TY - GEN
T1 - Dual-band multi-receiver wireless power transfer
T2 - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
AU - Liu, Ming
AU - Chen, Minjie
N1 - Funding Information:
ACKNOWLEDGMENT The authors would like to thank Andlinger Center for Energy and the Environmentat Princeton University for supporting this work. We also would like to acknowledge Dr. Songnan Yang of Futurewei Inc. for invaluable discussions.
Publisher Copyright:
© 2019 IEEE.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/5/24
Y1 - 2019/5/24
N2 - Wireless power transfer (WPT) via near-field magnetic coupling is an enabling technology for many applications including consumer electronics and electric vehicles. A few WPT standards have been established with frequencies ranging from kHz to MHz. MHz operation offers smaller size and higher tolerance to coil misalignment, and kHz operation offers higher efficiency and higher power rating. This paper presents a WPT architecture with new transmitter and receiver topologies that are reconfigurable for dual-band operation. On the transmitter side, we developed a novel architecture based on the reactance steering network (RSN) which can seamlessly compensate an arbitrary load impedance for radio-frequency (RF) power amplifiers. It can transmit power at two frequencies (kHz and MHz range) with decoupled power modulation. On the receiver side, we developed a reconfigurable dual-band rectifier that can achieve a power density of 300 W/inch at both 100 kHz and 13.56 MHz with very low component count. A dual-band reconfigurable WPT system comprising a dual-band transmitter and multiple dualband receivers has been built and tested. The RSN-based dualband transmitter can efficiently and simultaneously deliver 15 W of power to multiple receivers at both 100 kHz and 13.56 MHz.
AB - Wireless power transfer (WPT) via near-field magnetic coupling is an enabling technology for many applications including consumer electronics and electric vehicles. A few WPT standards have been established with frequencies ranging from kHz to MHz. MHz operation offers smaller size and higher tolerance to coil misalignment, and kHz operation offers higher efficiency and higher power rating. This paper presents a WPT architecture with new transmitter and receiver topologies that are reconfigurable for dual-band operation. On the transmitter side, we developed a novel architecture based on the reactance steering network (RSN) which can seamlessly compensate an arbitrary load impedance for radio-frequency (RF) power amplifiers. It can transmit power at two frequencies (kHz and MHz range) with decoupled power modulation. On the receiver side, we developed a reconfigurable dual-band rectifier that can achieve a power density of 300 W/inch at both 100 kHz and 13.56 MHz with very low component count. A dual-band reconfigurable WPT system comprising a dual-band transmitter and multiple dualband receivers has been built and tested. The RSN-based dualband transmitter can efficiently and simultaneously deliver 15 W of power to multiple receivers at both 100 kHz and 13.56 MHz.
KW - Dual-band wireless power transfer
KW - High frequency power conversion
KW - Reactance steering network
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U2 - 10.1109/APEC.2019.8721837
DO - 10.1109/APEC.2019.8721837
M3 - Conference contribution
AN - SCOPUS:85067090978
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 851
EP - 859
BT - 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 17 March 2019 through 21 March 2019
ER -