LED driving device, illuminator, and liquid crystal display device
US8957598B2 · kind B2 · utility
1Cited by
0References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2012 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Feb 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a light emitting diode (LED) driving device, which comprises: a direct current/direct current (DC/DC) controller, for controlling an output segment that is used to generate an output voltage from an input voltage and supply the output voltage to an LED; an output current driver, for generating an output current of the LED; and an output discharging circuit, for performing, based on a predetermined control signal, discharging of the output voltage when a generation action of the output voltage and the output current stops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.