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

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

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Sammendrag
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
Oppdragsgiver
  • Norges forskningsråd / 243711
Språk
Engelsk
Forfatter(e)
Institusjon(er)
  • Norges teknisk-naturvitenskapelige universitet
  • SINTEF Energi AS / Energisystemer
År
2018
Forlag
IEEE conference proceedings
Bok
20th European Conference on Power Electronics and Applications 2018
ISBN
978-9-0758-1528-3