Pulse network for fluorescent lamp dimming
US4540917A · kind A · utility
22Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1983 |
| Grant date | Sep 10, 1985 |
| Priority date | — |
| Expiry date | Apr 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pulse network is connected to the inductive ballast of a fluorescent lamp dimmer and includes a discharge resistor in parallel with the pulse network capacitor. The resistor size is such that it will completely discharge the capacitor prior to the initiation of any phase delayed half wave voltage which is applied to the ballast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.