的炸机,超前臂滞后臂的4个mos管GSD都被击穿短路,更换管子后又可以正常运行,目前故障无法复现,请问应该从哪方面入手解决问题
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Hi
测试一下正常的板子,看一下驱动信号?(传上来看一下,看是否存在上下管同臂导通的趋势)。
HI
有没有确认驱动信号? 是否也是更换MOS后就不再烧板子了?