Energy conserving instant-start series-sequence fluorescent lamp system and fluorescent lamp with overcurrent protection
US4501992A · kind A · utility
6Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1982 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Aug 23, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/232
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy-saving instant-start series-sequence fluorescent lamp system includes power-reducing capacitor means connected in series circuit arrangement with one or both lamps in a two-lamp system. A protective device is connected in circuit with a first lamp of the system so that in the event the second lamp fails to operate and causes a high current to flow through the first lamp, the protective device reacts to prevent the system from being damaged. A lamp incorporating the power-reducing capacitor and protective device is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.