COMPUTER POWER SUPPLY DEVICE HAVING FAN CONTROL CIRCUIT FOR COOLING STANDBY POWER SOURCE UNIT IN STATE IN WHICH COMPUTER IS TURNED OFF, AND OPERATING METHOD

摘要

The present invention relates to a computer power supply device having a fan control circuit for cooling a standby power source unit in a state in which a computer is turned off and comprises: a power source unit for providing power to each part included in a computer main body while generating main power and standby power; a cooling control circuit; and a detection sensor. The present invention has an advantage of reducing the durability deterioration of parts included in the computer main body according to heating of the parts by driving a fan by means of the standby power of the power source unit so as to decrease the temperature or the current of the parts to a predetermined value or less if the temperature or the current of the parts increases to the predetermined value or more when an operation of the computer stops, thereby preventing a reduction in the durability and lifespan of the parts.