Ferrite Inductor Cores for MH z‐Frequency Applications

Tackling thermal management and power consumption challenges, one aims to suppress inductor core power loss (CPL), as one of the major sources of inefficiency in these systems and is the main focus of this chapter. Novel designs and synthesis strategies are proposed for addressing dissipation mechanisms responsible for efficiency of inductor cores at high operating frequencies. Findings presented show remarkable suppression of the CPL by means of significantly reducing eddy currents and residual losses in MnZn-ferrite-based nanocomposites. The chapter presents a review of spinel ferrite compositions and structures with special attention paid to grain boundary chemistry and structure and its role in determining inductor performance in power generation, conversion, and conditioning applications. Ferrite compositions and ceramic processing protocols, including complex sintering practices, are reported and discussed at length as to their impact upon frequency-dependent performance.