US Patent 7327099 Ballast having a dimming device
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Patent abstract
A ballast having a dimming device for a low-pressure discharge lamp. For brightness control, the DC component of the periodically modulated envelope of the lamp current is varied. In this case, the current does not fall below predetermined minimum values for the lamp current. Phases with a high lamp current are characterized by a steep rising edge, compared with a flatter falling edge.
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Patent Jurisdiction
Patent Number
73270990
Date of Patent
February 5, 2008
0Patent Application Number
113771130
Date Filed
March 16, 2006
0Patent Primary Examiner
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US Patent 07327099 Ballast having a dimming device US Patent 7327099 Ballast having a dimming device
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Patent Number
0732709900
Patent Number
732709900
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Official Website
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Infobox
Is a
Patent Jurisdiction
Patent Number
073270990
Date of Patent
February 5, 2008
0Patent Application Number
113771130
Date Filed
March 16, 2006
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
073270990
Date of Patent
February 5, 2008
0Patent Application Number
113771130
Date Filed
March 16, 2006
0Official Website
Patent Primary Examiner
Edits on 17 Jun, 2022
Golden AI
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US Patent 07327099 Ballast having a dimming device
Infobox
Is a
Patent jurisdiction
Patent number
07327099
Date of patent
February 5, 2008
Patent application number
11377113
Date Filed
March 16, 2006
Patent primary examiner
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