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.

Authors: Dahl, Nicolai; Iversen, Niels Elkjær; Knott, Arnold
Affiliations: 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.)
AES Convention: 143 (October 2017) Paper Number: 9824
Publication Date: October 8, 2017
Subject: Transducers—Part 1

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