Abstract: The invention relates to an apparatus for providing capacitor charging and triggering in so-called electronic ignition systems comprising flywheel magnetos with a plurality of poles. The triggering pulses are arranged phase-shifted in time in relation to the charging pulses, whereby charging the capacitor in question is prevented after triggering initiating ignition. By arranging three windings, for example, connected in series on three adjacent magnetic core legs as capacitor charging pulse generating windings, and bridging over three adjacent ones with a rectifier with a polarity for passing through negative half pulses, a rather constant charging voltage is obtained for a wide range of the engine rpm.

Abstract: This invention provides an improvement in a flywheel magneto having a thyristor controlled capacitive ignition system including a flywheel having permanent magnets and at least one cooperating coil core which has three pole legs and at least one charging coil and one trigger coil. The improvement therein comprises a charging coil arranged on the intermediate pole leg of the coil core and a trigger coil being arranged on the last pole leg when viewed in the direction of rotation of the flywheel.