Wireless power transmitter and method for controlling the same

Abstract

A wireless power transmitter includes a first resonance circuit having first resonance characteristics; a second resonance circuit having second resonance characteristics different from the first resonance characteristics; a first inverter configured to provide alternating current (AC) power to the first resonance circuit using an input direct current (DC) power; a second inverter configured to provide the AC power to the second resonance circuit using the input DC power; and a controller configured to control the first inverter and the second inverter to cause the first resonance circuit to wirelessly transmit power, and to cause the second resonance circuit to transmit an external object sensing signal while the first resonance circuit wirelessly transmits power.

Dependencies are inferred from the claim text.