A soft-switching based Inverter Topology for high Efficiency Applications“.
With the advent of SiC-based devices, power losses in inverters have been significantly minimized compared to Si-based IGBTs, thereby resulting in a high level of efficiency. As SiC devices continue to mature, the Rds*A figure of merit continues to improve, bringing down the losses further. However, there are application boundaries such as the maximum permissible voltage slew-rate which still limit the switching performance. Therefore, it becomes necessary to pursue advanced topologies in order to overcome these challenges. This talk presents a soft-switching based topology which enables reaching a higher level of efficiency. Experimental results are also presented to confirm the benefits of the topology.
Dr. Ajay Poonjal Pai obtained his B. Tech in Electrical & Electronics Engineering from NITK Surathkal, India and M.Sc. in Electrical Power Engineering from RWTH Aachen University, Germany. He then pursued his PhD focusing on Silicon Carbide (SiC) power semiconductors for automotive traction inverter applications at the Friedrich Alexander University (FAU), Erlangen-Nuremberg, Germany. From 2015 to 2023, he worked at Infineon Technologies AG, Germany as a Principal Engineer responsible for next-generation automotive SiC technologies and power modules. Since May 2023, he is working at Sanan Semiconductors Munich, responsible for Wide Bandgap (WBG) Innovation and Application Engineering topics. His research interests include e-mobility, SiC semiconductors, power modules and power electronics, and has contributed to numerous invited lectures and conferences worldwide.