Abstract
The study presented in this paper concerns an accurate method of simulation of conducted EMI generated by DC-DC power converters (SMPS), in the frequency range and supplying conditions of European standards (10 kHz to 30 MHz). The aim is to develop a "circuit oriented" CAD tool for EMI problems study. Original models of semiconductors and magnetic components are proposed. Experimental results confirm, with a good accuracy, all simulations on a large frequency range. This method allows to optimise the design and cost of power converters and filters.