Differential feedback amplifier with frequency-shaped reference

Details Differential feedback amplifier with frequency-shaped reference Differential feedback amplifier with frequency-shaped reference

1975-03-14

1976-09-14

Mullins, James B.

Amplifiers

Hum or noise or distortion bucking introduced into signal...

330 69, 330 85, 330151, H03F 128

Patent

active

039809676

ABSTRACT:
The reference signal applied to the differencing network of a differential feedback amplifier is shaped to conform to the natural gain-vs-frequency characteristic of the principal amplifier. This serves to minimize the amplitude of the error signal that the error amplifier must handle. As a result, the error amplifier is much smaller and can be optimized with respect to its noise and dispersion performance.

REFERENCES:
patent: 1834002 (1931-12-01), Nyquist
patent: 3525052 (1970-08-01), Clark
patent: 3624532 (1971-11-01), Seider
patent: 3676790 (1972-07-01), Beurrier
patent: 3768028 (1973-10-01), Wolcott et al.
patent: 3810256 (1974-05-01), Van Doorn
pedersen, "A Distortion-Free Amplifier", Proceedings of the Ire, vol. 28, No. 2, Feb. 1960, pp. 59-66.

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