Modeling and analysis of integrated magnetic components

A complete modeling approach of integrated magnetic components comprising a transformer and filter inductors is presented in this contribution, which is verified on a four winding component. Impacts of the center leg and outer leg air gaps on inductances, coupling factor and output current ripple are discussed. Analytical and FEM modeling results based on geometrical, material and winding data are compared to experimental results. The complete modeling of the integrated magnetic component, also required for input and output filter design, leads to a simplified integration into simulation tools enabling pre-optimization before breadboarding.