Circuit arrangement for field unit
US7916117B2 · kind B2 · utility
6Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting arrangement for a field unit screen is provided. The lighting arrangement comprises a circuit arrangement for a field unit with a power measuring device, a power distribution device, and a luminous device. The power measuring device and the power distribution device are adapted for determining an existing power and forwarding a surplus power to a screen light drive device. The screen light drive device determines whether the existing power is sufficient for lighting, and drives a luminous device when sufficient power is available. The luminous device comprises a light distribution device and a light generating device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.