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Convention Paper

Optimal Modulator with Loudspeaker Parameter Inclusion

Authors: Dahl, Nicolai; Iversen, Niels Elkjær; Knott, Arnold

AES Convention 143 · Paper 9824 · October 2017

Abstract

Today most class-D amplifier designs are able to deliver high efficiency and low distortion. However, the effect of parasitic component and speaker dynamics are not taken into account resulting in a degradation of the performance. This paper proposes a new PWM modulator that is able to capture an arbitrary amount of dynamics through optimization-based design methods. This makes it possible to include the parasitic components in the amplifier and the loudspeaker parameters in the design, thus creating a more linear response.

Details

Published in
AES Convention 143
AES Convention
143
Paper number
9824
Publication date
October 6, 2017
Session subject
Transducers—Part 1
Affiliation
Technical University of Denmark, Lyngby, Denmark; Technical University of Denmark, Kogens Lyngby, Denmark; Technical University of Denmark, Kgs. Lyngby, Denmark (See document for exact affiliation information.)
Type
Convention Paper