| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to control the stable rotating speed without a voltage drop and influence of noise by converting a pulse signal for speed control output from an operating unit for instructing the rotating speed into a drive voltage signal, thereby driving a motor body. SOLUTION: A control circuit containing motor 1 receives a pulse signal X for speed control generated from an operating unit 2 by the input unit 8a of a receiver 5. The pulse signal from the receiver 5 is converted into a voltage signal Z in a converter 6, and a motor body 3 is operated by a driver 7. When the rotating speed of the rotary shaft of the output shaft of the body 3 is varied, the pulse width of the signal X is altered by the unit 2, the value V of the signal Z is changed by this, and the speed is accelerated or decelerated. Thus, since it is operated by the ON or OFF of the signal, even if the distance from the unit 2 to the body 3 is large, the speed can be stably controlled without a voltage drop of wirings or influence of noise. |
