Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate
2006-08-08
2006-08-08
Philogene, Haissa (Department: 2828)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Impedance or current regulator in the supply circuit
C315S291000, C315S225000, C315S282000, C315S2090SC, C315SDIG002, C361S018000, C361S038000, C361S042000
Reexamination Certificate
active
07088055
ABSTRACT:
The present invention relates to a high-efficiency controller of a gas-filled light producing tube; the controller can produce signals in a form of outputs of high-frequency sine wave to soft-start a gas-filled light producing tube according to the principle of modulation and oscillation of pulse (P.W.M.) so that the gas-filled tube produces light, and that service light of the gas-filled tube can be lengthened. If abnormal conditions happen, e.g. people's touching the gas-filled tube, and the tube breaking, the controller will make the transformer stop working immediately, preventing sparks from being produced to hurt people, making the gas-filled light producing tube safe to use.12 external switch circuit
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Philogene Haissa
Rosenberg , Klein & Lee
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