Self-ballasted fluorescent lamp and lighting fixture
US6252357A · kind A · utility
14Cited by
17References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Mar 31, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides self destruct arrangements for self ballasted fluorescent lamps and lighting fixtures using them. The ballast power supply includes at least one element that breaks down at high temperature. The lamp arrangements are constructed such that there is close proximity between at least one electrode of the lamp and the breakdown element of the ballast power supply. In one embodiment the breakdown element is a FET switch. In another embodiment, the breakdown element is a capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.