Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 30, 2010
Patent Application Number
12017750
Date Filed
January 22, 2008
Patent Primary Examiner
Patent abstract
A step dimming interface is utilized to operate a load such as a gas discharge lamp. The dimming interface has first and second switches for determining when the gas discharge lamp operates at either a normal power level or a dimming power level. A rectifier circuit is connected to a control signal production circuit. By manipulating the first and second switches, the rectifier sends either a full-wave rectified signal or a half-wave rectified signal to the control signal production circuit which determines the output of the control signal production circuit. The control signal production circuit may be connected to an electronic ballast which varies the power level of the lamp according to this output.
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