Retrofit LED lighting system for replacement of fluorescent lamp
US9028105B2 · kind B2 · utility
22Cited by
3References
11Claims
0Family size
Inventors
Key dates
| Filing date | May 2, 2013 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A 4 pin LED retrofit lamp for replacement of socket fitted CFL lamp driven by fluorescent ballast is provided. The retrofit lamp comprises a plurality of LEDS in connection with the fluorescent ballast. The circuit of the lamp comprises a bridge rectifier that converts the AC waveform into DC and a capacitor to filter the resulting waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.