Sensor having two-wire connection to load

Details Sensor having two-wire connection to load Sensor having two-wire connection to load

1988-09-02

1990-07-03

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

324160, 324173, 324166, 328 5, 3072961, 307519, G01P 3488

Patent

active

049394550

ABSTRACT:
A sensor is connectable with a load circuit via two conductors. The sensor receives its electrical power from the load circuit via the two conductors and similarly provides its output signal indicative of the sensed phenomenon via the same conductors. An unregulated source potential is provided to a terminal of the sensor from a supply potential via the load circuit. Voltage regulating circuitry in the sensor converts the unregulated source potential to a regulated operating potential for its active circuit elements. Certain output circuitry in the sensor is connected to the terminal having the unregulated source potential for conveying an output signal from the sensor to the load circuit.

REFERENCES:
patent: 3666988 (1972-05-01), Bellis
patent: 3747010 (1973-07-01), Buck
patent: 3747012 (1973-07-01), Buck
patent: 3935542 (1976-01-01), Buck
patent: 4168443 (1979-09-01), Periot
patent: 4328433 (1982-05-01), Hodera et al.
patent: 4663601 (1987-05-01), Troutman et al.
patent: 4757341 (1988-07-01), Tanigawa

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