TY - GEN
T1 - High-Frequency Load-Independent Wireless Power Charging System
AU - Yan, Jiaxin
AU - Zhu, Wenqi
AU - Konishi, Akihiro
AU - Nguyen, Kien
AU - Sekiya, Hiroo
AU - Wei, Xiuqin
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper proposes a load-independent high-frequency wireless power transfer (WPT) system. The proposed system achieves mode switching between constant current (CC) and constant voltage (CV) output modes, which can be applied to rechargeable batteries. In the proposed system, a single switch component is added on the receiver side to change the topology of the compensation circuit. As a result, the switching between CC and CV modes is accomplished on the receiver side, which means wireless communication about the load-information feedback from the receiver to the transmitter becomes unnecessary. By achieving zero-voltage switching (ZVS) in both CC and CV modes through the load-independent operation, the proposed system achieves high power-delivery efficiency even at high frequencies. Therefore, the proposed WPT system contributes to cost reduction, system simplification, and circuit downsizing. The experimental results agreed with the analytical predictions quantitatively, which verified the effectiveness of the proposed circuits.
AB - This paper proposes a load-independent high-frequency wireless power transfer (WPT) system. The proposed system achieves mode switching between constant current (CC) and constant voltage (CV) output modes, which can be applied to rechargeable batteries. In the proposed system, a single switch component is added on the receiver side to change the topology of the compensation circuit. As a result, the switching between CC and CV modes is accomplished on the receiver side, which means wireless communication about the load-information feedback from the receiver to the transmitter becomes unnecessary. By achieving zero-voltage switching (ZVS) in both CC and CV modes through the load-independent operation, the proposed system achieves high power-delivery efficiency even at high frequencies. Therefore, the proposed WPT system contributes to cost reduction, system simplification, and circuit downsizing. The experimental results agreed with the analytical predictions quantitatively, which verified the effectiveness of the proposed circuits.
KW - constant current output
KW - constant voltage output
KW - load-independent
KW - Wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=85197430925&partnerID=8YFLogxK
U2 - 10.1109/WPTCE59894.2024.10557276
DO - 10.1109/WPTCE59894.2024.10557276
M3 - Conference contribution
AN - SCOPUS:85197430925
T3 - Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
SP - 542
EP - 545
BT - Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
Y2 - 8 May 2024 through 11 May 2024
ER -