Flexible switching speed control to improve switching losses and EMI by a gate driver with adjustable gate current

Conference: CIPS 2014 - 8th International Conference on Integrated Power Electronics Systems
02/25/2014 - 02/27/2014 at Nuremberg, Germany

Proceedings: ETG-Fb. 141: CIPS 2014

Pages: 6Language: englishTyp: PDF

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Authors:
Bauch, Julia; Lindemann, Andreas (Otto-von-Guericke-University Magdeburg, Institute of Electric Power Systems, Chair for Power Electronics, Universitaetsplatz 2, 39106 Magdeburg, Germany)

Abstract:
IGBT switching speed defines the performance of the power semiconductor device as well as it influences the efficiency and the electromagnetic emissions of a power converter system. Thus, a driver which allows to flexibly tune the IGBT switching speed through control of transient voltage and current slopes is desirable to adjust the trade-off between power device’s switching losses and EMI behaviour. This paper describes the application of a gate driver with adjustable gate current for flexible switching speed control in a power converter system and the benefit obtained in switching losses and conducted EMI compared to a standard IGBT gate driver.