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In this paper wireless charging using a resonant auxiliary winding is evaluated, showing that a substantial increase of the power level is possible with the extra winding. The coils have been evaluated theoretically and by means of FEM-analysis. Further on verification has been done on a laboratory 6 kW-charger. The charger has been used for charging the battery of a small test vehicle.
In this paper so called wireless charging is investigated, primarily considering applications such as charging hybrid or electric vehicles at stand-still. The base concept investigated is a sending and a receiving coil at various designs. The theory behind wireless energy transfer and the needed components are described and analyzed, showing how design aspects, frequencies, height and vertical displacement...
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