Abstract

Practical and safely charge of the electric vehicle become important as their use increases. In Turkey, the use of electric bicycles (less than 250 W), which do not require special driving licenses, has increased remarkably in recent years. In this study, a system for wireless charging has been developed to practice the charging of e-bikes. The charging of the 36V battery bank on the e-bike is achieved with 72% overall system (DC/DC) efficiency. The air gap is 75 mm due to the wheel diameter and the bicycle chassis. The switching frequency on the transmitter side is selected as 20 kHz for inductive power transfer. On the secondary side, a charge regulator is designed to charge the battery according to its characteristic. The constant current and constant voltage modes can be performed according to battery characteristic. Besides being practical and reliable, the overall performance of the developed system can compete with the conventional cable charging system.

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