WIRELESS POWER TRANSMITTER AND WIRELESS POWER TRANSMITTING METHOD

摘要

A wireless power transmitter is disclosed. The wireless power transmitter capable of charging a plurality of wireless power receivers, according to one embodiment of the present invention, comprises: a plurality of coil cells; a main half bridge inverter to which a main pulse signal is applied; a plurality of sub half bridge inverters to which a first sub pulse signal or a second sub pulse signal is applied; a current sensor for monitoring currents of the coil cells; and a communication/control unit controlling the pulse signals applied to the main half bridge inverter and the plurality of sub half bridge inverters, and communicationg with the wireless power receivers, wherein each of the plurality of sub half bridge inverters can be connected to each of the plurality of coil cells.