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Convention Paper

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

Authors: Nielsen, Karsten; Taul, Thomas; Andersen, Michael A. E.

AES Convention 104 · Paper 4673 · May 1998

Abstract

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.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4673
Publication date
May 6, 1998
Session subject
Audio Electronics
Affiliation
Department of Applied Electronics, Technical University of Denmark, Lyngby, Denmark ; Bang & Olufsen A/S, Struer, Denmark (See document for exact affiliation information.)
Type
Convention Paper