Portable fluorescent drop-light
AssigneeTMC Enterprises, a division of Tasco Industries, Inc.
InventorsThomas J. Miller, Zhou Dong Yue
Life of this patent
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Abstract
A hand-held fluorescent lamp assembly powered by typical line supply of 120 VAC, 60 Hz via an attached power cord and employing multiple commonly available fluorescent lamps. The assembly includes switches to independently control the multiple fluorescent lamps. The assembly includes lightweight solid state power regulation components. The power regulation circuit employs a self-oscillating circuit that is approximately matched in frequency of oscillation to the natural frequency of the fluorescent lamp load to automatically ignite the fluorescent lamps. The power regulation circuit includes circuit elements to automatically protect the ballast circuit and lamps from overdrawing in the run state and from abnormal load conditions.
Claims1
A portable light generating apparatus comprising
- a power cord;
- a ballast circuit receiving power from the power cord and comprising a single self-oscillation circuit and a single protection circuit;
- a plurality of light emitting elements independently connected in parallel to the ballast circuit;
- and
- an enclosure assembly fixedly attached to a first end of the power cord and further enclosing the ballast circuit and light emitting elements.
Dependencies are inferred from the claim text.