Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 13, 2007
Patent Application Number
11088292
Date Filed
March 24, 2005
Patent Primary Examiner
Patent abstract
A device to control the charging rate of an ignition coil for an internal combustion spark ignition engine. The device controls the turn-on rate of the primary coil by slew-rate limiting using switching devices and a Miller-effect capacitor in order to reduce secondary oscillation magnitudes originated by a sharp transition of the controlling switch.
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