Dimming control for emergency lighting systems
US9560703B2 · kind B2 · utility
4Cited by
17References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2012 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Aug 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/195
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emergency lighting module for providing emergency power to a solid state luminaire includes a microcontroller, and a detector coupled to the microcontroller and configured to detect a status signal indicative of a status of an AC line voltage, the emergency lighting module is configured to output a dimming control signal to the solid state luminaire in response to a reduction of the AC line voltage. The microcontroller is further configured to output a select signal to the solid state luminaire to cause the solid state luminaire to dim in accordance with the dimming control signal when the dimming control signal is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.