| 摘要 |
PURPOSE:To permit the optimum driving in accordance with the rotation driving mode of a motor by a method wherein the driving of the motor is controlled so that the motor is driven by bipolar driving system upon starting or rotating the motor in a low speed while the motor is driven by unipolar driving system upon rotating the motor in a high speed. CONSTITUTION:The title controller is provided with a motor drive control circuit 20, outputting the switching signal S of logical level 'H' when a motor 10 is driven by bipolar driving system and outputting the switching signal S of logical level 'L' upon driving the motor 10 by unipolar driving system. The motor drive control circuit 20 is provided with a switching circuit 21, effecting switching operation by a switching signal S and AND circuits 22a-22c, whose gates are controlled by the switching signal S. According to this method, the motor may be driven by the optimum driving system in accordance with the rotation driving mode of the motor 10. In this case, the driving efficiency of the motor may be improved. |
