Method and circuit for driving a gas discharge lamp

Details Method and circuit for driving a gas discharge lamp Method and circuit for driving a gas discharge lamp

2005-03-08

2005-03-08

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S224000, C315S360000, C315SDIG007

Reexamination Certificate

active

06864645

ABSTRACT:
Circuit and method for driving a gas discharge lamp having a bridge converter. The bridge converter includes a plurality of switches. A controller turns on and off the plurality of switches. The circuit further includes a zero current sensor circuit. The controller senses at least one voltage differential to control a length of time that at least one of the at least four switches is on. The controller controls when at least one of the plurality of switches is turned on in accordance with an output of the zero cross sensor.

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