Thermal foldback for a lamp control device

Details Thermal foldback for a lamp control device Thermal foldback for a lamp control device

2011-03-22

2011-03-22

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000, C315S224000, C315S247000, C315S2090SC

Reexamination Certificate

active

07911156

ABSTRACT:
The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.

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