Hoffmann, Klaus
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Alternative name
Hoffmann, Klaus Friedrich
Hoffmann, Klaus F.
Status
Active HSU Member
Main affiliation
Job title
Leitung
7 results
Now showing 1 - 7 of 7
- PublicationMetadata onlySimulation of Resonances in Power Electronic Circuits for EMC Prediction(2023)
; ;Rathjen, Kai-Uwe ;Landskron, Norman; ; The use of wide-bandgap semiconductors in modern power electronics creates new challenges in EMC. These result, among other things, from high frequencies and steep switching slopes. In addition, parasitic elements of semiconductors, passive components and the printed circuit board can cause resonances, which become noticeable in oscillations. In this work, a possibility is presented to simulate resonances in a power electronic circuit. The circuit used is a series-LC resonant converter with SiC-MOSFETs. An impedance model of the resonant load is generated with consideration of parasitic elements. The accurate simulation is validated by comparison with time domain measurements. EMC measurements of conducted and radiated emissions are done. It is shown that the resonances lead to emissions which can be predicted using the time domain simulation. - PublicationMetadata onlyAnalysis and Discussion of Different Three-Phase dv/dt Filter Topologies and the Influences of Their Filter Parameters on Losses and EMC(2022-10-17)
; ; ; ;Rathjen, Kai-Uwe; Woywode, Oliver - PublicationMetadata onlyInfluence of an Electrically Non-Conducting Heat Sink for Power Semiconductors on Radiated Interferences(Copernicus Publications, 2018)
;Fink, Stephan ;Rathjen, Kai-Uwe ;Fahlbusch, Sebastian; - PublicationMetadata onlyEinfluss eines elektrisch nicht-leitenden Kühlkörpers auf gestrahlte und leistungsgebundene Störungen von Leistungshalbleitern(mesago, 2018)
;Fink, Stephan ;Fahlbusch, Sebastian; ; Rathjen, Kai-Uwe