Apparatus for controlling the pulse period of pulses applied to

Details Apparatus for controlling the pulse period of pulses applied to Apparatus for controlling the pulse period of pulses applied to

1980-08-21

1982-07-20

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318601, 318603, 318696, 318685, G05B 1300

Patent

active

043408486

ABSTRACT:
Apparatus for controlling the pulse period of pulses applied to a pulse motor in a printer is disclosed. The pulse motor is accelerated by gradually reducing the pulse period of pulses applied to the pulse motor. After the detection of return of the printing head to a certain predetermined position, the speed of pulse motor is gradually decreased down by gradually extending the pulse period of pulses applied to the motor. At the start of returning movement of the printing head, the first pulse of pulses applied to the motor has a pulse period larger than that of self-start pulse of the motor. The pulse period of the subsequent pulses is gradually reduced. At the time of stopping the pulse motor, the pulse period of pulses applied to the motor is gradually extended to decrease the speed of the pulse motor. At the moment when the pulse period is extended to a value larger than the pulse period of self-start pulse of the motor, application of pulse to the pulse motor is stopped.

REFERENCES:
patent: 3813592 (1974-05-01), Ryberg
patent: 4025837 (1977-05-01), Meier et al.
patent: 4152631 (1979-05-01), Weinberg et al.

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