Monitoring voltage to track temperature in solid state light modules
US8330377B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Sep 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination system has a lighting module, a microcontroller electrically connected to the lighting module and arranged to control the lighting module, and a transistor electrically connected to the lighting module and the microcontroller arranged to allow the microcontroller to monitor a voltage of one of either the transistor or lighting module. A method of controlling a lighting module including powering on the lighting module, providing a current to the lighting module, wherein the current is determined by a global intensity setting for the lighting module, monitoring a voltage provided to the lighting module, and shutting the lighting module down if the voltage reaches a pre-determined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.