Semiconductor internal combustion engine ignition system

Claim 1

AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE COMPRISING, AN IGNITION COIL HAVING A PRIMARY WINDING AND A SECONDARY WINDINGS, A SOURCE OF DIRECT CURRENT, FIRST AND SECOND CONDUCTORS CONNECTED ACROSS SAID SOURCE OF DIRECT CURRENT, A FIRST TRANSISTOR, MEANS CONNECTING SAID FIRST TRANSISTOR AND SAID PRIMARY WINDING IN SERIES CROSS SAID CONDUCTORS, A SECOND TRANSISTOR CONNECTED ACROSS SAID CONDUCTORS, SAID SECOND TRANSISTOR CONTROLLING THE BIAS APPLLIED TO SAID FIRST TRANSISTOR, A THIRD TRANSISTOR HAVING ITS EMITTER-COLLECTOR CIRCUIT CONNECTED ACROSS SAID CONDUCTORS, A MAGNETIC PULSE GENERATOR DRIVEN BY SAID ENGINE, SAID PULSE GENERATOR HAVING A WINDING, SAID WINDING BEING CONNECTED ACROSS THE EMITTER AND BASE ELECTRODES OF SAID THRID TRANSISTORS, A RESISTOR CONNECTING THE COLLECTOR OF SAID OF THE THIRD TRANSISTOR TO ONE OF SAID CONDUCTORS, THE JUNCTION OF SAID RESISTOR AND SAID COLLECTOR FORMING A VARIABLE POTENTIAL POINTS, THE POTENTIAL OF SAID VARIABLE PORTENTIAL POINT DECREASING WHEN SAID THRID TRANSISTOR IS CONDUCTIVE, AND A ZENER DIODE CONNECTED BETWEEN SAID VARIABLE POTENTIAL POINT AND THE BASE ELECTRODE OF SAID SECOND TRANSISTOR, THE VOLTAGE OF SAID POTENTIAL POINT BEING SUFFICIENT TO BREAK DOWN SAID ZENER DIODE AND BIAS SECOND AND FIRST TRANSISTORS TO A CONDUCTIVE CONDITION WHEN SAID THRID TRANSISTORS IS AT LESS THAN FULL CONDUCTION, THE VOLTAGE OF SAID POTENTIAL POINT BEING LOWERED WHEN THE CONDUCTION OF SAID THRID TRANSISTOR IS INCREASED, SAID VOLTAGE HAVING A VALUE THAT IS NOT SUFFICIENT TO BREAK DOWN SAID ZENER DIODE WHEN THE CONDUCTION OF SAID THIRD TRANSISTOR IS INCREASED WHEREBY SAID SECOND AND FIRST TRANSISTORS ARE BIASED NONCONDUCTIVE.