Method and system for dimming an offline LED driver
US8264165B2 · kind B2 · utility
6Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for dimming a light emitting diode (LED) driver. The apparatus includes a triode alternating current (TRIAC) dimmer and an LED driver receiving an input voltage from an output of the TRIAC dimmer so that the state of the LED driver is controlled by the TRIAC dimmer. The LED driver includes an active damping circuit configured for damping, upon detecting a rising edge of a bridge rectified input voltage, resonance caused by the TRIAC dimmer and the LED driver for a fixed period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.