TY - GEN
T1 - Rigorous design of magnetic-resonant wireless power transfer links realized with two coils
AU - Costanzo, Alessandra
AU - Dionigi, Marco
AU - Mastri, Franco
AU - Mongiardo, Mauro
AU - Russer, Johannes A.
AU - Russer, Peter
N1 - Publisher Copyright:
© 2014 European Microwave Association.
PY - 2014/12/15
Y1 - 2014/12/15
N2 - Magnetic resonant wireless power transfer has been typically realized by using systems of coupled resonators. We show that the essential elements are only the coupled inductances. In fact, by starting from coupled inductances, and by introducing their conjugate image impedances, we can derive the series and parallel matching topologies that realize maximum wireless power transfer. By sacrificing some efficiency we show that we can realize a matched (lossless case) mid-range wireless power transfer link by using just one inductive coil on the secondary side and having the required capacitances all on the primary side (or viceversa). The proposed topology greatly simplifies the design; in addition, when tuning is required due to coils misalignment or to link distance variation, it can be attained without the need for a feed-back through the communication link. A preliminary experimental verification of the proposed approach is also presented.
AB - Magnetic resonant wireless power transfer has been typically realized by using systems of coupled resonators. We show that the essential elements are only the coupled inductances. In fact, by starting from coupled inductances, and by introducing their conjugate image impedances, we can derive the series and parallel matching topologies that realize maximum wireless power transfer. By sacrificing some efficiency we show that we can realize a matched (lossless case) mid-range wireless power transfer link by using just one inductive coil on the secondary side and having the required capacitances all on the primary side (or viceversa). The proposed topology greatly simplifies the design; in addition, when tuning is required due to coils misalignment or to link distance variation, it can be attained without the need for a feed-back through the communication link. A preliminary experimental verification of the proposed approach is also presented.
UR - http://www.scopus.com/inward/record.url?scp=84920735035&partnerID=8YFLogxK
U2 - 10.1109/EuMC.2014.6986458
DO - 10.1109/EuMC.2014.6986458
M3 - Conference contribution
AN - SCOPUS:84920735035
T3 - European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference
SP - 414
EP - 417
BT - European Microwave Week 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 44th European Microwave Conference, EuMC 2014 - Held as Part of the 17th European Microwave Week, EuMW 2014
Y2 - 6 October 2014 through 9 October 2014
ER -