WiTricity- Technology for Wireless Electricity
The makers of PowerBeam, which is being showcased at a gadget show in Las Vegas this week, believe their invention will make the word 'recharge' redundant.They claim their technology – billed as WiTricity – will enable any gadgets which use batteries or power cords to be powered by electricity supplied by an invisible beam.
Similar in design to the way wireless hubs allow access to the internet without the need for wires, the PowerBeam could revolutionise the way laptops, music systems and other household electrical items are powered."The optical technology turns electricity into optical power," the creators say."That power is then beamed across open space into a receiver. Similar to a solar cell, the receiver turns the optical power back into electricity. Whatever device is attached to the receiver is powered without any wires."
The technology can currently send about 1.5 watts of power to a solar cell situated 10 metres away and PowerBeam's co-founder David Graham suggests this can be increased without difficulty. An average laptop uses between 30 and 50 watts.Fears have been raised about the health consequences of using wireless technology such as this, but these have been dismissed.
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Similar in design to the way wireless hubs allow access to the internet without the need for wires, the PowerBeam could revolutionise the way laptops, music systems and other household electrical items are powered."The optical technology turns electricity into optical power," the creators say."That power is then beamed across open space into a receiver. Similar to a solar cell, the receiver turns the optical power back into electricity. Whatever device is attached to the receiver is powered without any wires."
The technology can currently send about 1.5 watts of power to a solar cell situated 10 metres away and PowerBeam's co-founder David Graham suggests this can be increased without difficulty. An average laptop uses between 30 and 50 watts.Fears have been raised about the health consequences of using wireless technology such as this, but these have been dismissed.
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Labels: electricity, inventions
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