A novel method of measurement of loss in a track of a turn of a planar transformer for induction heating applications

2D finite element modeling (FEM) was performed for three different primary turns' structures; full coil, a turn with four parallel tracks and our Litz planar turn; to minimize losses. Simulation results show that the planar Litz conductor can lead to a lower AC resistance. The performance of this Litz structure is also verified by measurements on experimental prototypes.