Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control

Mario Auer, Timuçin Karaca

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

Class-D amplifiers are known for their excellent efficiency but also for their high potential to produce electromagnetic interference (EMI). Typically Class-D amplifiers operate in the analog domain, but there is a clear trend to replace some of the functionality by digital circuitry, requiring new approaches to reduce their emissions. In this paper a prototype of a digitally controlled Class-D amplifier is used to present digital techniques to reduce EMI with various methods. A new method is realized and the advantages of digitally assisted EMI reduction methods are demonstrated. Measurement results show that a considerable (up to 17.8 dB) reduction of EMI is possible taking advantage of digitally assisted EMI reduction techniques while delivering state-of-the art audio performance.

Originalspracheenglisch
TitelProceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers
Seiten33-38
Seitenumfang6
ISBN (elektronisch)9781538626894
PublikationsstatusVeröffentlicht - 31 Jul 2017
Veranstaltung11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017 - St. Petersburg, Russland
Dauer: 4 Jul 20178 Jul 2017

Konferenz

Konferenz11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017
LandRussland
OrtSt. Petersburg
Zeitraum4/07/178/07/17

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Signal interference

Schlagwörter

    ASJC Scopus subject areas

    • !!Electrical and Electronic Engineering
    • !!Safety, Risk, Reliability and Quality
    • !!Electronic, Optical and Magnetic Materials

    Fields of Expertise

    • Information, Communication & Computing

    Dies zitieren

    Auer, M., & Karaca, T. (2017). Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control. in Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017 (S. 33-38). [7998077] Institute of Electrical and Electronics Engineers.

    Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control. / Auer, Mario; Karaca, Timuçin.

    Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017. Institute of Electrical and Electronics Engineers, 2017. S. 33-38 7998077.

    Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

    Auer, M & Karaca, T 2017, Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control. in Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017., 7998077, Institute of Electrical and Electronics Engineers, S. 33-38, St. Petersburg, Russland, 4/07/17.
    Auer M, Karaca T. Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control. in Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017. Institute of Electrical and Electronics Engineers. 2017. S. 33-38. 7998077
    Auer, Mario ; Karaca, Timuçin. / Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control. Proceedings of the 2017 11th International Workshop on the Electromagnetic Compatibility of Integrated Circuits, EMCCompo 2017. Institute of Electrical and Electronics Engineers, 2017. S. 33-38
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