Negative-feedback amplifier and feedback controlling method ther

Details Negative-feedback amplifier and feedback controlling method ther Negative-feedback amplifier and feedback controlling method ther

1994-04-08

1995-09-05

Mottola, Steven

Amplifiers

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

455126, 330107, H03F 134

Patent

active

054482038

ABSTRACT:
A negative-feedback amplifier prevents deterioration of the open-loop gain and the distortion improvement effect despite changes in a sending frequency by demodulating a baseband signal from a carrier and an output signal of an amplifier and a demodulated baseband signal. The negative-feedback amplifier includes a correcting member for correcting a phase error of the demodulated baseband signal caused by a delay in the amplifier for each change of a sending frequency of the carrier.

REFERENCES:
patent: 4268802 (1981-05-01), Fisher et al.
patent: 4700151 (1987-10-01), Nagata
patent: 5075635 (1991-12-01), Boulanger et al.

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