Patent ID: 7992027
Filing Date: 2011-08-02
Classification: G06F,H02J

Abstract:
1. A power supply device that supplies power to a load, comprising: a plurality of first power supply units which as provided in correspondence with a plurality of load groups each constituted comprising a plurality of loads and which each supply power via a first path to the respective loads in the corresponding load groups; a second power supply unit that is provided in correspondence with all of the load groups and which supplies power via a second path to the respective loads in the respective load groups; and a power supply control section that controls the first power supply units and the second power supply unit, respectively, wherein the respective first power supply units each comprise first power supply output sections of the same number as that of a plurality of subgroups that are provided in the respective load groups; the second power supply unit comprises second power supply output sections of the same number as that of the subgroups; the respective first power supply output sections correspond with the respective subgroups in the corresponding load groups and supply power via the first path to each of the loads in the corresponding subgroups; and the respective second power supply output sections correspond with all of the respective subgroups in the respective load groups and supply power via the second path to any one predetermined load among the respective loads in the subgroups for each of the subgroups.