Feed-forward amplifier with simple resistive coupling

Details Feed-forward amplifier with simple resistive coupling Feed-forward amplifier with simple resistive coupling

1976-02-11

1977-06-07

Rolinec, Rudolph V.

Amplifiers

With amplifier bypass means

330 26, 330 30R, 330149, H03F 100

Patent

active

040286347

ABSTRACT:
Feedback amplifiers having zero or infinite input and output impedances are used as the main amplifier and error amplifier elements of a feed-forward amplifier system. This allows the required impedance matching with simple resistive coupling networks rather than the complicated couplers heretofore required.
The use of both series and shunt feedback provides convenient coupling points for the proper phase relationship between combining signals, and the unidirectional conductivity of the amplifier transistors supplies the directionality usually required of the couplers.

REFERENCES:
patent: 2662126 (1953-12-01), Henson
patent: 3202928 (1965-08-01), Prior
patent: 3471798 (1969-10-01), Seidel
patent: 3541467 (1970-11-01), Seidel
patent: 3667065 (1972-05-01), Beurrier et al.
patent: 3725806 (1973-04-01), Darlington
patent: 3815040 (1974-06-01), Seidel

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