Patent · US Expired

Method and apparatus for driving an external electrode fluorescent lamp

US7164240B2 · kind B2 · utility

5Cited by
3References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 23, 2005
Grant dateJan 16, 2007
Priority date
Expiry dateJun 23, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02B20/00
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A technique for driving one or more EEFLs, having first and second ends, in a bank of EEFLs involves driving the EEFLs at both the first and second ends. In a non-limiting embodiment a device constructed according to the technique includes a bank of EEFLs connected in parallel. The device further includes a first transformer, wherein a secondary winding of the first transformer is coupled to the first end of the bank of EEFLs. The device further includes a second transformer, wherein a secondary winding of the second transformer is coupled to the second end of the bank of EEFLs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.