Programmable current source for light emitting diode arrangements
US9161399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2012 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Jun 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An adjustable power supply (1) for light emitting diode arrangements (11), with the power supply (1) being dimensioned for a power class. The power supply (1) has an adjustable current source (3) and an adjustable power limitation (4), and the power limitation (4) is adjustable within the limits of the power class. The power supply (1) further has a control component (5) that is suitable for running an operating program (8). This operating program (8) uses, as its input parameters (7), the number of light emitting diodes (13) to be controlled and their method of connection and, from these parameters, it calculates the required current and the required power, according to which the current source (3) and the power limitation (4) are adjusted and regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.