| 摘要 |
PROBLEM TO BE SOLVED: To provide a control system for brushless DC motor, capable of detecting the position of a rotor and driving a brushless DC motor, without the need for using a hole sensor or for monitoring counter electromotive force. SOLUTION: This control system (200) for brushless motor comprises the brushless motor (210), of which the rotor rotates by changing the polarity of drive current, a moving part (250) moving in a prescribed direction (256) according to the driving of the brushless motor (210), detection part (252, 254) of detection position changes of the moving part (250), and a control part (230), which is connected to the detecting parts (252, 254) and the brushless motor (210) and changes the polarity of the drive current, each time the moving part (250) moves by a prescribed distance. |
