Saturable inductors for superior reflexive field containment in inductive power transfer systems

Abstract

Inductive power transfer has many applications that range from electric vehicle charging to robotics. In dynamic applications, it is required that the segmented transmitter coil transfer power to a moving receiver coil. One proposed method to achieve this is using the reflexive field containment approach presented in the literature. In this work, we improve on the concept by adding a saturable inductor to the system to maximize the difference between the coupled and uncoupled currents in the transmitter coil.