| 摘要 |
PURPOSE: A wireless charging is provided to charge an electronic device inside a building at all times by transmitting a specific frequency to the building. CONSTITUTION: A wireless charging is performed through a specific frequency. The number of an internal coil turn and a frequency band are controlled. A user charges an electronic device in bus or in class without charging time. A wireless charging satisfies a condition that charging time is faster than the amount of power consumed by the electronic device. |
