Pulse starting circuit
US7279847B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Dec 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp ballast starting circuit and method for a gas discharge lamp is disclosed. The ballast starting circuit includes the inputs of the starting circuit connected to an inverter circuit, the starting circuit generating a pulse at the leading edge of each alternating half cycle of the inverter circuit output, the polarity of the pulse being the same as the polarity of each alternating half cycle of the inverter circuit output. The output of the starting circuit starts a gas discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.