US Patent 7394444 LED driver
Patent 7394444 was granted and assigned to Samsung on July, 2008 by the United States Patent and Trademark Office.
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Patent abstract
The present invention relates to an LED driver for driving light emitting diodes. The LED driver comprises a linear mode driver to increase and decrease a linear mode current to make a current flow in the LED at a predetermined target current value and output it to the LED; and a switch mode driver to increase and decrease a switch mode current depending on whether the linear mode current exceeds a predetermined reference current value and output it to the LED. Thus, the present invention provides an LED driver having high power efficiency and light efficiency and minimal distortions of a driving current.
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US Patent 07394444 LED driver US Patent 7394444 LED driver
Infobox
Patent Number
0739444400
Patent Number
739444400
Edits on 23 Mar, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073944440
Date of Patent
July 1, 2008
0Patent Application Number
112628070
Date Filed
November 1, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
073944440
Date of Patent
July 1, 2008
0Patent Application Number
112628070
Date Filed
November 1, 2005
0Official Website
Patent Primary Examiner
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US Patent 07394444 LED driver
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07394444
Date of patent
July 1, 2008
Patent application number
11262807
Date Filed
November 1, 2005
Patent primary examiner
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