Wireless Power Transfer circuit for e-bike battery charging system

In this paper a Serie Series-Resonant Inductive Power Transfer (SS-RIPT) circuit for wireless e-bike battery charger is proposed. The system architecture is accurately described, while highlighting the main features of a suitable design procedure. A simulation model is developed in PSIM software to verify the circuit is fully functional. A full-scale proptotype of a 80 W battery charger has been realized, with particular attention to the layout optimization in order to minimize weight and volume of the final product. Moreover, it is equipped with two XBee-Pro S2 radios to also obtain a wi-fi communication between the primary and secondary side. Experimental tests carried out on the prototype confirm the effectiveness of the proposed design and control approach.