POWER SUPPLY SYSTEM FOR DRIVING VEHICLE

The present invention discloses a power supply system capable of supplying electric power to a vehicle, in particular, an electric vehicle, while reducing the number of components and improving stability. An embodiment of the present invention discloses a power supply system comprising: a battery comprising battery cells; a first switching device formed between one electrode of the battery and a power load unit comprising a motor that receives power from the battery; a pre-charge resistor having one end electrically connected to the other electrode of the battery; and a second switching device formed between the other end of the pre-charge resistor and the other electrode of the battery.