Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2007-05-08
2007-05-08
Cao, Chun (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
C714S022000, C702S060000
Reexamination Certificate
active
10903429
ABSTRACT:
A power supply unit according to a preferred embodiment of the invention is self testing. The power supply unit is enabled to function with no external loads applied, and includes a visual indicator of whether or not one or more voltage outputs of the power supply unit is within tolerance. To benefit from the self-test feature, a user in the field may simply unplug the power supply unit from all loads, plug the unit into an A/C source, and observe the visual indicator. If the visual indicator is lit, then the user may reasonably assume that the power supply unit is functioning correctly. But if the visual indicator is not lit, then the user may reasonably assume that the power supply unit is faulty.
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ATX Specification. Version 2.2. pp. 1-26.
ATX12V Power Supply Design Guide. Version 1.3. pp. 1-38.
Babb Samuel Martin
Mathis Stacie F.
Pracht Kelly J.
Weaver Jeffrey Scott
Cao Chun
Connolly Mark
Hart Kevin M.
Hewlett--Packard Development Company, L.P.
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