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您好，
因为我对零序互感器漏电不懂，您可以告诉我，CN8和DB1是什么元件吗？输入的信号具体是什么样子的吗？
因为OP07C不是轨至轨输入运放，当单电源12V供电时，其允许的共模输入范围是2V~10V，所以我想确认下异常时是否满足其共模电压输入范围。
