Power supply device for power source of server computer for rack arrangement, has control unit that is provided for switching between primary power supply voltage and secondary power supply voltage

摘要

The device (7) has a main power input unit (8a) that connects power supply main portion to primary power supply voltage. A converter circuit (10) converts primary power supply voltage to secondary power supply voltage. An output unit (11) outputs secondary power supply voltage and an auxiliary power input unit (8b) connects primary power supply voltage and secondary power supply voltage. A control unit (12) is provided for switching between primary power supply voltage and secondary power supply voltage. Independent claims are included for the following: (1) computer; and (2) rack arrangement.