Title :
New distortion measurement method for booster amplifiers
Author :
Rinnert, Stéphanie ; Scott, Jonathan
Author_Institution :
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
6/1/1999 12:00:00 AM
Abstract :
The usual method of distortion measurement of an amplifier in a feedback loop involves breaking the loop, which may change the dc and (nonlinear) interstage loading conditions. A new method is presented and proven with theory and experiment, permitting distortion measurement of a final or booster stage within an amplifier. The new method does not require breaking of the feedback loop. Measurements are carried out with linear and nonlinear loudspeaker load
Keywords :
audio-frequency amplifiers; electric distortion measurement; feedback amplifiers; harmonic distortion; operational amplifiers; transfer functions; audio amplifier; booster amplifiers; distortion measurement method; feedback loop; interstage loading conditions; linear loudspeaker load; nonlinear loudspeaker load; op amp; transfer function; Distortion measurement; Feedback amplifiers; Feedback loop; Linearity; Loudspeakers; Microwave technology; Output feedback; Total harmonic distortion; Transfer functions; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
