which time diode 19 again becomes forward biased causing the charging of capacitor 20 to resume it is noted that the mechanical gap of the breaker points 21 has increased during the time the diode 19 was reverse biased due to the mechanical driving arrangement operating the breaker points with the result that the points are sufficiently separated at the time the diode 19 again becomes forward biased to prevent any arcing subsequent to the termination of the pulse generator output pulse the resistor 17 connected in parallel with the capacitor 20 functions to drain to ground any charge accumulated thereon during the generation of the trigger pulse and inductive pulse on circuit point 27 it is noted that in the circuit of fig1 as well as the other circuits hereinafter described that the battery 11 and resistor 16 forming the battery power source could be replaced by a magnetic energy source such as a magneto also there is no requirement that these ignition systems be used with a conventional distributor some applications in which these ignition systems may be used do not include such a distributor such as motorcycles gas burner ignitors and jet engines fig2 represents an alternate circuit arrangement for decoupling the breaker points 21 from the ignition coil 18 during the generation of ignition pulses the decoupling circuit arrangement shown in fig2 is generally identified by the numberal 35 and is formed by a silicon controlled rectifier scr 36 a voltage divider made up of resistors 37 39 and an on off switch 40 for purposes of discussion the circuit points 41 42 and 43 are designated in the decoupler circuit arrangement 35.