Patent attributes
A multi-input uninterruptible power system (UPS) includes a primary power circuit, a secondary power circuit, and a diode circuit. The primary power circuit and the secondary power circuit include rectifiers that convert AC power into DC power. A diode circuit is electrically coupled between the secondary power circuit and an internal bus of the multi-input UPS. The diode circuit prevents backflow of power into the secondary power circuit when electrical power is received from a primary power source electrically coupled to the primary power circuit and allows electrical power from a secondary power source electrically coupled to the secondary power circuit to flow to the internal bus when electrical power is not being received from the primary power source. An outlet of the multi-input UPS electrically coupled to the internal bus is electrically coupled to a group of electrical loads of multiple groups of electrical loads in a data center.