Differential amplifier having active feedback circuitry

Details Differential amplifier having active feedback circuitry Differential amplifier having active feedback circuitry

1974-10-23

1976-05-04

Mullins, James B.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

330 59, 330 85, H03F 345

Patent

active

039551490

ABSTRACT:
Common-mode and differential-mode active electrical and electro-optic feedback systems are formed with a plurality of physically interchangeable circuits. One of a plurality of input stage amplifiers can be connected to one of a plurality of loads through intermediate and output stage amplifiers. A plurality of interchangeable feedback stage amplifiers are then connected from various stage amplifiers back to the input stage amplifier. Such arrangements control the gain and the input and output impedances of the system independently for both the common and differential-modes.

REFERENCES:
patent: 3275945 (1966-09-01), Walker et al.
patent: 3480872 (1969-11-01), Breuer
patent: 3611173 (1971-10-01), Goulding et al.
patent: 3699468 (1972-10-01), Harmgordt
patent: 3811094 (1974-05-01), Lee

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