| 摘要 |
PURPOSE:To perform smooth starting, acceleration, deceleration and stop of motors and to synchronously operate motors by connecting one or more sets of control circuits with common reference pulse generator, and externally controlling the switching circuit in the control circuit and a gate circuit. CONSTITUTION:When a signal is simultaneously applied to terminals 7, 8 to rotate a pulse motor 2, a gate circuit 4 and a switch 6 are operated to apply a voltage of high level generated at a phase comparator 8 to an analog filter 5, a voltage rising gradually by the time constant is output to the output side, applied through a diode 10 to a voltage control type oscillator 3 to increase the oscillating frequency, thereby increasing the rotating speed of the motor 2. The motor 2 rotates by the repetition frequency in a pulse generator A. When the signal of the terminal 7 is interrupted, the rotating speed of the motor 2 is gradually decreased to the rotating speed decided by a constant-voltage generator 12. Then, when the signal of the terminal 8 is interrupted, the motor 2 is stopped. |
