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Electric field coupled wireless power supply

       The principle of electric field coupling wireless power supply: it uses the induced electric field generated by coupling two groups of asymmetric dipoles along the vertical direction to transmit power
       Transmission power: 1w-10w
       Transmission distance: several mm - several cm
       Frequency range: 560-700khz
       Charging efficiency: 70% - 80%
       Advantages: suitable for short distance charging; high conversion efficiency; low heating; position can not be fixed
       Limitation: large volume; low power
       Solution provider: Murata Murata, etc