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Old September 11th, 2013, 08:21 PM   #13786
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The Cota wireless charging system includes a charge-transmitting unit and a charge receiver. The charging unit in the video was only shown briefly, but it appeared to be a pillar-shaped piece of equipment that's about 6 feet tall.
Sounds like a Tesla Coil to me. But according to the article, it operates in the 2ghz or higher band (not too specific). This would transmit power without the fireworks of a usual 60hz Tesla coil, but I'm betting it's not a particularly efficient way to transfer energy.
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