Stepper motor control circuit

Details Stepper motor control circuit Stepper motor control circuit

1980-09-17

1982-09-14

Truhe, J. V.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318396, 318415, G05B 1940

Patent

active

043497713

ABSTRACT:
A stepper motor control includes an integrator, a first error amplifier comparing the integrator output with a feedback signal from a shaft position transducer, a second error amplifier comparing the transducer output with a demand signal, a low wins selector which passes to the integrator the output of whichever one of the first and second error amplifier is producing the lowest absolute value output, integrator reset means sensitive to the output of the first error amplifier and acting to limit the slew rate of the integrator output, a pulse generator driven by the selector and a motor drive circuit pulsing the motor coils.

REFERENCES:
patent: 3619757 (1971-11-01), Ioerger
patent: 3932796 (1976-01-01), Kreithen

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