Analog signal comparator

Details Analog signal comparator Analog signal comparator

1974-03-14

1976-08-31

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318681, G05F 100

Patent

active

039783871

ABSTRACT:
An analog signal comparator receives a variable potential signal at each of two input ports. The signal at each input port is provided to a gate of one programmable unijunction transistor (PUT) and an anode of another PUT to form mirror-image symmetrical connections to the two PUT's. An output signal from either of the PUT's then indicates the lesser of the potentials at a corresponding one of the input terminals. The comparator is preferably intended for use in a closed-loop motor positioning system.

REFERENCES:
patent: 3260912 (1966-07-01), Gregory
patent: 3478254 (1969-11-01), Lofrisco et al.
patent: 3652913 (1972-03-01), Leland
patent: 3686557 (1972-08-01), Futumara
patent: 3742327 (1973-06-01), Nettles
patent: 3806787 (1974-04-01), Erler
patent: 3890550 (1975-06-01), Izumi et al.

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