Design Method for the Minimization of CM Inductor Volume with Consideration of Core Saturation in EMI Filters

Archive ouverte : Communication dans un congrès

Zaidi, Bilel | Videt, Arnaud | Idir, Nadir

Edité par HAL CCSD

International audience. EMI filters are necessary in many applications in order to meet EMC standards, which significantly increase overall cost and volume mainly because of the common-mode choke. In this paper, a new method to calculate the minimum volume of the inductor is proposed. It takes into account core saturation issues that may greatly impact inductor volume. Consequently, it is shown that in some cases, increasing the inductance up to an optimal value can significantly reduce the filter volume in addition to further enhancing filter attenuation. Besides, determination of the filter resonance frequency with nano crystalline material is worked out to support the analysis.

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