CONTROL STRUCTURE FOR A POWER SUPPLY CLUSTER

摘要

A control structure for a power supply cluster which has a primary power supply and a secondary power supply that are independently linked to AC power and transform the AC power to DC power to supply electric power required by an electronic device in a computer equipment. A switch unit is provided to be linked to the primary power supply and the secondary power supply to get a start signal from the primary power supply and transfer to the secondary power supply. Electric power of the primary power supply also is transferred to the electronic device to present a first power supply status. A judgment unit also is provided to be linked to the primary power supply and the switch unit to get the start signal and defer sending a switch signal to the switch unit so that the electronic device can get electric power from the secondary power supply and present a second power supply status. Thereby the electronic device can continuously get the electric power after the primary power supply is started to improve the shortcoming of a conventional power supply cluster that is not started concurrently and results in poor system matching, and requires an additional transmission line even if concurrent start can be accomplished.