Single stage electronic ballast with power factor correction
US8643294B2 · kind B2 · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Jul 31, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single stage electronic ballast with power factor correction is provided. The single stage electronic ballast can work under the present intensity discharge lamp without any change and provide higher efficient, lower power consumption of lighting system, and better lighting quality of lamps. The single stage electronic ballast can also provide a stable current to load (lamp) for a long time. The single stage electronic ballast includes a first switch and a second switch that are controlled with complementary switching so as to provide an output voltage in response to the input power source and the variation of the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.