| 摘要 |
A microcomputer 17 (signal generating section 24) includes an attenuating section 31, which attenuates a specific frequency component included in an input signal. The attenuating section 31 receives a d-axis current value Id and a q-axis current value Iq, which are actual currents supplied to a motor 12. The attenuating section 31 receives a rotational angular velocity we of the motor 12. The attenuating section 31 changes the specific frequency component to be attenuated based on the input rotational angular velocity we. Then, the microcomputer 17 executes current feedback control for feeding power to the motor 12 based on the d-axis current value Id' and the q-axis current value Iq' that have been attenuated.
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