Methods and protection schemes for driving discharge lamps...

Details Methods and protection schemes for driving discharge lamps... Methods and protection schemes for driving discharge lamps...

2007-09-04

2007-09-04

Chen, Shih-Chao (Department: 2821)

Electric lamp and discharge devices: systems

Periodic switch in the supply circuit

Silicon controlled rectifier ignition

Reexamination Certificate

active

11250161

ABSTRACT:
The present disclosure introduces a simple method and apparatus for converting DC power to AC power for driving discharge lamps such as a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEFL), or a flat fluorescent lamp (FFL). Among other advantages, the invention allows the proper protection under short circuit conditions for applications where the normal lamp current is greater than safe current limit.

REFERENCES:
patent: 6118415 (2000-09-01), Olson
patent: 6396722 (2002-05-01), Lin
patent: 6501234 (2002-12-01), Lin et al.
patent: 6707264 (2004-03-01), Lin et al.
patent: 6804129 (2004-10-01), Lin
patent: 6870330 (2005-03-01), Choi
patent: 6979959 (2005-12-01), Henry

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