ELECTRIC VEHICLE

An electric vehicle may include a voltage converter, a charging inlet and a controller. The voltage converter is connected between the main and sub batteries. The charging inlet is connected with the main battery and connectable to power supplying equipment. The controller drives the voltage converter by a carrier signal having a first frequency while the power supplying equipment is not connected. While the charging inlet is connected to the power supplying equipment, the controller may execute one of (1) a first control in which the controller intermittently drives the voltage converter; (2) a second control in which the controller continuously drives the voltage converter while varying a frequency of the carrier signal; and (3) a third control in which the controller changes a frequency of the carrier signal from the first frequency to a second frequency which is lower than the first frequency.