Systems and methods for compensating for element nonlinearities

Details Systems and methods for compensating for element nonlinearities Systems and methods for compensating for element nonlinearities

1983-06-06

1985-10-22

Mullins, James B.

Amplifiers

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

330 85, 330110, 330260, H03F 126

Patent

active

045491461

ABSTRACT:
The distortion effects introduced in a complex multifrequency wave by parametric variations in individual active elements arising from signal and power supply variations in a circuit, such as an audio amplifier, are compensable through the use of replicas of the active elements, and the generation of a feedback signal incorporating comparable distortion. By high gain amplification of the feedback signal in a differential amplifier receiving an input signal that is not comparably distorted a comparison signal is derived containing distortion components. The comparison signal is used in a feedforward path which includes the circuit that is subjected to parametric variations in a sense to cancel the introduced distortions.

REFERENCES:
Soliman, Ahmed M., et al., "Active Compensation of OpAmps", IEEE Trans. Ckts. and Systems, vol. CAS-26, No. 2, Feb. 1979, pp. 112-117.

Affiliated with

Also associated with

Rating

Systems and methods for compensating for element nonlinearities does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Systems and methods for compensating for element nonlinearities , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for compensating for element nonlinearities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-124187