A High-Voltage Class D Audio Amplifier for Dielectric Elastomer Transducers

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Abstract

Dielectric Elastomer (DE) transducers have emerged as a very interesting alternative to the traditional electrodynamic transducer. Lightweight, small size and high maneuverability are some of the key features of the DE transducer. An amplifier for the DE transducer suitable for audio applications is proposed and analyzed. The amplifier addresses the issue of a high impedance load, ensuring a linear response over the midrange region of the audio bandwidth (100 Hz – 3.5 kHz). THD+N below 0.1% are reported for the ± 300 V prototype amplifier producing a maximum of 125 Var at a peak efficiency of 95 %.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE Applied Power Electronics Conference and Exposition
Number of pages6
PublisherIEEE
Publication date2014
Pages3278-3283
DOIs
Publication statusPublished - 2014
EventTwenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition - Fort Worth Convention Center , Fort Worth, TX , United States
Duration: 16 Mar 201420 Mar 2014
http://www.apec-conf.org/

Conference

ConferenceTwenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition
LocationFort Worth Convention Center
CountryUnited States
CityFort Worth, TX
Period16/03/201420/03/2014
Internet address

Cite this

Nielsen, D., Knott, A., & Andersen, M. A. E. (2014). A High-Voltage Class D Audio Amplifier for Dielectric Elastomer Transducers. In Proceedings of the 2014 IEEE Applied Power Electronics Conference and Exposition (pp. 3278-3283). IEEE. https://doi.org/10.1109/APEC.2014.6803776