Adaptive control circuit for a stepping motor

Details Adaptive control circuit for a stepping motor Adaptive control circuit for a stepping motor

1975-06-30

1977-05-24

Schaefer, Robert K.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

318685, G05B 1300

Patent

active

040258378

ABSTRACT:
Adaptive control circuit for a stepping motor in which each motor displacement from a present position to a target position is monitored and the proportion of acceleration signals to deceleration signals is modified as necessary to obtain minimal elapsed time during motor movement. Each designated motor displacement is assigned a corresponding number of acceleration signals which are applied to move the motor. Then during a subsequent homing of the motor, the motor displacement is monitored and the number of acceleration signals previously applied is either altered or left unchanged as a result of comparison between this displacement and a standard. The adaptive control circuit is shown as applied to printing apparatus in which a print disk is variously rotated by a first stepping motor mounted on a carrier and the carrier is moved along a print line by a second stepping motor.

REFERENCES:
patent: 3482155 (1969-12-01), Fredriksen
patent: 3629560 (1971-12-01), Slawson
patent: 3748563 (1973-07-01), Pomella et al.
patent: 3789971 (1974-02-01), Deyesso et al.
patent: 3813592 (1974-05-01), Ryberg
patent: 3950685 (1976-04-01), Kramer

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