Digital servo-control system

Details Digital servo-control system Digital servo-control system

1990-10-15

1992-01-14

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318601, 318628, 318569, 323225, 363 42, H02P 728

Patent

active

050814087

ABSTRACT:
The present invention relates to a digital servo-control system whose purpose is to control very high precision equipment. The system includes two digital-to-analog converters, one of which is followed by a divider, with the two converters contributing to producing a control signal. A processor responds to a measurement signal and to a reference value to generate the digital values that are delivered to the converters. The system is particularly suitable for application to servo-controlling a voltage-controlled oscillator.

REFERENCES:
patent: 3793511 (1974-02-01), Bala et al.
patent: 4053819 (1977-10-01), Matsumoto
patent: 4063146 (1977-12-01), Oliver
patent: 4272818 (1981-06-01), McDaniel
patent: 4763057 (1988-08-01), Danz et al.
patent: 4825132 (1989-04-01), Gritter

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