Common Mode DGS EMI Filter Integrated into a GaN Half Bridge Switching Cell

Eduard Dechant, Norbert Seliger, Ralph Kennel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper introduces a common mode EMI filter based on defected ground structures (DGS), which is integrated into a half bridge switching cell with Gallium Nitride (GaN) power semiconductors. A four-layer printed circuit board with a low-inductance vertical commutation loop was used for the switching cell design. The performance of the integrated DGS filter was studied by a single-phase DC/AC power conversion to an ohmic-inductive load. Measurements showed critical CM noise reduction of more than 17 dB for frequencies above the cut-off frequency of 34 MHz compared to a switching cell without DGS filter.

Original languageEnglish
Title of host publicationPCIM Europe 2022
PublisherMesago PCIM GmbH
Pages1751-1756
Number of pages6
ISBN (Print)9783800758227
DOIs
StatePublished - 2022
EventInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022 - Nuremberg, Germany
Duration: 10 May 202212 May 2022

Publication series

NamePCIM Europe Conference Proceedings
ISSN (Electronic)2191-3358

Conference

ConferenceInternational Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2022
Country/TerritoryGermany
CityNuremberg
Period10/05/2212/05/22

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