Contactless Inductive Charging using Ferrite and Glass Substrates: Numerical Modelling and Physical Prototype Measurements

Abstract

In this study, the applicability of wireless inductive charging is investigated using both finite element method numerical modeling and hardware prototyping. The impact of various design parameters, including but not limited to a number of turns, coil structure, and the substrate type, were investigated. Ferrite substrates were considered along with glass substrates. The magnetic field intensity was simulated in various conditions using Comsol Multiphysics. Alternatively, the overall power transfer efficiency was measured experimentally across ten different couples of coils. The total delivered power reached 3.2 Watts through 2.2 m.