Electronic ballast suitable for lighting control in fluorescent lamp
US6407511B1 · kind B1 · utility
5Cited by
12References
9Claims
0Family size
Inventors
Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Jun 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic ballast suitable for lighting control for a fluorescent lamp which includes a bridge rectifier for rectifying input commercial power supply voltage and a high frequency oscillator for feeding the fluorescent lamp a high frequency supply voltage, wherein the electronic ballast further comprises a linear active switching mode filter circuit for filtering the output of bridge rectifier by a linear active switching mode and feeding a supply voltage to the high frequency oscillator. With such configuration, the electronic ballast can be combined with a conventional thyristor lighting controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.