Wireless power transmitter and wireless power transmitting method

The wireless power transmitter is disclosed. A wireless power transmitter which can charge a plurality of wireless power receiver, in accordance with an embodiment of the present invention, a plurality of the coil shell; The main half-bridge inverter to which the main pulse signal; The first sub-pulse signal or the second sub-plurality of sub-half-bridge inverter is a pulse signal is applied; A current sensor that monitors the current of the coil shell; And said main half-bridge inverter and a control of the pulse signals applied to the plurality of sub-half-bridge inverter, comprising a communication / control unit configured to perform communication with the wireless power receiver, each of the plurality of sub-half-bridge inverter is the a plurality of coils may be connected to each cell.