Method and apparatus to control an ignition system
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United States of America Patent
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Mar 30, 2021
Grant Date -
Oct 13, 2016
app pub date -
Nov 11, 2014
filing date -
Nov 14, 2013
priority date (Note) -
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Abstract
An ignition system including a spark plug control unit adapted to control at least two coil stages to provide a current to a spark plug, including two stages including a first transformer including a first primary winding inductively coupled to a first secondary winding; a second transformer including a second primary winding inductively coupled to a second secondary winding; the control unit enabled to simultaneously switch on and off two corresponding switches to maintain a continuous ignition fire, and includes a step-down converter stage with a switch and a diode. The method includes i) switching off the switch; and ii) toggling the two corresponding switches.
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