This paper presents a fundamental analysis of the linearity and efficiency for a suite of switching power stage topologies, from a simple two-level switching leg to more complex N-level switching topologies synthesizing PSCPWM. The investigations clarify the inherent limitations in terms of distortion mechanisms in switching power output stages. Generalized analytical expressions for power stage dissipation are derived and the efficiencies of the switching output stages are compared.

Author: Nielsen, Karsten
Affiliations: Bang & Olufsen A/S, Struer, Denmark ; Technical University of Denmark, Lyngby, Denmark(See document for exact affiliation information.)
AES Convention: 105 (September 1998) Paper Number: 4838
Publication Date: September 1, 1998
Subject: Analog Signal Processing for Audio

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