A wireless power transmitter may include: a power factor correction (PFC) circuit configured to convert first alternating current (AC) power input from a power source into direct current (DC) power; an inverter configured to convert the DC power output from the PFC circuit into second AC power; a power transmission circuit configured to transmit wireless power, based on the second AC power output from the inverter; and at least one processor configured to identify at least one of a voltage or a current of the DC power output from the PFC circuit, and control an operation of the inverter based on the identified at least one of the voltage or the current.