Wireless single contact power delivery
2015 IEEE Wireless Power Transfer Conference (WPTC)(2015)
Abstract
We expand on our recently developed single contact transmission method and apply it toward short-range wireless power delivery. The connection between a conductive surface and a receiver, which was directly connected in our initial system, can be made capacitive by extending the receiver a short distance off the surface. This allows the system to function in a purely wireless mode. We demonstrate the wireless transmission of power to a 25 W load at varying distances from an aluminum foil sheet. The transfer efficiency is given with respect to receding distance from the sheet with an average efficiency of 80% over a 3 cm separation for the experimental system.
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Key words
Wireless,single contact,transmission,quarter wave
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