Low Copper Loss and High Efficiency of Wireless Power Transmission Coil using Magnetic Flux Path Control Technology

Abstract

　This paper describes the principle of AC resistance reduction using magnetic flux path control technology and its application. Applying magnetic flux path control technology to each coil in power transmission can improve the transmission efficiency and reduce the heat generation of the coil. By increasing the relative permeability of the magnetic composite material used for the magnetic flux path control technology from around 10, further improvement in efficiency and lower heat generation can be expected.