| 摘要 |
This DC-brushless-motor control device, which supplies a current to a winding of a stator of a three-phase DC brushless motor for rotating a suction fan of a suction device, is provided with: a control unit for controlling the rotational frequency of a rotor; an operation detection unit for detecting operations of the suction device; and a storage unit in which information indicating target rotational frequencies for the rotor is divided into a plurality of rotational frequency levels corresponding to the operations detected by the operation detection unit, and stored. In cases when the rotational frequency of the rotor indicated by the movement cycle of a magnetic pole position detected by a magnetic-pole-position detection unit exceeds the target rotational frequency corresponding to the operation detected by the operation detection unit, the control unit controls the rotational frequency of the rotor using either feedback of the rotational frequency of the rotor, or feedback of the current value supplied to the winding. |
