| US 7,514,815 B2 | ||
| System and method for allocating power to loads | ||
| Nam Wook Paik, Acton, Mass. (US); Lance Palmer Haines, Wilmington, Mass. (US); Vishwas Mohaniraj Deokar, Nashua, N.H. (US); James H. Donalds, Lunenburg, Mass. (US); and Michael Manganese, Peabody, Mass. (US) | ||
| Assigned to American Power Conversion Corporation, West Kingston, R.I. (US) | ||
| Filed on Sep. 28, 2004, as Appl. No. 10/952,565. | ||
| Prior Publication US 2006/0072262 A1, Apr. 06, 2006 | ||
| Int. Cl. H02J 7/00 (2006.01) | ||
| U.S. Cl. 307—64 | 36 Claims |
| 1. A system for controlling power to a plurality of loads from a plurality of power sources, wherein at least one of the plurality
of power sources is a primary power source and at least one of the power sources is a back-up power source, the system comprising:
a first input to receive power from the primary power source;
a second input to receive power from the back-up power source;
a plurality of outputs to provide output power to the plurality of loads;
a plurality of controllable switches each coupled to the first input, the second input and at least one of the plurality of
outputs; and
a controller adapted to control the plurality of controllable switches, wherein the controller is configured to detect a loss
of primary power and to control the plurality of controllable switches based on a categorization of the plurality of loads
as delayable or non-delayable, and wherein the controller is configured to selectively turn on and off delayable loads based
on available power from the back-up power source, and wherein the controller is programmable to set a maximum delay time for
each of the delayable loads.
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