Multi-load Wireless Charging System Based on Single Resonant Coupling Architecture

The wireless charging system based on the single resonant coupling architecture can he easily developed in combination with the electromagnetic induction type, has the advantages of low cost and long distance of magnetic resonance transmission, and large power, does not need to be fully coupled with the transmitting and receiving coils, and can realize multi-load wireless charging. This paper is designed for multi-mobile device load, based on the principle of electromagnetic induction, designed a wireless charging system based on single resonant coupling architecture. The inverter circuit, resonant circuit and signal generation circuit are constructed by MATLAB. The receiving end uses Mi’s 20W wireless charging. The receiver, from the simulation and experimental aspects, studied the multi-load radio energy transmission system with resonant frequency of 127 kHz. The research results can provide reference for the research and development of wireless charging platform for mobile devices.