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Analysis of radiated EMI for power converters switching in MHz frequency range
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.ORCID iD: 0000-0002-8466-946X
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
2013 (English)In: Proceedings - 2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2013, IEEE conference proceedings, 2013, 428-432 p.Conference paper (Refereed)
Abstract [en]

The higher switching frequency in combination with di/dt loops and dv/dt nodes in the power stages of high frequency power converters generates higher order harmonics which cause Electro Magnetic Interference (EMI). It is commonly perceived that high frequency converters are more vulnerable to radiated EMI, thus, it is very important to analyze the radiated emission of these converters. According to the author’s knowledge, the analysis of the radiated emission of power converters switching in the MHz frequency region has not been presented until now. Therefore, in this paper, the measurements, and analysis of the near field radiated emissions of these emerging power converters is presented. These measurements are beneficial in the early design stage of power converters. Both E-field and H-field and captured and analyzed for a half bridge converter switching at 3 MHz and at the output power level of 25 W. The effects of the magnetic and electric field emissions with the addition of a Y-capacitor and secondary side common mode choke are analyzed.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2013. 428-432 p.
Keyword [en]
bridge circuits;capacitors;electromagnetic interference;harmonics;switching convertors;E-field;EMI radiation;H-field;electromagnetic interference;frequency 3 MHz;half bridge converter switching;high frequency power converter generation;higher order harmonics;near field radiated emissions;power 25 W;power converter switching;power stages;switching frequency;Electromagnetic interference;Frequency conversion;Frequency measurement;Harmonic analysis;Inductors;Magnetic field measurement;Probes;Common Mode;Differential Mode;Electro Magnetic Compatibility;Electro Magnetic Interference
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-21017DOI: 10.1109/DEMPED.2013.6645751Scopus ID: 2-s2.0-84891097524Local ID: STCISBN: 978 - 1 - 4799 - 002 5 - 1 (print)OAI: oai:DiVA.org:miun-21017DiVA: diva2:686618
Conference
2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives, SDEMPED 2013; Valencia; Spain; 27 August 2013 through 30 August 2013; Category number CFP13SDE-ART; Code 101470
Available from: 2014-01-13 Created: 2014-01-13 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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CiteExportLink to record
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Citation style
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