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Adaptive frequency with power-level tracking system for efficient magnetic resonance wireless power transfer

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4 Author(s)
Kim, N.Y. ; Future IT Res. Center, Samsung Adv. Inst. of Technol., Yongin, South Korea ; Kim, K.Y. ; Choi, J. ; Kim, C.-W.

To supply the optimum amount of required power to a load device, an adaptive frequency and power-level tracking system is proposed for an efficient magnetic resonance wireless power transfer in the high frequency band. As a result, the proposed system is able to maintain a power transfer efficiency (PTE) of more than 75% with an optimum received power-level of 88%W for any transfer distance within 0.6%m by directly monitoring the PTE and received power-level via wireless communication.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 8 )