Adjusting color temperature in a dimmable LED lighting system
US9844113B2 · kind B2 · utility
10Cited by
11References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Aug 30, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver that regulates an overall intensity of light produced by the LED lighting system. The color of the LED lighting system may be controlled by circuitry, such as one or more switches, that allocates current between the LED strings to change the color temperature of light emitted by the LED lighting system as the light intensity changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.