Open lamp detection in an EEFL backlight system
US7253569B2 · kind B2 · utility
6Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2005 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Aug 31, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method according to one embodiment may include supplying power to plurality of External Electrode Fluorescent Lamps (EEFLs). The method of this embodiment may also include generating signals proportional to the voltage of each EEFL. The method of this embodiment may also include generating a feedback signal indicative of the state of one or more of the plurality of EEFLs based on, at least in part, the value of at least one signal proportional to the voltage of each EEFL. Of course, many alternatives, variations, and modifications are possible without departing from this embodiment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.