Drive circuit for light-emitting diodes
US6747420B2 · kind B2 · utility
101Cited by
9References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2002 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a control circuit for at least one light-emitting diode (1) for adjusting the current and/or the voltage of the light-emitting diode (1) to a desired value adjusted by means of a controller (3), the current, the voltage and/or the luminescence of the light-emitting diode (1) being detectable and comparable with the desired value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.