Impedance transducer

Amplifiers – With semiconductor amplifying device – Including atomic particle or radiant energy impinging on a...

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330110, 330288, H03F 308

Patent

active

043652093

ABSTRACT:
An impedance transducer is shown wherein two active elements of the same characteristics are formed on one thermally conductive base, one of these active elements is connected in a negative feedback circuit of a negative feedback amplifier, and the internal impedance of the other of these active elements is proportional to the input of the negative feedback amplifier.

REFERENCES:
patent: 3736520 (1973-05-01), Acker
patent: 4158178 (1979-06-01), Schade
B. Oischewski, Electronics, "Optical Coupling Extends Isolation Amplifier Utility" McGraw Hill Inc., vol. 49, No. 17, pp. 81-88, Aug. 19, 1976.

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