MOTOR CONTROL DEVICE AND POWER STEERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a motor control device and a power steering device capable of enhancing current detection accuracy even on the occurrence of a current ripple by a pulse shift.SOLUTION: When a switching timing difference in interphase PWM duty signals becomes smaller than a first predetermined value, pulse shift control is performed in such a manner that the switching timing difference in the PWM duty signals becomes a second predetermined value or greater. Also, a correction amount of the phase of the PWM duty signal switching timing on the other side of DC bus current detection timing is made smaller than the correction amount of the PWM duty signal phase.