Feedbeside correction circuit for an amplifier

Details Feedbeside correction circuit for an amplifier Feedbeside correction circuit for an amplifier

1977-10-31

1979-01-02

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330126, 330149, 330151, 330306, H03F 345

Patent

active

041329589

ABSTRACT:
A feedbeside correction circuit for correcting errors in the frequency response of a wideband amplifier includes a network which models the physical distortion-producing mechanisms of the amplifier semiconductor pn junctions. An input signal is applied simultaneously to the amplifier and to the feedbeside circuit. The feedbeside circuit produces a correction signal which is applied to a summing node and subtracted from the amplifier signal so that the amplifier output is substantially error free. The circuit may be used both for single-ended and differential inputs.

REFERENCES:
patent: 2589133 (1952-03-01), Purington
patent: 2737628 (1956-03-01), Haines
patent: 3460051 (1969-08-01), Bray
patent: 3611145 (1971-10-01), O'Connor
patent: 3709206 (1955-05-01), Ferguson
patent: 3727147 (1973-04-01), DeWitt
patent: 3944944 (1976-03-01), Ellenbecker
Trapnell et al., "Wideband Amplifier," IBM Technical Disclosure Bulletin, vol. 2, No. 5, Feb. 1960, p. 40.

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