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

Mario Auer, Timuçin Karaca

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

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
Land/GebietRussland
OrtSt. Petersburg
Zeitraum4/07/178/07/17

ASJC Scopus subject areas

  • Elektrotechnik und Elektronik
  • Sicherheit, Risiko, Zuverlässigkeit und Qualität
  • Elektronische, optische und magnetische Materialien

Fields of Expertise

  • Information, Communication & Computing

Fingerprint

Untersuchen Sie die Forschungsthemen von „Digitally assisted EMI-reduction techniques for Class-D amplifiers with digital control“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren