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Real wireless charging coming soon, charge devices from a distance

True wireless charging is coming closer to being a reality. Scientists can now transfer power over 20cm with surprising efficiency.

@wesjanson99
Published Tue, Jan 26 2016 3:06 PM CST   |   Updated Mon, Oct 19 2020 8:16 PM CDT

Wireless Power Transfer, of Tesla fame, is about to become a reality. His vision of actually transmitting power to charge devices is almost here.

Real wireless charging coming soon, charge devices from a distance | TweakTown.com

Tesla's original design

Wireless charging is currently limited to simply not having to plug something physically into your phone. You still need to make contact with something, like a pad, to charge that battery. But soon, we'll have true wireless charging, where that precious power is beamed through the air to your device. From a distance.

Scientists from ITMO University and the Giricond Research Institute have just made a pretty substantial breakthrough in transferring power over distances of around 20cm. That might not seem like much, but it's a far cry from having to put your phone down on a Qi pad. And their methods have only a small decrease in power efficiency, with over 80% of the power transmitted being transferred.

Their method of wireless power transfer uses resonance coupling, which works with two copper coils resonating on the same frequency, coupled with magnets, to transfer the small amounts of power. The magnets are used so that there's little effect on human flesh, and other objects too. The increased efficiency means that we're closer to having such devices in our homes. Just imagine being able to charge your devices just be being in the room with this technology.

Jeff grew up in the Pacific Northwest where he fell in love with gaming and building his own PC’s. He's a huge fan of any genre of gaming from RTS to FPS, but especially favors space-sims. Now he's stepped into the adult world by becoming a professional student looking to break into the IT Security world. When he’s not deep in his studies, he’s deep in a new game, revisiting an old game, or testing the extreme limits of his own PC. He's now a news contributor for TweakTown, looking to bring a unique view on technology and gaming.

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