Magnetic components are ubiquitous in any power supply, from power transformation to filtering. The improvement in semiconductor technology of the last decades have provoked an increase in the switching frequency of the power devices, which have made the design of magnetic component the bottleneck of many products, as the classic methods of designing do not take into account the electromagnetic effects that have always been there, but could be ignored at lower frequencies. This seminar presents the fundamentals of the physics used in magnetics, focusing on an energy point of view: By understanding how and where the energy flows in magnetic devices, we can better model and predict the higher frequencies effects and take advantage of them to design our converters. The first block presents those fundamentals, explaining the physical concepts and the characteristics of the ferromagnetic materials that make them happen, and where the energy flows and is stored in an inductive component. The second block describes the parts of a real world magnetic and what are they used for. The third block describes the high level effects happening in these components and how we can predict their value.
