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Comparing Nonlinear with Linear Control Methods for Error Correction in Switching Audio Amplifier Output Stages

This paper addresses the important issue of efficient error correction in switching power output stages. A fundamental approach is taken, where a suite of various linear and non-linear control methods are investigated in theory and practice. Linear control systems prove to have a range of advantages compared with the investigated non-linear systems. The advantages cover simple modeling and optimization, low implementation complexity, effective error correction of all power stage generated errors and controllable performance. The theoretical benefits of non-linear control are not easily realized in hardware due to a range of inherent limitations.

Authors: Nielsen, Karsten; Taul, Thomas; Andersen, Michael A. E.
Affiliations: Department of Applied Electronics, Technical University of Denmark, Lyngby, Denmark ; Bang & Olufsen A/S, Struer, Denmark(See document for exact affiliation information.)
AES Convention:104 (May 1998) Paper Number:4673 Import into BibTeX
Subject:Audio Electronics

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