Handling differential mode conducted EMC in modular converters
Résumé
This paper presents the analysis and management of differential mode conducted EMI in modular converters made from associations of standard conversion cells. Two main configurations, ISOP and IPOS are studied with the objective to define a generic EMI management technique, independent from the number of conversion standard cells implemented. First, analysis is carried out from a theoretical point of view based on simplified models. Second filtering solutions are introduced and compared. Especially, centralized versus distributed filtering techniques are compared with the objective to find generic solutions. The results are compared and validated with practical characterizations.
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