Feed-forward amplifier

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

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Details

330151, 330252, 330311, H03F 126, H03F 345

Patent

active

RE0315451

ABSTRACT:
A high-precision amplifier employs a feed-forward technique to provide a first order correction of amplifier distortion. A second amplifier is utilized to sense the base-to-emitter distortion of a main amplifier and develop an error output which is injected into an output node to provide cancellation of distortion from the output of the main amplifier. The feed-forward distortion-correction technique is particularly applicable to high-precision wideband differential amplifiers; however, the technique may be used in other amplifiers as well.

REFERENCES:
patent: 3689752 (1972-09-01), Gilbert
patent: 3944944 (1976-03-01), Ellenbecker
patent: 4048577 (1977-09-01), Shinn

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