Wireless Battery Charger with Power Factor Correction for Electric Bike

The Sustainable Development Goals (SDGs) of the UN are designed to lower carbon emissions and encourage environmentally friendly business and transportation practices. Electric bikes are becoming more and more well-liked as green modes of transportation due to their reduced carbon footprint. Typical Electric Bike (E-Bike) battery chargers, however, have concerns with a low power factor resulting in high Total Harmonic Distortion (THD) levels, affecting the power quality of the supply system. Therefore, this paper presents an improved rectifier circuit that incorporates Active Power Filter (APF), Wireless Power Transfer (WPT), Resonant Inductive Power Transfer (RIPT) technologies, and a battery charger at constant current and constant voltage. The proposed wireless battery charger with power factor correction can produce a high power factor that can reduce reactive power by using the active power filter method to compensate supply current in phase with supply voltage, a convenient charging system without the need for cables, and the CCCV charging method to prevent overcharging. The proposed switching algorithms and circuit design were assessed using computer simulation models and actual test rigs. Selected results are presented to verify the proposed wireless battery charger system.