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DRV8837C: 用DRV8837c驱动有刷直流电机

Part Number: DRV8837C

用DRV8837c驱动有刷直流电机,发现电机的反向电动势瞬间会达到30多v,这个时候把DRV8837C打坏了,请问有什么办法避免这种问题?或者需要增加什么电路吗?