Impulse transformer

Claim 1

An impulse transformer for motor vehicle ignition systems equipped with at least one ignition cable, comprising: an annular core for receiving the ignition cable; a housing fabricated of synthetic material encapsulating said core; a single stamped flat member, comprising a winding and including a single turn on said core, said member having respective end portions and a mid-portion integral with said end portions and a step-like profile corresponding to two letters L''s having respective base segments facing each other, said letter L''s being placed one above the other, the ends of the base segments being connected by a bridge extending in the direction of the long segments of the L''s, the bridge having a length corresponding to the height of said annular core, each of said end portions being apportioned into an intermediate portion and a tip portion with said tip portion being in the form of a flat plug contact suitable for insertion into a plug-in socket, said intermediate and said tip portions being mutually adjacent and disposed flat in a common plane at a predetermined spacing from each other, said intermediate portions being disposed within said housing of synthetic material and having edges formed thereon which extend in a direction transverse to the longitudinal direction of said tip portions, and said housing having mounting portions for receiving said edges.