전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2019년도 전력전자학술대회
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- Pages.142-144
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- 2019
E-모빌리티 응용을 위한 6.78MHz 정전압 정전류 무선 충전기
A 6.78 MHz Constant Current and Constant Voltage Wireless Charger for E-mobility Applications
- Tran, Manh Tuan (Department of Electrical Engineering, Soongsil University) ;
- Choi, Woojin (Department of Electrical Engineering, Soongsil University)
- 발행 : 2019.07.02
초록
Nowadays, multi-MHz wireless power transfer (WPT) system has received a great concern of study due to its desirable characteristics such as user convenience, system compact and better safety as compared to the conventional DC-DC with cord. This paper presents a solution for WPT Lithium Batteries charger with Constant Current (CC) and Constant Voltage (CV) charging process. The proposed system consists of a high frequency class D power amplifier, a pair of PCB coil, transformable high-order resonant network and a full-bridge rectifier. The charger can be implemented CC /CV charging profile thanks to automatic reconfigurable resonant compensator. Therefore, the battery can be fully charged without the help of an additional DC/DC converter. The simulation and 50W-6.78-MHz hardware experimental results are presented to verify the feasibility of the proposed method and to evaluate the performance of the proposed wireless battery charger.