| 摘要 |
PURPOSE:To smoothly control a motor, by giving continuous pulses from a phase comparator to the motor, after smoothing the pulses and clipping them to control the peak voltage to a given value. CONSTITUTION:After continous pulses from a phase comparison circuit 42 are smoothed at a smoothing circuit 51, they are level-shifted at a level shift circuit 52 so that the output voltage at an optimum reception point is zero voltage. Next, a voltage fed to a motor 31 at a clip circuit 53 is gradually decreased in average to gradually decrease the motor 31, allowing to make easy the transition to the stop. |
