Constant current Class 3 lighting system
US7038400B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J3/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system having a power supply and at least one luminaire. The power supply includes a power supply input to receive a first signal having a first frequency and a circuit for converting the first signal to a second signal. The power supply also includes at least one power supply output to output a second signal having a substantially constant current and a second frequency distinctly higher than the first frequency. The luminaire includes a lamp coupled to a lamp driver circuit, which has an input for receiving the output signal from the power supply and which is configured to use the received output signal to operate the lamp. The lamp driver input and the power supply output may be connected by a flexible cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.