| 摘要 |
A power supply device for a server system includes a main power supply, a control microchip, a first switch, a trigger, a second switch, and an auxiliary power supply. When a voltage of the main power supply is within a predetermined range, the control microchip keeps the first switch turned off and the trigger keeps the second switch turned on, so that a voltage of the auxiliary power supply is transmitted to the server system via the second switch. When the main power supply is outside the predetermined range, the control microchip turns on the first switch and the trigger turns off the second switch, so that the voltage of the auxiliary power supply is transmitted to ground.
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