Patent ID: 6951201
Filing Date: 2005-10-04
Classification: F01N,F02D,F02M,F02P,Y02T

Abstract:
1. An integrated ignition system, comprising: an ignition coil comprising a primary winding with a first and a second end and a secondary winding with a first and a second end; a coil driver circuit having a first end operably connected to said second end of said primary winding; an ionization detection circuit having at least two inputs and an output, wherein a first input is operably connected to said second end of said primary winding, and a second input is operably connected to said first end of said secondary winding; a switch having at least two inputs and an output, wherein a first input is operably connected to said output of said ionization detection circuit, a second input is operably connected to a second end of said coil driver circuit, whereby said output of said switch is multiplexed between an ionization signal and a charge current feedback signal; and an ignition plug operably connected between said second end of said secondary winding and ground.