Non-linear digital-to-analog converter for servo circuit

Details Non-linear digital-to-analog converter for servo circuit Non-linear digital-to-analog converter for servo circuit

1972-04-03

1977-04-26

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

318601, 235197, H03K 1304

Patent

active

040204855

ABSTRACT:
A shunt-series resistive network in which the shunt elements are switched in and out of the circuit in accordance with the individual bits of a digital binary signal and wherein the values of the various resistive elements are selected to provide a network impedance which varies as a preselected expotential function of the quantity represented by the digital signal. A non-linear converter employing this network is used in a servo circuit for driving a controlled device as a non-linear expotential function of its relative position.

REFERENCES:
patent: 3182302 (1965-05-01), Horn
patent: 3303489 (1967-02-01), Krucoff
patent: 3307173 (1967-02-01), Popodi et al.
patent: 3382438 (1968-05-01), Geller
patent: 3555436 (1971-01-01), Elliott
patent: 3555540 (1971-01-01), Hartke
patent: 3569959 (1971-03-01), Arase
patent: 3670326 (1972-06-01), Sloane et al.

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