Electronic ballast
US4240009A · kind A · utility
67Cited by
5References
17Claims
0Family size
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic ballast for starting and operating gaseous discharge lamps from a low voltage d-c source which employs a regulated inverter providing controlled high ignition voltage, constant current warm-up and constant wattage operation for one or more lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.