UNINTERRUPTABLE DC POWER SUPPLY PROVIDING SEAMLESS DC POWER TO LOAD

摘要

The present invention relates to an uninterruptable DC power supply providing seamless DC power to a load. The uninterruptable DC power supply according to one embodiment of the present invention includes: a first connection unit electrically connected to a DC power converting device converting regularAC power to DC power; a second connection unit electrically connected to a load and providing the DC power to the load; an auxiliary power supply charged by the DC power; and an uninterruptable controller charging the auxiliary power supply while providing, through the second connection unit, the DC power provided from the DC power converting device normally connected to the first connection unit, and performing controlling so as to seamlessly supply power to the load while completely blocking the electrical connection to the auxiliary power supply device when the DC power converting device is disconnected from the first connection unit, damaged, or short-circuited.