Capacitor discharge ignition system with timing stabilization arrangement

Claim 1

In a capacitor discharge ignition system for use with a rotating permanent magnet including two poles that is rotated over a path in synchronism with the operation of an engine, the combination of: means positioned adjacent the path of the permanent magnet for generating a charging supply and for generating a triggering signal in response to induced voltages and currents resulting from the rotating permanent magnet, said generating means comprising a control winding having induced therein a voltage and current of a first polarity to generate said charging supply in response to the passage of a first pole of the magnet and having induced therein a voltage and current of opposite polarity to said first polarity to generate said triggering signal in response to passage of the second pole of said magnet; storage means connected to said generating means and being charged in response to said charging supply; ignition coil means for generating an ignition voltage; means responsive to said triggering signal for controlling the discharge of said storage means into said ignition coil means; and means responsive to said rotating permanent magnet for stabilizing said triggering signal over a wide range of engine speeds, said stabilizing means being effective during the generation of said triggering signal and being inoperative during the generation of said charging supply, said stabilizing means comprising a stabilizing winding, one end of said stabilizing winding being connected to one end of said control winding, said connected coil ends of said stabilizing winding and said control winding being the winding ends having induced voltages of common polarity, said stabilizing means further comprising circuit means operative during the passage of said second magnet pole for connecting said stabilizing winding across said control winding such that said stabilizing winding and said control winding are in a series loop.