Analysis of the Iron Loss of a Planar Integrated Magnetic Component with a Transformer and Inductor

Abstract

A planar integrated magnetic component (PIM) with a transformer and an inductor is effective for switching the power supply. We analyzed the iron loss of the PIM by using the finite element method to calculate the magnetic flux distribution taking account of the magnetic interaction between the transformer and the inductor. As a result, we obtained a more exact value for the iron loss of the PIM, which was lower than that of similar, simply combined components.