Stepper motor feedback in position servo loop

Details Stepper motor feedback in position servo loop Stepper motor feedback in position servo loop

1975-08-04

1980-02-05

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

Multiple mode systems

318685, G05B 1118

Patent

active

041874552

ABSTRACT:
The actual drive signals to a stepper motor which rotates a mechanical device provide low order bits used in place of the low order bits of a digital word derived from an analog position sensor, to provide an accurate feedback word for subtraction from a digital position command word so as to generate a position error signal to drive the stepper motor in a servo loop.

REFERENCES:
patent: 3370289 (1968-02-01), Hedgcock
patent: 3586953 (1971-06-01), Markkanen et al.
patent: 3783357 (1974-01-01), Ichiyanage

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