由于试验中发现电机三个相电流的过流值均不同,我想分别检测电机的三相电流,任一相电流过流都封掉PWM,采用DC模块发出TZ信号封波,三个Comparator的输出,DC模块只能比较两相,另外一相怎么办?直接硬件引到TZ端口吗?有没有更好的办法?
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由于试验中发现电机三个相电流的过流值均不同,我想分别检测电机的三相电流,任一相电流过流都封掉PWM,采用DC模块发出TZ信号封波,三个Comparator的输出,DC模块只能比较两相,另外一相怎么办?直接硬件引到TZ端口吗?有没有更好的办法?