Fluorescent lamp ballast operable from two different power supplies
US5099176A · kind A · utility
8Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1990 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Apr 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp control system operable from either an AC power supply of a first frequency or a power supply of a second frequency and which operates the lamp in a dimmed condition when the power supply is that of the second frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.