Characterization of a high power nanocrystalline transformer

Nano-crystalline ferro-magnetic core material has very favorable magnetic properties for high frequency power applications. This paper investigates the properties of a nano-crystalline transformer with multiple secondary windings through experimental evaluation over a range of frequencies. Design considerations are addressed with special attention focused on scaling with respect to frequency, cores losses, and effective AC resistance of the windings. The data derived from the experimental evaluation helps determine a transformer optimal design for the best power density.