单板放入电池簇系统中做绝缘耐压测试。测试通过后发现单板异常发热,拆下来后发现C6~C16采样电路中的100Ω采样电阻烧毁了,芯片的VC16和BAT引脚对VSS短路。
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单板放入电池簇系统中做绝缘耐压测试。测试通过后发现单板异常发热,拆下来后发现C6~C16采样电路中的100Ω采样电阻烧毁了,芯片的VC16和BAT引脚对VSS短路。