Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 29, 2008
Patent Application Number
11462399
Date Filed
August 4, 2006
Patent Primary Examiner
Patent abstract
A soft start circuit includes a constant current source for generating a constant current, a first current mirror circuit for generating from the constant current a first mirror current, a second current mirror circuit for generating from the constant current a second mirror current smaller than the first mirror current, and a capacitor into which a difference between the first mirror current and the second mirror current is introduced, wherein a divided voltage of a charging voltage thereof is output as a soft start voltage. The soft start circuit provides a gradual soft start voltage.
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