INDUCTIVE WIRELESS POWER TRANSFER DEVICE WITH IMPROVED COUPLING FACTOR AND HIGH VOLTAGE ISOLATION

An inductive wireless power transfer device includes a primary winding assembly and a secondary winding assembly separated from the primary winding assembly by a distance. A first magnetic core cap is on the primary winding assembly and a second magnetic core cap is on the secondary winding assembly so as to magnetically couple together the primary winding assembly and the secondary winding assembly. A multi-section high voltage (HV) isolator is interposed between the primary winding assembly and the secondary winding assembly. The multi-section HV isolator includes at least one individual insulator section comprising a dielectric material, and at least one intermediate magnetic core comprising a ferrite material interposed between the primary winding assembly and the secondary winding assembly.