Digitally controlled gain reduction in a positioning system

Details Digitally controlled gain reduction in a positioning system Digitally controlled gain reduction in a positioning system

1978-07-28

1980-08-12

Dobeck, Benjamin

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318681, 330 86, G05F 100

Patent

active

042175313

ABSTRACT:
A system is disclosed for positioning an instrumentality over a predetermined range in response to a digitally coded position signal. To effect a controlled reduction in the instrumentality movement, an operational amplifier is provided having a feedback circuit including a fixed resistor and a controllable switch connected across the resistor. The switch is selectively controlled to short circuit the resistor at a controlled rate to effect a controlled gain reduction for the operational amplifier.

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patent: 4016821 (1977-04-01), Minalga
patent: 4066976 (1978-01-01), Dickopp
patent: 4070632 (1978-01-01), Tuttle

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