Utilization of Nonlinear Converters for Audio Amplification

Niels Iversen, Thomas Birch, Arnold Knott

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Class D ampliers ts the automotive demands quite well. The traditional buck-based amplier has reduced both the cost and size of ampliers. However the buck topology is not without its limitations. The maximum peak AC output voltage produced by the power stage is only equal the supply voltage. The introduction of
non-linear converters for audio amplication defeats this limitation. A Cuk converter, designed to deliver an AC peak output voltage twice the supply voltage, is presented in this paper. A 3V prototype has been developed to prove the concept. The prototype shows that it is possible to achieve an peak AC output
voltage twice the supply voltage but also reveals some of the major obstacles and challenges which is also discussed.
Original languageEnglish
Title of host publicationThe proceedings of the AES 48th international conference
PublisherAES
Publication date2012
Pages57-65
ISBN (Print)978-0-937803-88-2
Publication statusPublished - 2012
EventThe AES 48th International Conference - Munich, Germany
Duration: 21 Sep 201223 Sep 2012

Conference

ConferenceThe AES 48th International Conference
CountryGermany
CityMunich
Period21/09/201223/09/2012

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