Patent ID: 7071580
Filing Date: 2006-07-04
Classification: H02J

Abstract:
1. An uninterruptible power supply apparatus comprising: a first power supply input section and a second power supply input section that are adapted to receive power from two systems of power supply, respectively; a first power supply output section and a second power supply output section; an output switching section electrically connected to receive power from the first and second power supply input sections and to deliver the power to the first and second power supply output sections; a control section that monitors a state of power supply to both of said first and second power supply input sections and, upon detectinq a power failure state of the power that is inputted in either of the first and second power supply input sections, controls the output switching section such that power from a backup power supply is outputted from at least one of the first power supply output section and the second power supply output section in response to the detection of input power failure by the control section; a battery coupled to the first power supply input section and the second power supply input section; a charging section electrically connected to both the first and second power supply input sections, that charges the battery with the power inputted from either of the first power supply input section and the second power supply input section; and an inverter section that is electrically connected between the battery and the output switching section, and that converts power charged in the battery into the backup power supply, wherein, when the control section detects a power failure state of the power supply that is inputted in the first power supply input section, the control section controls the output switching section to shut off the first power supply output section and directly connect the second power supply input section to the second power supply output section.