In this paper a hybrid architecture is presented, that combines linear and switching topology, in order to obtain an audio amplifier featuring high efficiency, low distortion and high bandwidth. The intrinsic structure of the switching stage allows an automatic spreading of the switching frequency, reducing EMI issues. A prototype amplifier was realized, tailored for automotive applications. The proposed architecture is patent pending.

Authors: Shirley, Ben G.; Kendrick, Paul
Affiliation: Acoustics Research Centre, University of Salford, Salford, UK
AES Convention: 116 (May 2004) Paper Number: 6027
Publication Date: May 1, 2004
Session Subject: Audio in Computers; Audio Video Systems

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