US Patent 7321200 Square wave drive system
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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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US Patent 07321200 Square wave drive system US Patent 7321200 Square wave drive system
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Patent Number
0732120000
Patent Number
732120000
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Official Website
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Patent Jurisdiction
Patent Number
073212000
Date of Patent
January 22, 2008
0Patent Application Number
112401150
Date Filed
September 30, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
073212000
Date of Patent
January 22, 2008
0Patent Application Number
112401150
Date Filed
September 30, 2005
0Official Website
Patent Primary Examiner
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US Patent 07321200 Square wave drive system
Infobox
Is a
Patent jurisdiction
Patent number
07321200
Date of patent
January 22, 2008
Patent application number
11240115
Date Filed
September 30, 2005
Patent primary examiner
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