With magnetic resonance can be up to 30 cell phones charged wirelessly at the same time and in the distance show Korean researchers.
Earlier methods to charge mobile phones wirelessly based on the phone is placed on a charging plate.
But now, researchers at the South Korean KAIST developed a charging method based magnetic resonance, which demonstrated previously to transmit power several feet away.
The technology called Magnetic Dipole Coil Resonant System, DCRS. By adding coils in cross has created rotating magnetic field, causing the cell phones can be charged in six degrees of freedom.
They made a square meter plate, which makes it possible to load up to 30 cell phones with capacity 1 watt each, or 5 laptops with capacity 2.4 watts while. Charging is possible at distances up to 0.5 meters.
According to Professor Chun T. Rim at KAIST working technology at very low magnetic fields which is within the safety regulations.
The test results have been published in the journal IEEE Transactions on Power Electronics.
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