Digital resolver-tracking loop

Details Digital resolver-tracking loop Digital resolver-tracking loop

1977-01-24

1978-03-14

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 1302

Patent

active

040793745

ABSTRACT:
A system for tracking a pair of analog output signals from a resolver wherein such signals are hard-limited to provide square wave representations thereof, such hard limited signals being supplied to at least one digital phase-locked loop in which the phases thereof are compared with those of a pair of square wave digitized feedback signals to produce an error signal. The error signal is digitally integrated to produce a control signal for controllably changing the number of pulses in a pulsed clock signal which is supplied to a feedback counter for producing the pair of feedback signals having phases which are thereby changing so as to minimize the error signal.

REFERENCES:
patent: 3564539 (1971-02-01), Dew
patent: 3706092 (1972-12-01), Cox, Jr.
patent: 3878535 (1975-04-01), Twiss
patent: 3984831 (1976-10-01), Jones

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