Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
John G. Konopka0
Himamshu Prasad0
Naveen Yadlapalli0
Shashank Bakre0
Date of Patent
August 1, 2006
0Patent Application Number
110108450
Date Filed
December 13, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An electronic ballast (100) for powering at least one gas discharge lamp (30) at two light levels includes a full-wave rectifier circuit (120) and a detector circuit (200). Detector circuit (200) provides an output voltage that is dependent on the states of two on-off switches (S1,S2), but that is substantially unaffected by typical X capacitances that are present between the hot and neutral input connections of the ballast.
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