Extending backup times of uninterruptible power supplies
US8097978B2 · kind B2 · utility
3Cited by
18References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2008 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | May 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for extending backup times using networks of direct current (DC) uninterruptible power supplies (UPS) is provided. A first DC UPS has a first input and a first output. A second DC UPS has a second input coupled to the first output of the first DC UPS, a second output coupled to at least one electrical load, and a third output coupled to the first input of the first DC UPS. Battery current from the first and second DC UPS is shared with the at least one electrical load in the event of a power loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.