Two-wire type amplifier

Details Two-wire type amplifier Two-wire type amplifier

1976-06-30

1978-01-31

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With amplifier or space discharge device

324 65R, 330 69, G01R 130, G01R 2702

Patent

active

040718239

ABSTRACT:
Two differential amplifiers are provided each having two input terminals. One of the input terminals of each differential amplifier receives an output signal derived from a measuring circuit, while the other terminals of the differential amplifiers are coupled to each other. Output signals of the respective differential amplifiers control correspondingly two series-connected current control circuits, respectively. With such a circuit arrangement, a current flowing through a receiving unit connected in series to the two current control circuit is controlled in response to the output signal from the measuring circuit.

REFERENCES:
patent: 3629719 (1971-12-01), Heller et al.
patent: 3825852 (1974-07-01), Pinckaers

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