Controlled current generator for operating light emitting diodes
US6118259A · kind A · utility
27Cited by
4References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 27, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Apr 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for operation of a semiconductor light source having terminals for connecting a source of power and output terminals for connecting the semiconductor light source. The circuit is also provided with a controlled current generator and is also concerned with a signal head incorporating the circuit. The controlled current generator is controlled by the current flow through the semiconductor light source and the current supplied by the controlled current generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.