| 摘要 |
A motor controller according to the invention includes a driving IC and a magnetic sensor. The driving IC receives a driving signal for driving a motor and controls the rotation speed of the motor using the driving signal. The magnetic sensor detects the rotation speed of the motor. The driving IC includes a sensor signal output terminal and a driving signal input terminal. The sensor signal output terminal outputs a sensor signal generated by the driving IC based on a pulse signal from the magnetic sensor. The driving signal input terminal receives the driving signal. The sensor signal output terminal and the driving signal input terminal are connected by a connecting portion. The driving IC rotates the motor at a first rotation speed different from the rotation speed of the motor driven according to the driving signal using the sensor signal input to the driving signal input terminal. |
