Driver for light emitting devices using sequential coupling
US10149361B1 · kind B1 · utility
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16Claims
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Key dates
| Filing date | May 30, 2017 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | May 30, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method includes sequentially coupling, by a switching module of a circuit, each cell of a plurality of cells to a driver module. Each cell of the plurality of cells includes a light emitting diode (LED) configured to activate based on a control voltage at a respective cell of the plurality of cells. The method includes driving, by the driver module, the control voltage of the respective cell based on a reference current when the switching module sequentially couples the respective cell to the driver module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.