Commutation circuit for sequential linear LED drivers
US9883554B2 · kind B2 · utility
7Cited by
10References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2016 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Sep 26, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A sequential linear LED driver circuit is provided. The sequential linear LED driver circuit may include a plurality of current sinks, wherein each of the plurality of current sinks is configured to be coupled to a segment of a string of light-emitting diodes (LEDs), and a voltage divider that generates a plurality of reference voltages, wherein each of the plurality of reference voltages is applied to a respective current sink of the plurality of current sinks. The output of each current sink of the plurality of current sinks may be connected at a summing node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.