Method and system for open lamp protection

Details Method and system for open lamp protection Method and system for open lamp protection

2005-12-15

2008-07-01

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

With signal, indicator, or alarm

C315S130000

Reexamination Certificate

active

07394203

ABSTRACT:
A detector circuit monitors the phase relationship between the lamp voltage and the excitation voltage, and if one or more conditions are met, triggers the open lamp protection process in a discharge lamp system. The detection circuit can be incorporated into a lamp voltage feedback circuit and implemented on the integrated circuit level with less cost and circuit complexity.

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