Identifying EMI sources in power switch commutation

Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2014

Pages: 7Language: englishTyp: PDF

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Bocchiola, C. (International Rectifier Corporation, Via Trieste 71, 27100 Pavia, Italy)
Gorgerino, Andrea; Maurice, Yannick (International Rectifier Corporation, 233 Kansas Street, El Segundo, California, USA)

Electromagnetic interference caused by the commutation of power switches is often not completely understood. In this paper, a mathematical model is introduced which allow to correlate the commutation parameters to the generated EMI spectra. The model is quite generic, in that it can be easily adapted to power mosfets and IGBT transistors. The effect of gate network and device's parameters is analised and some solutions are suggested to alleviate the EMI phenomena.