Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 22, 2008
Patent Application Number
11240115
Date Filed
September 30, 2005
Patent Primary Examiner
Patent abstract
A power conversion circuit improves lamp operating life and lamp efficiency by driving a fluorescent lamp with a square wave signal. The square wave signal is an alternating current signal with relatively fast transition times. The square wave signal advantageously reduces lamp current crest factor for more efficient operation of the fluorescent lamp.
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