Supercapacitor and charger for secondary power
US7772720B2 · kind B2 · utility
1,512Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/345
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary power source system, includes a first unit receiving a primary power input and restricting a current used for charging to a predetermined amount, a second unit including a device providing capacitance, receiving a first output from the first unit with restricted current, a third unit generating a second output of a certain voltage, and a fourth unit performing a logical OR operation with the primary power input, first output from the first unit and second output from the second unit, to generate a single third output of a certain voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.