A charging control device adapted to charge a DC load with a voltage converted from a power received from a wireless power transmitter , the charging control device comprising: a capacitor configured to be charged with the converted voltage (V1); wherein the load is connected to the capacitor ; a comparator that is configured to compare a voltage (V2) of the capacitor with a reference voltage (Vref) and configured to generate an output signal based on the comparison result; and a switch connected to a front end of the capacitor and switched based on the output signal of the comparator configured to control a supply of the converted voltage to the load , characterized in that a first period is defined, which is a period during which the converted voltage lower than the reference voltage (Vref) is being supplied, wherein a second period is defined, which is a period during which the converted voltage (V1) higher than the reference voltage is being supplied, wherein, in the first period, the switch is constantly turned on and the converted voltage (V1) is supplied to the load , wherein, in the second period, when the voltage (V2) of the capacitor is higher than the reference voltage, the switch is open based on the output signal of the comparator and the voltage (V2) of the capacitor is supplied to the load , wherein, in the second period, after the capacitor is discharged due to the supply of the voltage (V2) of the capacitor to the load , when the voltage of the capacitor is lower than the reference voltage (Vref), the switch is turned on based on the output signal of the comparator and the converted voltage (V1) is charged in the capacitor so that the voltage of the capacitor is increased, wherein, in the second period, when the voltage of the capacitor is higher than the reference voltage due to the increase of the voltage (V2) in the capacitor , the switch is open based on the output signal of the comparator and the voltage of the capacitor is supplied to the load . a capacitor configured to be charged with the converted voltage (V1); wherein the load is connected to the capacitor ; a comparator that is configured to compare a voltage (V2) of the capacitor with a reference voltage (Vref) and configured to generate an output signal based on the comparison result; and a switch connected to a front end of the capacitor and switched based on the output signal of the comparator configured to control a supply of the converted voltage to the load , characterized in that a first period is defined, which is a period during which the converted voltage lower than the reference voltage (Vref) is being supplied, wherein a second period is defined, which is a period during which the converted voltage (V1) higher than the reference voltage is being supplied, wherein, in the first period, the switch is constantly turned on and the converted voltage (V1) is supplied to the load , wherein, in the second period, when the voltage (V2) of the capacitor is higher than the reference voltage, the switch is open based on the output signal of the comparator and the voltage (V2) of the capacitor is supplied to the load , wherein, in the second period, after the capacitor is discharged due to the supply of the voltage (V2) of the capacitor to the load , when the voltage of the capacitor is lower than the reference voltage (Vref), the switch is turned on based on the output signal of the comparator and the converted voltage (V1) is charged in the capacitor so that the voltage of the capacitor is increased, wherein, in the second period, when the voltage of the capacitor is higher than the reference voltage due to the increase of the voltage (V2) in the capacitor , the switch is open based on the output signal of the comparator and the voltage of the capacitor is supplied to the load . <EOS>