Metal halide lamp ballast controlled by remote enable switched bias supply
US7446488B1 · kind B1 · utility
3Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2007 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Aug 29, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle lighting system receives power from a power supply and includes a lighting control module, a lamp, and a ballast having a bias control circuit. The lighting control module provides a remote enable signal to the ballast in response to an input. The bias control circuit of the ballast receives a supply voltage from a power supply and the remote enable signal and selectively energizes a bias regulator circuit of the ballast as a function of the remote enable signal. When the bias regulator circuit is energized, a controller of the ballast operates the ballast to provide power from the power supply to the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.