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Design and implementation of EMI filter for high frequency (MHz) power converters
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.ORCID iD: 0000-0002-8466-946X
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.ORCID iD: 0000-0001-5326-2563
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media.
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2012 (English)In: IEEE International Symposium on Electromagnetic Compatibility, IEEE conference proceedings, 2012, Art. no. 6396738- p.Conference paper, Published paper (Refereed)
Abstract [en]

The fabrication of emerging power semiconductor devices and high frequency PCB power transformers has made it possible to design the power converters in MHz switching frequency range. However, the higher switching frequency, di/dt loops and dv/dt nodes in power stages of these converters generate higher order harmonics which causes Electro Magnetic Interference (EMI). It is commonly believed that the EMI has worst affect in the converters switching in MHz frequency range than the converters operating below 150 kHz. Thus, it is important research direction to investigate the consequences of implementing a line filter to suppress the conducted EMI in high frequency power converters. In this paper, the measurements, and analysis of the conducted EMI in emerging power converters, switching in MHz frequency range, and the design of the filter for its suppression is presented. The design of LISN and its PCB implementation for EMI measurements is presented. The measurement of conducted EMI of a half bridge DC-DC converter switching at          3.45 MHz and the analysis of the frequency spectrum is discussed. The design, PCB implementation and characterization of the EMI filter and the measurement of the suppressed conducted noise by applying the filter are also discussed.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2012. Art. no. 6396738- p.
Keyword [en]
Electro Magnetic Compatibility; Electro Magnetic Interference; Line Impedance Stablization Network; Pulse Width Modulation
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-16527DOI: 10.1109/EMCEurope.2012.6396738Scopus ID: 2-s2.0-84872565389Local ID: STCOAI: oai:DiVA.org:miun-16527DiVA: diva2:536143
Conference
International Symposium on Electromagnetic Compatibility, EMC EUROPE 2012;Rome;17 September 2012through21 September 2012;Code95036
Available from: 2012-10-01 Created: 2012-06-21 Last updated: 2016-10-20Bibliographically approved
In thesis
1. Analysis and EMI suppression of MHz frequency range switch mode power supplies
Open this publication in new window or tab >>Analysis and EMI suppression of MHz frequency range switch mode power supplies
2013 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mid Sweden University, 2013. 139 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 164
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-21019 (URN)STC (Local ID)978-91-87557-08-8 (ISBN)STC (Archive number)STC (OAI)
Supervisors
Available from: 2014-01-13 Created: 2014-01-13 Last updated: 2016-10-20Bibliographically approved

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Majid, AbdulSaleem, JawadKotte, Hari BabuAmbatipudi, RadhikaBertilsson, Kent
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