부산대학교 도서관

Compared to the much talked about electric vehicle, there is less research on the compensation topology of wireless charging bicycle. Consider the low transmission efficiency under light load which exist in traditional basic compensation circuits, this paper firstly applies the symmetric LCC compensation topology in wireless charging bicycle. The symmetrical LCC topology circuit can switch between constant voltage mode and constant current mode simply by the driving frequency, which can better meet the charging requirements of wireless charging bicycle than the traditional ones. In this paper, firstly, the mathematical model of symmetric LCC compensation topology circuit is established. Then, the analysis of constant current and constant voltage modes are carried out. Finally, the calculation formula of the compensation element is derived. Based on the calculation formula and the known coil parameters, the parameters of the compensation element are designed for simulation verification, and the simulation results are found to be satisfactory.