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TMS320F28377D比较器CMPSS 可以比较负电压吗

Other Parts Discussed in Thread: TMS320F28377D

想用TMS320F28377D做电容电流控制,但是信号包含负电压,由于二极管压降的存在,钳位电路只能将负压控制在-0.7V以内,这样会损坏28377D吗?

有没有什么好的解决方案呢?谢谢!