Stepping motor failure detection circuit, stepping motor drive device, stepping motor drive system

摘要

PROBLEM TO BE SOLVED: To provide a stepping motor failure detection circuit for which a logic circuit measuring detection timing is not required.SOLUTION: The stepping motor failure detection circuit 400, having a comparator circuit 450 for detecting failure in a stepping motor by comparing a detected signal to a failure determination value, includes an integration circuit 420 on the input side of the comparator circuit.