Circuit arrangement for a starting unit of a discharge lamp
US7781981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2005 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Aug 13, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a switching arrangement for an ignition device of a discharge lamp (1), comprised of a spark gap formed by three or more electrodes (11) and connected in series with the primary winding (8) of a superimposed transformer (3) and a surge capacitor (9). The invention proposes a cylindrically shaped configuration for the electrodes (11), with the cylinder axes (12) being arranged side by side and in parallel to each other, i.e. in such a manner that a multiple-stage spark gap in air is formed vertically to the cylinder axes (12). Furthermore, the invention relates to an ignition device for a high-pressure discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.