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Tour WiTricity’s Room of Tomorrow: Wireless Charging That’s Flexible

You probably haven’t heard of WiTricity, but if the company has its way, you will. That’s because WiTricity wants to bring its flavor of wireless charging to your car, your home, and everywhere else. Using a form of power transfer called magnetic resonance, WiTricity can power gadgets on any surface, and do so with a little more convenience than some existing methods.

Powermat is easily the most recognizable company in the sans-wire charging game. In order for its products to charge properly, they must be in contact together, and not just bumping their edges but in full flush contact.

WiTricity’s charging solution requires contact but not quite so much. A smartphone will charge as long its right-side is connected to device with a special copper-coil power transmitter embedded inside. The coil itself is connected to a battery or other power source.

When the power source is activated, the copper coil absorbs electricity, then resonates it through its own magnetic field. A nearby sensor coil absorbs the electricity from the air or between the touching surfaces.

During a demo at CES 2013, WiTricity CEO Eric Giler showed off several ways the company’s technology can be applied to consumer tech products and the home. One example included an Apple laptop with a resonant coils inside that could be used to charge a smartphone just by setting the phone near the notebook (7:00 mark in the video above). Other standouts include a 100W television set powered by a coil located beneath the TV stand (8:22) and a wooden desk wired to power a lamp, wireless keyboard, and any other WiTricity-enabled hardware nearby (10:05) . Giler also showed us how copper coil wired into carpeting can be used to power home appliances, smart phones, even rechargeable batteries (10:30).
More ]laptonmag.com

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