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SiC-based Designs vs. Cascaded H-Bridges on Battery-Cell Level – What Will be the Future in Drivetrains?

Date: 11/12/2025
Time: 9:00 am
Presenter: Jens Friebe
Abstract: (Sponsored by PELS TC 4) The webinar will discuss two trends in power converters in the powertrain of electric vehicles. The focus will be on the differences between conventional concepts and new implementations based on cascaded H-bridges based on battery cells or stacks. While SiC-based power electronics are highly integrated, efficient and form the basis of current implementations, battery cell-based solutions are preferred in particular for the reduction of system complexity and the reduction of requirements for electrical machines as well as the elimination of OBCs and EMI measures. The webinar aims to compare the basic technical aspects and show some examples of implementation. An open discussion with the participants is very welcome.

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Friebe, Jens (1)
Jens Friebe (Senior Member, IEEE) received the B.Sc., M.Sc., and Dr.-Ing. degrees in electrical engineering from the University of Kassel, Kassel, Germany. He was responsible for the research area of passive components in power electronics with the Institute for Drive Systems and Power Electronics, Leibniz University Hannover, Hanover, Germany, from 2018 to 2022. Before that, he was with SMA Solar Technology, Germany, in the field of PV-inverter topologies, wide-bandgap semiconductors, magnetic components, control strategies for high switching frequencies, and power electronics packaging, for more than 13 years. He is currently the Head of the Power Electronics Group, University of Kassel. He invented more than 30 granted patents in the field of power electronics.