Amplifiers – Signal feedback – Combined with control of bias voltage of signal amplifier
Patent
1975-06-11
1977-01-18
Rolinec, R. V.
Amplifiers
Signal feedback
Combined with control of bias voltage of signal amplifier
323 4, 330 17, 330 19, 330 22, H03F 345
Patent
active
040042472
ABSTRACT:
A voltage-current converter having a balanced-voltage input and a balanced-current output. Each of the emitter circuits of the two input transistors includes a three-transistor current-mirror circuit, whose input circuit carries a constant current, whose output circuit carries the balanced-output current and of which the base-emitter junction of the transistor which is included in the input circuit is bridged by a semiconductor junction in the output circuit. The two current mirror circuits are coupled in that a resistor is included between the bases of the transistors which are included in the input circuits of the two current mirror circuits.
REFERENCES:
patent: 3876955 (1975-04-01), Ahmed
patent: 3891935 (1975-06-01), Limberg
Dahl Lawrence J.
Drumheller Ronald L.
Rolinec R. V.
Trifari Frank R.
U.S. Philips Corporation
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