WIRELESS POWER RECEIVING DEVICE AND OPERATION METHOD THEREFOR

An example wireless power receiving device may include a receiving coil, a rectifier, a converter, a battery, and a processor. The processor may be configured to control the converter such that an input voltage provided from the rectifier to the converter is maintained at a first reference voltage and change a reference voltage of the input voltage from the first reference voltage to a second reference voltage, based on an output current provided from the converter to the battery being maintained lower than a specified target current for a specified period of time while the input voltage is maintained at the first reference voltage.