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History of wireless power supply

       At the 2009 Ted global conference, American wireless power company successfully used the coil resonance principle to realize wireless power transmission, charged two mobile phones in the air, and turned on a TV without wires.
       In January 2010, Haier launched the world's first "tailless TV" at the 43rd International Consumer Electronics Exhibition (CES), which uses the wireless power transmission technology invented by MIT and uses the principle of "resonant inductive coupling (magnetic coupling resonance)" to realize wireless power supply.