A Wireless Power Transfer System Using a Double DD Quadrature Coil Structure

This paper presents the evolution of an inductive wireless power transfer using a multicoil system. The double DD coil structure on transmitter and receiver side two perpendicular bipolar coils is upgraded with additional nonpolar quadrature coil. proposed can be called DDQ structure. All three are not coupled, due to nature directional If misaligned one another, system behaves as separate, uncoupled IPT systems. main advantage topology additionally increased density misalignment tolerance. Additionally, when perfectly aligned, pad transmit different voltages excited frequencies. In case this paper, were by same frequency. was evaluated experimentally compared