Automated frequency tracking system for efficient mid-range magnetic resonance wireless power transfer

作者：Kim Nam Yoon^*; Kim Ki Young; Kim Chang Woo

来源：Microwave and Optical Technology Letters, 2012, 54(6): 1423-1426.

DOI：10.1002/mop.26858

• wireless power transfer
• magnetic resonance coupling
• impedance matching
• frequency tracking
• out-band communication

An automated frequency tracking system is implemented for an efficient mid-range magnetic resonance wireless power transfer based on an analysis of a wireless power link consisting of transmitting and receiving resonators placed in a strong coupling region.The proposed tracking system is designed to maintain a power transfer efficiency of more than 70% for any transfer distance range by directly monitoring the efficiency via out-band communication. The advantage of the proposed system over other frequency tracking schemes is that the performance of the resonators and power amplifier can be applied to the tracking algorithm.

• 出版日期2012-6