The Bennett method, which, to this point, has been used for calculating the spectra of Class D amplifiers is discussed, including its disadvantages. The frequency spectra are derived by a new method for single-ended and push-pull amplifiers using one-sided and two-sided natural modulation. The respective non-linear distortion caused by the combination components occurring in the acoustic range are used to determine the minimum carrier frequencies necessary for various quality groups of Class D amplifiers.

Author: Pribyl, Pavel
Affiliation: Technical University, Prague, Czechoslovakia
AES Convention: 90 (February 1991) Paper Number: 3035
Publication Date: February 1, 1991
Subject: Digital Audio Equipment and the Broadcasting Environment

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