A motor driver, comprising: a rectifier to rectify input alternating current power in a charging mode; an interleaved buck-boost converter to convert the rectified power into direct current power to supply the converted DC power to a battery in the charging mode, the interleaved buck-boost converter including a plurality of buck-boost converters; a converter controller to control the interleaved buck-boost converter; the battery to store the converted DC power from interleaved buck-boost converter in the charging mode; a DC/DC converter to convert level of the DC power stored in the battery and output the level-converted DC power to an inverter in a motor operation mode; the inverter to convert the DC power provided from the DC/DC converter into alternating current power to drive a motor, in the motor operation mode, a first capacitor connected to an output of the rectifier; a second capacitor connected to an output of the interleaved buck-boost converter; wherein a first buck-boost converter of the interleaved buck-boost converter includes, a first buck switching element connected to the rectifier, a first boost switching element, a first inductor connected between the first buck switching element and the first boost switching element, a first diode connected to a first node between the first buck switching element and the first inductor, and a second diode connected to a second node between the first boost switching element and an output of the interleaved buck-boost converter, wherein, in the boost mode, if the first buck switching element and the first boost switching element are turned on, energy is accumulated in the first inductor based on a first current flowing the first buck switching element, the first boost switching element, and the first inductor, wherein, in the boost mode, if the first buck switching element is turned on and the first boost switching element is turned off, the energy accumulated in the first inductor is stored in the second capacitor by a second current flowing through the first buck switching element, the first inductor, and the second diode, wherein, in the buck mode, if the first buck switching element is turned on and the first boost switching element is turned off, a DC power is stored in the second capacitor by a third current flowing through the first buck switching element, the first inductor, and the second diode, wherein, in the buck mode, if first buck switching element and the first boost switching element are turned off, energy accumulated in the first inductor is stored in the second capacitor by a forth current flowing through the first diode, the first inductor, and the second diode. a rectifier to rectify input alternating current power in a charging mode; an interleaved buck-boost converter to convert the rectified power into direct current power to supply the converted DC power to a battery in the charging mode, the interleaved buck-boost converter including a plurality of buck-boost converters; a converter controller to control the interleaved buck-boost converter; the battery to store the converted DC power from interleaved buck-boost converter in the charging mode; a DC/DC converter to convert level of the DC power stored in the battery and output the level-converted DC power to an inverter in a motor operation mode; the inverter to convert the DC power provided from the DC/DC converter into alternating current power to drive a motor, in the motor operation mode, a first capacitor connected to an output of the rectifier; a second capacitor connected to an output of the interleaved buck-boost converter; wherein a first buck-boost converter of the interleaved buck-boost converter includes, a first buck switching element connected to the rectifier, a first boost switching element, a first inductor connected between the first buck switching element and the first boost switching element, a first diode connected to a first node between the first buck switching element and the first inductor, and a second diode connected to a second node between the first boost switching element and an output of the interleaved buck-boost converter, wherein, in the boost mode, if the first buck switching element and the first boost switching element are turned on, energy is accumulated in the first inductor based on a first current flowing the first buck switching element, the first boost switching element, and the first inductor, wherein, in the boost mode, if the first buck switching element is turned on and the first boost switching element is turned off, the energy accumulated in the first inductor is stored in the second capacitor by a second current flowing through the first buck switching element, the first inductor, and the second diode, wherein, in the buck mode, if the first buck switching element is turned on and the first boost switching element is turned off, a DC power is stored in the second capacitor by a third current flowing through the first buck switching element, the first inductor, and the second diode, wherein, in the buck mode, if first buck switching element and the first boost switching element are turned off, energy accumulated in the first inductor is stored in the second capacitor by a forth current flowing through the first diode, the first inductor, and the second diode.