LED driving and dimming circuit and configuration method
US9161412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Sep 3, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An LED driving and dimming circuit and configuration method are provided. The circuit can include a switch connected to an AC power supply, an LED driver circuit connected to the switch, a switch-status detection circuit connected to the switch, and a brightness-selection circuit having one end connected to the switch-status detection circuit and another end connected to the LED driver circuit. The switch-status detection circuit is configured to detect whether the switch is open or closed and to output a detected result to the brightness-selection circuit. The LED driver circuit is configured to control a brightness level of the LED lighting device, according to a voltage result from the brightness-selection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.