High efficiency high power factor electronic ballast
US6573664B2 · kind B2 · utility
1Cited by
8References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | May 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for driving a ballast in critical discontinuous mode (CDCM). The method provides for zero loss switching in order to maximize efficiency, and also provides controllable input and output power without the use of complex and costly feedback loops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.