Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers

Timucin David Karaca, Mario Auer

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

Abstract

Audio amplifiers for portable devices need to be
power efficient, therefore Class-D amplifiers are used. These
amplifiers employ a switching output stage, so that they generally
produce a significant amount of EMI. Filtering these frequency
components usually is not an option since the amplifiers have to
be small and lightweight. A reduction of EMI can be achieved by
using spread-spectrum techniques that distribute the emissions
over a wider frequency range. Unfortunately spread-spectrum
techniques can impact the audio performance. This work presents
a test setup for a Class-D prototype to evaluate different spread-spectrum
methods by measurement or even by listening to the
audio output. Using this setup several spread-spectrum methods
are compared in terms of EMI-reduction and audio performance.
Originalspracheenglisch
Titel2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers
Seiten791
Seitenumfang793
ISBN (elektronisch)978-1-4673-9494-9
ISBN (Print)978-1-4673-8310-3
PublikationsstatusVeröffentlicht - 2016
VeranstaltungAsia-Pacific International Symposium on Electromagnetic Compatibility & Signal Integrity (APEMC) - Shenzhen, China
Dauer: 18 Mai 201621 Mai 2016

Konferenz

KonferenzAsia-Pacific International Symposium on Electromagnetic Compatibility & Signal Integrity (APEMC)
LandChina
OrtShenzhen
Zeitraum18/05/1621/05/16

Schlagwörter

    ASJC Scopus subject areas

    • !!Electrical and Electronic Engineering

    Treatment code (Nähere Zuordnung)

    • Experimental

    Dies zitieren

    Karaca, T. D., & Auer, M. (2016). Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers. in 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC) (S. 791). Institute of Electrical and Electronics Engineers.

    Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers. / Karaca, Timucin David; Auer, Mario.

    2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). Institute of Electrical and Electronics Engineers, 2016. S. 791.

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

    Karaca, TD & Auer, M 2016, Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers. in 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). Institute of Electrical and Electronics Engineers, S. 791, Shenzhen, China, 18/05/16.
    Karaca TD, Auer M. Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers. in 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). Institute of Electrical and Electronics Engineers. 2016. S. 791
    Karaca, Timucin David ; Auer, Mario. / Characterization of EMI-Reducing Spread-Spectrum Techniques for Class-D Audio Amplifiers. 2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC). Institute of Electrical and Electronics Engineers, 2016. S. 791
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