Current-Driven Switch-Mode Audio Power Amplifiers

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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The conversion of electrical energy into sound waves by electromechanical transducers is proportional to the current through the coil of the transducer. However virtually all audio power amplifiers provide a controlled voltage through the interface to the transducer. This paper is presenting a switch-mode audio power amplifier not only providing controlled current but also being supplied by current. This results in an output filter size reduction by a factor of 6. The implemented prototype shows decent audio performance with THD + N below 0.1 %.
Original languageEnglish
Title of host publicationProceedings of 132nd AES Convention
Number of pages7
PublisherAES
Publication date2012
StatePublished

Conference

ConferenceAES 132nd Convention
CountryHungary
CityBudapest
Period26/04/1229/04/12
Internet addresshttp://www.aes.org/
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