Magnetic Materials and Components
Technical Dialogue Session
Devices and Components II
nano-composite inductors, magnetic materials, magnetic components, PoL power converters
This paper evaluates the performance of a novel nano-composite core inductor. In this digest, a brief explanation of the superparamagnetic magnetite nanoparticle core is given along with magnetic characterization results and simulated design parameters and dimensions. A nearly flat relative permeability (μr) of around 5 is measured for the magnetic material to 1 MHz. A synchronous buck converter with nano-composite inductor was constructed and evaluated; the converter demonstrates a 3% improvement in conversion efficiency at higher currents (10% reduction in electrical losses), compared to an identical circuit with benchmark commercial ferrite inductor.