Résumé

This paper presents the design and the experimental characterisation of a Printed Circuit Board (PCB) based three-phase coupled inductors. The prototype is meant to be implemented in an interleaved buck converter (IBC). The main objective is to push the efficiency and power density forward compared to more conventional PCB planar un-coupled inductors. The results of the optimisation procedure combining Finite Element Analysis (FEA) and analytical study are analysed. This paper also describes the practical implementation with the corresponding PCB layout and stack-up. Then, the results of the experimental characterisation, including losses measurement using a flow-calorimeter set-up are also presented.