Electronic ballasts for lighting systems

Details Electronic ballasts for lighting systems Electronic ballasts for lighting systems

2011-03-22

2011-03-22

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S224000, C315S307000, C315SDIG002

Reexamination Certificate

active

07911153

ABSTRACT:
A microprocessor controlled electronic ballast for lighting equipment is described wherein light level control is performed by varying the power provided to the light. Lighting power is adjusted by driving the lamp through a resonant circuit with a variable frequency power signal. The programmable microprocessor controls overall operation including preheating, ignition, and shutdown.

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