Accurate modeling of layout parasitic to forecast EMI emitted from a DC-DC converter (original) (raw)
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IET Science, Measurement & Technology, 2017
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EMI modeling of power converters is crucial to develop EMI attenuation solutions. Recently, more and more modeling and mathematical analysis of electromagnetic interference (EMI) sources and propagation path had allowed a better understanding of EMI generation mechanism. Calculation times and accuracy determine the efficiency of EMI models in the studied circuit frequency range. In this paper, a priori model (circuit-based model) for predicting the spectra of conducted interferences in a DC/DC converter was developed in the scope of reducing calculation times of temporal simulations. The proposed new approach for high-frequency disturbance estimation is based on the knowledge of circuit parasitic elements and semiconductor devices parameters. A good tradeoff between simulation time and accuracy was registered; this is considered as an interesting step for power converters design. Keywords Electromagnetic compatibility • Time-domain analysis • Power system transients • Power system simulation • DC/DC power converters • modeling List of abbreviations C p The CM propagation path dI F /dt Direct current slope dV ds /dt MOSFET voltage slope e g Driving signal B Leila Fakhfakh
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IEEE Access
One of the most challenging and interesting field in power electronics is the ability to mitigate the Electromagnetic Interference (EMI). A natural source of EMI includes the atmospheric discharge/charge phenomena and extra-terrestrial radiation. Man-made source of EMI are line radiation, auto ignition, radio frequency interference and power lines. Suppression of EMI and enhancing the Electro Magnetic Compatibility (EMC) has become essential in high frequency power electronic converters. This review article is a one stop solution for new researchers and practitioners to understand about the effects of EMI and its suppression techniques in detail.