Velocity compensation for limited displacement motors

Details Velocity compensation for limited displacement motors Velocity compensation for limited displacement motors

1976-12-01

1982-10-05

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318616, 318617, G05B 501

Patent

active

043530176

ABSTRACT:
A velocity-compensation circuit for a limited-displacement motor comprises a bridge circuit incorporating the control winding of the motor in a first arm. An adjacent bridge arm includes both an inductance and a resistance whose ratio is the same as that of the first bridge arm. The bridge is balanced to eliminate from its output the effect of current through the control winding. The bridge output in normal operation is therefore solely a function of motor velocity and this signal is fed back to provide velocity compensation for the motor.

REFERENCES:
patent: 3229182 (1966-01-01), Kubler
patent: 3604999 (1971-09-01), Pugh
patent: 3660744 (1972-05-01), Plummer
patent: 3927360 (1975-12-01), MacMullan

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