chopper amplifier

chopper amplifier

[′chäp·ər ′am·plə‚fī·ər]
(electronics)
A carrier amplifier in which the direct-current input is filtered by a low-pass filter, then converted into a square-wave alternating-current signal by either one or two choppers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
developed a switched-capacitor chopper-notch modulator for replica image cancelation in chopper amplifiers [21].