Positionnement des bobines de transformateurs de puissance minimisant les pertes cuivre

This paper deals with the positioning of parallel windings in a high-frequency power transformer. Analysis of copper losses due to skin and proximity effects is performed in order to choose the best configuration of the turns inside the winding area. Initially results are a direct application of Dowell's formula. Later, FEA simulations confirm the relationship between current frequency, core window width and winding position.