Feed forward distortion correction circuit

Details Feed forward distortion correction circuit Feed forward distortion correction circuit

1989-07-31

1990-07-24

Mullins, James B.

Amplifiers

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

330151, H03F 132

Patent

active

049437836

ABSTRACT:
In a feed forward type distortion correction circuit which detects a nonlinear distortion component of a main amplifier, amplifies the distortion component by an auxiliary amplifier and injects the amplified distortion component into the main amplifier output to cancel the distortion component to thereby reduce the nonlinear distortion component, a predistortion correction circuit is provided at the input side of the main amplifier so as to reduce the distortion component which is produced by the main amplifier, whereby the maximum output of the auxiliary amplifier can be set to a value smaller than the maximum output of the main amplifier.

REFERENCES:
patent: 4629996 (1986-12-01), Watanabe et al.

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