Proportional motor control circuit

Details Proportional motor control circuit Proportional motor control circuit

1988-06-15

1989-07-25

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

'reset' systems

318681, 318678, 318258, 318280, 354 74, 330146, G05B 1136

Patent

active

048517534

ABSTRACT:
A proportional control circuit for the direction and precise speed control of D.C. electric motors such as those used to drive camera tilt/pan mountings. The circuit applies current to D.C. motors in a push/pull proportional scheme whereby slewing speed is smoothly and precisely controlled and electromotive force provides motor braking. A single current source powers the motors through an "H" bridge switching amplifier arrangement responsive to the balance between two voltage dividers, one of which includes a controlling potentiometer that regulates both direction and speed.

REFERENCES:
patent: 4066945 (1978-01-01), Korte, Jr.
patent: 4070610 (1978-01-01), Rudich, Jr.
patent: 4319170 (1982-03-01), Brent
patent: 4528514 (1985-07-01), Quackenbush
patent: 4720805 (1988-01-01), Vye

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