MOTOR DRIVE CONTROL DEVICE AND MOTOR DRIVE CONTROL METHOD
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Oct 27, 2022
filing date -
Oct 27, 2022
priority date (Note) -
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Abstract
To provide a motor drive control device and a motor drive control method capable of achieving high motor drive efficiency and suppressing the occurrence of vibration. A motor drive control device includes a control circuit unit configured to output a drive control signal (Sd) for PWM-driving a motor, and a motor drive unit configured to drive the motor based on the drive control signal (Sd). The control circuit unit adjusts a PWM frequency of the drive control signal (Sd) such that the PWM frequency is in a predetermined range and the number of PWM pulses per one cycle of an electrical angle of the motor is a desired value in a first rotation speed range of predetermined rotation speed ranges of the motor, and the PWM frequency is in the predetermined range in a rotation speed range other than the first rotation speed range.
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