| 摘要 |
PURPOSE:To control uneven rotation by using a storage means storing data of the same contents for individual motors varying in a coil conducting switching position and differing in a torque variation waveform. CONSTITUTION:An electronic commutator motor 3 has a rotor magnet 4 and a stator coil substrate 5 and is equipped with a rotating plate R, light-emitting elements LED and light-receiving elements P for detecting rotational positions. Also, a control circuit is formed by a motor driving circuit 6, waveform shaping circuits 8, 10, preset circuits 12-13, a counter 16, a latch circuit 17, a counter circuit system control pulse generator circuit 19, a storage means 20 and a gain control circuit 22. Further, even when the conducting switching position of a rotator is different from a regular conducting switching position, appropriate correction data are outputted from the storage means 20, of which address is designated in the manner of corresponding to the turning angle of said rotator and actual conducting switching position. As a result, it is possible to control uneven rotation and to realize stable rotation properties. |
