Dimmable lighting system
US8829812B2 · kind B2 · utility
7Cited by
6References
49Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 7, 2009 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system for operation with a dimmer circuit comprising a triac connected to a load. The load comprises a driver circuit for supplying current to a light source comprising one or more LEDs, the current being determined at least in part by an adjusted setpoint value. The system further comprises a setpoint filter circuit for obtaining a dimmer setpoint value determined at least in part by a setting of the dimmer circuit, and for generating an adjusted setpoint value. The sensitivity of the adjusted setpoint value to changes in the dimmer setpoint value is low at low values of the dimmer setpoint value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.