Accurate Switching Energy Measurement of Wide Band-Gap Semiconductors at Low Current
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091292
Proceedings: PCIM Europe 2023
Pages: 8Language: englishTyp: PDF
Authors:
Zappulla, Gustavo S.; Andrade, Marco Vinicio T. (IRT Saint-Exupery, France & Graduate Program in Electrical Engineering, Federal University of Minas Gerais (UFMG), Brazil)
Cougo, Bernardo (IRT Saint-Exupery, France)
Morais, Lenin M. F. (Department of Electronic Engineering, Federal University of Minas (UFMG), Brazil)
Abstract:
Several applications require efficiency-oriented design, in which high performance wide bandgap semiconductors are used in low power converters. Precise switching loss estimation at low current is essential to achieve accurate design, although it is not frequently addressed in the literature. This paper reviews dynamic characterization methods with focus on wide bandgap technologies. The Double Pulse and Modified Opposition methods are compared in order to highlight advantages and limitations of each one, especially at low current. Both are verified through simulations and in a real test bench, whose results are compared with datasheet curves and evaluated through a case study.