Circuit for driving cold cathode tubes

Details Circuit for driving cold cathode tubes Circuit for driving cold cathode tubes

2006-03-21

2006-03-21

Philogene, Haissa (Department: 2828)

Electric lamp and discharge devices: systems

Time-controlled

C315S291000, C315S2090SC, C315S244000, C315S307000, C315SDIG002

Reexamination Certificate

active

07015660

ABSTRACT:
The subject invention is a circuit for driving a cold cathode tube using a 110V power supply. Power is provided to the cold cathode tube through a direct current converter circuit. A resonance capacitor works in conjunction with the inductive storage device until the start resonance of the tube is attained as directed by a resistor/capacitor (R/C) network. Once the tube starts conducting, another R/C network maintains and controls the circuit at a run resonance. The main driver is an oscillator with a high side and low side MOSFET driver.

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patent: WO 01/98853 (2001-12-01), None
patent: WO 02/077740 (2002-10-01), None

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