AES E-Library

Linearity and Efficiency Performance of Switching Audio Power Amplifier Output Stages-A Fundamental Analysis

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 Import into BibTeX
Subject:Analog Signal Processing for Audio

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes14)   /pp9798/pp9809/4728.pdf

Start a discussion about this paper!