Dual-feedback amplifier circuit arrangements

Details Dual-feedback amplifier circuit arrangements Dual-feedback amplifier circuit arrangements

1995-12-04

1997-11-04

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330 85, 330104, H03F 345, H03F 134

Patent

active

056844336

ABSTRACT:
In an amplifier circuit arrangement in which series resistive feedback is utilized in the main amplifier to minimize distortion, and a feedback amplifier is provided in a path from the output of the arrangement to the series feedback path effectively to boost the value of the feedback resistor, a further amplifier is arranged to provide positive feedback to the resistive load circuit of the main amplifier effectively to boost the value of the resistive load.

REFERENCES:
patent: 3688209 (1972-08-01), TeWinkel
patent: 3769605 (1973-10-01), Long
patent: 4739282 (1988-04-01), Scheinberg
patent: 4904952 (1990-02-01), Tanimoto
Patent Abstracts of Japan, Vo. 12, No. 94 (E-593), Mar. 26, 1988.

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