Implementation of Current-Source Gate Driver with Open-Loop Slope Shaping for SiC-MOSFETs
Conference: PCIM Europe digital days 2021 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/03/2021 - 05/07/2021 at Online
Proceedings: PCIM Europe digital days 2021
Pages: 8Language: englishTyp: PDF
Authors:
Riefer, Manuel; Winkler, Jonathan; Strache, Sebastian (Robert Bosch GmbH, Automotive Electronics, Germany)
Kallfass, Ingmar (University of Stuttgart, Institute of Robust Power Semiconductor Systems (ILH), Germany)
Abstract:
This paper shows the possibilities of optimizing the switching behavior of wide-bandgap semiconductors by using current-controlled open-loop slope shaping gate drivers. Slope shaping enables a reduction of voltage overshoot while maintaining the same switching losses. Hence, a more efficient usage of, in this case, SiC-MOSFETs is achieved. This paper includes a setup proposal for the gate current profile as well as an analysis of the operating point dependency of the gate current profiles.