Control of multi-string LED array
US8410716B2 · kind B2 · utility
24Cited by
0References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Jul 9, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus, systems, and methods related to controlling multiple strings of light emitting diodes (LEDs) are disclosed. An apparatus may include internal current limiter circuits that are each coupled in series with an associated string of LEDs and are configured to at least partially regulate the current through the associated string of LEDs. The apparatus may also be configured to control external current limiter circuits that are each coupled in series with a corresponding internal current limiter circuit and the string of LEDs associated with the corresponding internal current limiter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.