Control circuit for stepper motor

Details Control circuit for stepper motor Control circuit for stepper motor

1982-01-29

1983-11-22

Dobeck, B.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, G05B 1940

Patent

active

044171897

ABSTRACT:
A control circuit for a stepping motor includes a source of pulses at a first frequency which is applied to the stepping motor. In response to a gate signal, the circuit gradually increases the rate of pulses at the stepping motor. After reaching a predefined maximum pulse rate, the pulse remains at a constant rate for some time and then gradually decreases until reaching said first rate where it remains until another gate signal occurs. As such, the motor runs at one speed, accelerates to a second speed and remains there for a time and then decelerates to said one speed.

REFERENCES:
patent: 3919608 (1975-11-01), Usami et al.
patent: 3982166 (1976-09-01), Sijtstra et al.
patent: 4142140 (1979-02-01), Wiesner
patent: 4156170 (1979-05-01), Strunc
patent: 4274041 (1981-06-01), Mosel
patent: 4340848 (1982-07-01), Hanagata et al.

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