Backup power system and method
Granted patent · United States · publication US7962772B2
Overview
A backup power system that manages multiple power sources and energy storage to reduce unnecessary generator cycling during power disruptions. The system connects a primary power source, a secondary source (like a generator), and energy storage, with an electronic controller that switches between them based on stored energy levels. When primary power fails, the controller uses stored energy as a buffer rather than immediately activating the generator. Two energy thresholds guide this behavior: a lower threshold representing the startup time needed for the secondary source to reach operational output, and a higher threshold for sustained outages. This two-threshold approach prevents the backup generator from repeatedly cycling on and off during brief power fluctuations, reducing mechanical wear and extending equipment life, while ensuring power availability during extended outages.
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Other jurisdictions claiming the same priority date. Each has its own dossier on this site.
| Publication | Jurisdiction | Kind | Date | Status |
|---|---|---|---|---|
| AU2009212260B2 | Australia | Granted patent | 2008-02-07 | active |
| CA2715358C | Canada | Granted patent | 2008-02-07 | active |
| EP2240993B1 | European Patent Office | Granted patent | 2008-02-07 | active |
| IL207392A | Israel | Granted patent | 2008-02-07 | active |
| JP5303577B2 | Japan | Granted patent | 2008-02-07 | active |
| US20090204838A1 | United States | Published application | 2009-08-13 | expired |
| WO2009100295A2 | WIPO (PCT) | WIPO publication | 2009-08-13 | expired |
| US20100235671A9 | United States | Published application | 2010-09-16 | expired |
| HK1149857B | Hong Kong | Granted patent | 2019-08-09 | active |