Compact fluorescent lamp with improved power factor
US5313142A · kind A · utility
28Cited by
4References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1993 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Jan 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact fluorescent lamp in combination with a high frequency DC-AC converter includes a rectifier circuit and a buffer capacitor coupled between a source of low frequency AC voltage and the converter. A feedback capacitor couples a high frequency feedback signal corresponding to the converter output signal to the buffer capacitor via the rectifier circuit so as to improve the power factor of the combination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.