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Wireless power transfer (WPT) technology enables convenient and automatic battery charging for unmanned aerial vehicles (UAVs). However, in WPT charging systems, strong electromagnetic fields (EMFs) are inevitably generated and the power source contains a wide range of harmonics. In this paper, we propose an automated resonant wireless power transfer charger for UAV with three-phase magnetic field...
The wireless power transfer (WPT) system for electric vehicle (EV) typically has a pair of two magnetically coupled coils with the relatively large air gap between them. The time-varying currents flowing through the coils produce the intense magnetic near field around the coils which is inevitable to transfer the high power wirelessly. In this paper, we investigate the design of the coils with magnetic...
The hand-held resonant magnetic field charger (HH-RMFC) is a convenient equipment of charging the batteries without any electrical contact. Due to high coupling coefficient of HH-RMFC, the single phase power inverter with square wave encounter relatively small reactance at its harmonic frequencies. Thus, the current flowing through the Tx and Rx windings can be distorted. The distorted current with...
Inductive charging is a convenient method to transfer electrical power from a source to the batteries without any electrical contact. The problem is that inductive charging technologies may have electromagnetic compatibility (EMC) issues caused by leakage magnetic field. In this paper, an inductive charger design for electric vehicles (EVs) named as Handheld Resonant Magnetic Coupling Charger (HH-RMCC)...
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