| 摘要 |
An electronic device includes a motor, a detector, and a controller. The detector detects a rotational speed of the motor. The controller selects a gain from a plurality of gains based on the rotational speed and controls rotation of the motor through feedback control. The controller uses a first gain from startup of the motor until the motor initially reaches a predetermined rotational speed after the startup. The controller switches to a second gain smaller than the first gain when the motor initially reaches the predetermined rotational speed after the startup, and uses the second gain in a predetermined range with respect to the rotational speed. The predetermined range is defined between a lower limit smaller than the predetermined rotational speed and a higher limit larger than the predetermined rotational speed.
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