Measurements and Modeling of Conducted EMI in a Buck Chopper

Abstract:

The high increase of power electronic devices use (speed control, lighting, heating, automotive, etc...) requires the electrical, thermal and electromagnetic behavior studies. In this paper we developed a model to predict the conducted EMI level in a DC/DC converter. Measurement methodology was done using a network analyzer in order to evaluate the equivalent impedance model of each converter element. The full circuit model is then implemented in the Saber® simulation tool using time domain simulation followed by fast Fourier transformation (FFT) in the frequency range 150 KHz -100 MHz. A comparison between simulation results and those obtained by measurements is used to validate the developed model.

• Periodical: Advanced Materials Research (Volume 324)
• Pages: 419-422
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.324.419
• Online since: August 2011
• Authors: Leila Fakhfakh, Slim Abid, Anis Ammous
• Keywords: Buck-Converter, Circuit Model, Common Mode, Differential Mode, EMI, Fast Fourier Transform (FFT)

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