Utilization of non-linear converters for audio amplification

Niels Elkjær Iversen, Thomas Birch, Arnold Knott

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

Abstract

Class D amplifiers fits the automotive demands quite well. The traditional buck-based amplifier has reduced both the cost and size of amplifiers. 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 amplification 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 publicationProceedings of the AES 48th International Conference
Number of pages9
PublisherAudio Engineering Society
Publication date2012
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

Cite this

Iversen, N. E., Birch, T., & Knott, A. (2012). Utilization of non-linear converters for audio amplification. In Proceedings of the AES 48th International Conference Audio Engineering Society.