Wireless Power Transmission Based on Magnetic Resonance Coupling

Abstract

This paper presents an approximately 5W, 1.4 MHz wireless power transmission circuit based on a near-field coupling from the perspective of two magnetically coupled transmitting and receiving coils. 220V/50Hz AC is supplied to the high-frequency cyclo-converter to provide efficient output power to the load. As a result, 12≈36 V of power is obtained at the receiving coil which is further assessed by the voltage regulator. The overall power consumption of the load is about 5W. For demonstration, circuit parameters in terms of resonance, and impedance matching are calculated. Good agreement between calculated and experimental results is obtained.