1D magnetic component model for planar structures

1D magnetic component models are very useful to study particular cases in which 1D approximations can be assumed. The field distribution can be considered as 1D when the magnetic field (H) shows negligible values in two of the three dimensions, and the magnitude of the nonzero coordinate keeps constant along this 1D direction. Therefore, 1D models should be modified in order to be used with planar transformers, because their magnetic field vector has a constant direction, but its magnitude is not constant along that direction. This work presents a 1D model for planar magnetic transformers. Since those components are widely applied this procedure can become a useful analysis tool. Some comparisons between 2D approaches and the proposed 1D model have been carried out in order to show the accuracy of the proposed method.