Abstract
M.Ing.
High frequency magnetic components have financial and physical advantages compared to low frequency magnetic components. Although high frequency magnetic components have been used for quite some time, the design and analysis of these components remain complicated.This can be ascribed to the effect of eddy currents and thermal constraints due to the smaller cooling area of such components. Planar magnetic components have long been preferred due to the higher manufacturing output, better quality control and the favorable flat shape of the component. Many studies have been conducted on planar magnetic components with respect to the energy storage capacity, air gap shape and placement, low permeability materials, to replace the air gaps, the placing of the conductors in the winding window, etc. The designs that are commonly used for planar magnetic components today, are the ones that are proven to work and not necessarily the ones that are optimal. In this study a thermal model is presented to ease the design of DC inductors. A lot of emphasis is placed on heat extraction resulting from losses in the embedded conductors through the core. This is an unconventional way to
extract heat from the planar structure and leads to a new approach towards design planar inductor design.