US Patent 7869191 Uninterruptible power supply apparatus

An uninterruptible power supply (UPS) apparatus is disclosed. The UPS apparatus comprises a UPS main body and a support. The UPS main body includes a power supply unit for receiving AC power from a power source and converting AC power to DC power, a battery unit for receiving DC power from the power supply unit and providing DC power to a load, and a case for housing the power supply unit and the battery unit therein, wherein a bottom surface of the case has a first width. The support is used to support the UPS main body thereon to enable the UPS apparatus to stand on a desk, wherein a bottom surface of the support has a second width larger than the first width. Therefore, the UPS apparatus can be served as a desktop DC UPS.