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History of wireless power supply

       Do you know the history of wireless power supply? Where is the origin of wireless power supply?
       At the 2009 Ted global conference, wireless power company successfully realized wireless transmission by coil resonance, charged two mobile phones separately and opened a TV without wires.
       In January2010, Haier launched the world's first "no tail TV" at the 43rd International Consumer Electronics Exhibition (CES), which used the wireless transmission technology invented by MIT and realized wireless power supply by using the principle of resonance induction coupling (magnetic coupling resonance).