Fujitsu Jumps on Wireless Charging Bandwagon
Companies like Energizer, Powermat USA, and now Fujitsu are in a bid to help consumers get rid the cable clutter for their mobile devices through wireless charging technology. Taking it one step further, Fujitsu claims its technology also offers the ability to design charging systems in 1/150th the time currently required, both shortening development time and paving the way to integrating wireless charging functions into mobile phones.
As it currently stands, most wireless charging technology consists of electromagnetic induction and magnetic resonance, which has been used in cordless phones and other devices.
"The drawbacks are that the method only works over short distances, and the power transmitter and power receiver need to be in alignment, so it is effectively no different than using a charging station with a wired connection," Fujitsu explains.
"By contrast, the magnetic resonance method, which was first proposed in 2006, uses a coil and capacitor as a resonator, transmitting electricity through the magnetic resonance between the power transmitter and power receiver."
If Fujitsu's rhetoric leaves you cross-eyed, don't worry about it -- the gist of it is that Fujitsu's wireless charging technology can transmit electricity over a range of up to several meters, and a single transmitter can be used to power multiple devices. Fujitsu is thinking beyond just cell phones and MP3 players here, the company claims potential applications even include electric cars.
See here for even more geeky details.

Image Credit: Fujitsu
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Biceps
September 13, 2010 at 12:35pm
I'm not so sure about this one, folks. While the convenience of having my phone charge in my pocket while I sit on the couch has its plusses, the size of the magnetic field they are talking about it a little freaking.
Will gramp's pacemaker stop working if he walks into the field created by this thing? Will my cats start growing third eyes? I know we are surrounded by EMF radiation ALL the time, but putting something with the ability to transmit that much power through the air (and my body) is a little disconcerting.
Don't think I'll be buying.
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