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EMI Suppression in High Frequency Half Bridge Converter
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
SEPS Technologies AB, Holmgatan 10, 851 70 Sundsvall, Sweden.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design.
2013 (English)In: Elektronika ir Elektrotechnika, ISSN 1392-1215, Vol. 19, no 9, 75-80 p.Article in journal (Refereed) Published
Abstract [en]

Electromagnetic effects influence the design of power converters switching in MHz frequency region. In these converters, the high switching frequency in combination with sudden changes in current and voltage levels generate higher order harmonics which causes Electro Magnetic Interference (EMI). To study the effects of increased switching frequency on conducted EMI, the harmonics amplitudes are analyzed by increasing the switching frequency of a two wire input half bridge power converter from 1.32 MHz to 3 MHz. In order to suppress the Common Mode (CM) conducted EMI, different possibilities of connecting the Y- capacitor in a two wire universal input half bridge converter are discussed and the conducted EMI is measured and analyzed by connecting the Y- capacitor at different points. The line filters are designed, characterized and implemented in order to suppress conducted EMI. The effects of increased switching frequency on the line filter design are studied by analysing the EMI spectrum of both the converters. The analysis of results indicates that the filter size is reduced by increasing the switching frequency of the power converter. 

Place, publisher, year, edition, pages
Kauno Technologijos Universitetas Lithuania, 2013. Vol. 19, no 9, 75-80 p.
Keyword [en]
Common Mode, Differential Mode, Electro Magnetic Interference, Electro Magnetic Compatibility, Line Impedance Stabilization Network
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-19737DOI: 10.5755/j01.eee.19.9.5653ISI: 000330687100016Scopus ID: 2-s2.0-84887494301Local ID: STCOAI: oai:DiVA.org:miun-19737DiVA: diva2:641650
Conference
17th International Conference 2013 Palanga
Note

Title registered incorrectly in Scopus: EMT suppression in high frequency half bridge converter

Available from: 2013-08-19 Created: 2013-08-19 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_EMI_suppression(1171 kB)529 downloads
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