Patent ID: 8624433
Filing Date: 2014-01-07
Classification: G06F,H02J,Y02B

Abstract:
1. A controller for managing an uninterruptible power supply (UPS) comprising an AC-to-DC converter and at least one DC power source, the controller implemented by one or more hardware devices configured to perform operations comprising: detecting a fault condition in an AC input voltage received by the UPS from an electrical main AC source; in response to the fault condition, electrically connecting the DC power source across the DC bus, the DC power source providing a DC output voltage across the DC bus; electrically disconnecting the DC power source from across the DC bus in response to termination of the fault condition; electrically connecting the AC-to-DC converter across the DC bus, the AC-to-DC converter adapted to perform AC-to-DC conversion between the electrical main AC source and the DC bus, the AC-to-DC converter providing the DC output voltage across the DC bus; and regulating the DC output voltage from the AC-to-DC converter to a voltage level above and substantially near a set point associated with the DC power source.