Research on Wireless Power Transfer of Magnetic Resonant Coupling Using Magnetoplated Wire

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Improvement in Q value and position information of receiving coil are required for improvement in transmission efficiency of wireless power transfer of magnetic resonant coupling. To improve the Q value of coil, project leader proposes the use of magnetoplated wire. The transmission efficiencies of coils using the conventional and magnetoplated wire are 69.2% and 77.7%, respectively; thus, the efficiency of the coil using magnetoplated wire is 8.5% greater than that of the coil using conventional wire. Also, for acquisition of the position information, the leader proposes the distance sensor using magnetic resonant coupling with switching function of matching circuit and achieves 1.5 times the detection distance of conventional distance sensor.