Flash device
US6404989B2 · kind B2 · utility
3Cited by
2References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Dec 12, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flash device having a charging circuit which is arranged to be capable of changing between a flyback-type boosting action and a forward-type boosting action. The flyback-type boosting action is performed in the initial stage of a charging process and, after that, is changed over to the forward-type boosting action. The arrangement permits a charging action to be efficiently carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.