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Driver stage implementation with improved turn-on and turn-off delay for wide band gap devices

Abstract

This paper presents a driver topology intended for WBG devices with the goal of improving the switching performance. In particular, the initial delay time of the switching transient was targeted. In high power and high frequency bridge converters, the dead time causes output voltage waveform distortion and increases losses. Shorter delay time leads to shorter dead time requirement. Simulations show that the delay time can be minimised by correctly implementing the suggested driver stage. For the experimental validation, an improvement of 6-8 ns was demonstrated while keeping the same di/dt and dv/dt as a conventional gate driver. The improvement increases with increasing gate resistance

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 243711

Language

English

Author(s)

Affiliation

  • Norwegian University of Science and Technology
  • SINTEF Energy Research / Energisystemer

Year

2018

Publisher

IEEE conference proceedings

Book

20th European Conference on Power Electronics and Applications 2018

ISBN

978-9-0758-1528-3

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