Better Understanding EMI Generation of Power Converters

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&quo...

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Bibliographic Details
Main Authors: Musznicki, P., Jean-Luc Schanen, Granjon, P., Chrzan, P.
Format: Conference Proceeding
Language:English
Subjects:
Electromagnetic interference
Frequency domain analysis
Image reconstruction
Noise measurement
Power electronics
Power generation
Signal processing
Switches
Transfer functions
Wiener filter
Online Access:Request full text
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Description
Summary: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
ISSN:0275-9306
2377-6617
DOI:10.1109/PESC.2005.1581758