Electronic ballast having a converter which can continue to operate in the event of lamp failure
US7193373B2 · kind B2 · utility
2Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Nov 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an electronic ballast, in which an internal converter S1, S2, C1 continues to operate in the event of a lamp failure. An auxiliary power supply from control circuits can thus be maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.