Optically-coupled Switched-mode Converter for Smartphons Wireless Charging Application

A novel LWPT system for smartphone wireless charging application is presented in this digest. By pulsing the laser, the LWPT system is abstractly modeled as an optically coupled switched-mode DC/DC converter. Therefore, only passive devices (e.g., inductor) are required in the receiver circuit. As a result, more compact and efficient system can be achieved, which is favorable for smartphones. The simulation results are provided in this paper to validate the effectiveness of the proposed approach.