Abstract

For wireless power transfer (WPT) systems transferring high power, both high efficiency and low magnetic field leakage have been regarded as the main design objectives to be achieved. For the first time, in this paper, we propose a new concept of hybrid loop-array structure and its design procedure to achieve high efficiency and low magnetic field leakage simultaneously in high-power WPT system. The simulation results show that the proposed hybrid loop-array design helps increase the efficiency while reducing the leakage magnetic field level of the WPT system transferring 1 kW load power at 60 kHz resonance frequency.

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