Method of power and temperature control for high brightness light emitting diodes
US8816600B2 · kind B2 · utility
61Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jan 24, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various embodiments relate to a method for driving a light emitting diode (LED) flash including: measuring a junction temperature of the LED by applying a test current to the LED and measuring the LED forward voltage; determining the drive current based upon the measured junction temperature and measured data characteristics of the LED; and applying the drive current to the LED for a specified length of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.