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36th IEEE International Power Electronics Specialists Conference (PESC 2005)., Recife : Brazil (2005)
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Better understanding EMI generation of power converters
Piotr Musznicki1, Jean-Luc Schanen2, Pierre Granjon1, Piotr Chrzan3

This paper describes how the use of a specific signal processing method can help understanding the EMI generation of a switched mode power supply. It provides an equivalent system between a supposed disturbance source and the actual EMI signal. To identify this system, the "Wiener filtering" method is applied. Both experimental and simulation waveforms may be used. This method is illustrated in the simple example of a boost switching cell. The application to more complicated power electronics structures with several switches is also possible.
1:  LIS - Laboratoire des images et des signaux
2:  LEG - Laboratoire d'électrotechnique de Grenoble
3:  Politechnika Gdanska