LED drivers and driver controllers
US8058815B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Sep 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
LED drivers and LED driver controllers are disclosed for controlling one or more high-intensity LEDs. The LED driver controllers may control one or more LED drivers in multiple different ways, including controlling on times, off times, delays, current levels, and other parameters. The LED drivers may have fast response times in which the LEDs are illuminated within microseconds after receiving a control signal. The LED drivers may also include other features, including a current boost for temporarily illuminating the LEDs at levels exceeding their maximum continuous current rating, as well as brightness controls for the LEDs, and other features. The LED drivers and/or LED driver controllers may be especially suitable for LEDs used to provide lighting for high-speed visions systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.