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With its emphasis on controlling, converting and delivering energy – as opposed to signals and information – switched-mode power electronics originally had little, if any, relevance to the world of audio engineering. The past three decades have, however, seen a dramatic increase in the overlap between these once quite distinct topics, with switching power supplies now ubiquitous and Class D amplification already a mainstream technology. In January 2023, as incoming Chair of the Audio Engineering Society’s UK Section, ATRL’s Mike Turner drew on 35 years’ professional experience spanning both disciplines, to deliver a talk exploring the origins of power electronics and the developments that led to its rapid growth, together with an introduction to some of the key basic technical considerations. The talk concluded with a brief look at some application examples, all, of course, with an emphasis on audio. You can view the presentation here:

You can also download a PDF copy of the slide presentation HERE.

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