| 摘要 |
PURPOSE:To economically control both the constraint torque and rotating speed of a DC motor. CONSTITUTION:When a rotation detecting pulse is applied, an induced electromotive force generated by the rotation of a DC motor is compared with first and second reference voltages by two comparators, a power source voltage is applied or interrupted to the motor according to the result of the comparison by using a drive switching transistor. And, the first and second voltages are set to desired values to control both the constraint torque and rotating speed of the motor. |
