| 摘要 |
PURPOSE:To readily regulate the rotating speed of a motor by comparing an output from a tachometer generator with the preinput signal to alter the limiting value of a voltage limiter. CONSTITUTION:A voltage limiter 8 inputs a command signal in response to an input signal 1 to a motor driver 4. A tachometer generator 6 outputs the rotating speed of a motor 5 through a trimmer 3 for regulating the feedback amount to the driver 4. The difference of the both signals is amplified to rotate the motor 5. A comparator 7 inputs the maximum speed of the motor in advance and a signal corresponding to the prescribed speed, compares it with a signal from the generator 6, and a voltage limiter 8 resultantly outputs the resulted value. |
