Nanocrystalline Block Cores for High-Frequency Chokes

Nanocrystalline Fe-based soft magnetic materials are more and more common not only in power electronic, but also in power energy conversion systems. The use of different treatments (the methods of stacking and annealing at/without magnetic field presence) on magnetic cores allow to achieve their predefined magnetic properties. This fact increases the level of the applicability such magnetic cores. Different concepts of nanocrystalline magnetic block cores were discussed in this paper. Obtained results were compared with magnetic cores used up to nowadays (made of amorphous and Fe-Si steel).