Electrical computers and digital processing systems: support – Computer power control
Reexamination Certificate
2011-06-14
2011-06-14
Lee, Thomas (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Reexamination Certificate
active
07962772
ABSTRACT:
Various embodiments of a backup power system and method may include a transfer switch, connections to primary and secondary power sources, a stored energy component, and an interconnected controller with a processor and memory. The transfer switch may provide power to an external load from a selected one of the primary power source, the secondary power source, or the stored energy component. The controller may compare energy stored within the stored energy component against a first threshold relating to a maximum time necessary for the secondary power source to at least reach a predetermined minimum output level, and also to compare the stored energy level to a second threshold greater than the first threshold. The second threshold may be selected to reduce a number of on/off cycles of the secondary power source during periods of intermittent primary power fluctuation that are less severe than a prolonged loss of power.
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Ainet Registry, LLC
Chang Eric
Lee Thomas
Pillsbury Winthrop Shaw & Pittman LLP
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