Integrated IC-like Thyristor-based Switching Structure for Pulse Current Generation to Electronic Ignition

A novel IC-like integration device structure and manufacture process for a thyristor-based capacitor discharging circuit applicable to pulse current generation are studied in this paper. Two structures are compared by means of different design of diode which used as for trigger main thyristor. Substitution of a Zener diode with a p⁺ n avalanche diode in the equivalent circuit can give more stability of pulse-voltage temperature property. Simulation results by Silvaco commercial simulation software indicate that a shallow junction of the avalanche diode has a much improvement in the manufacture process as well as the stable operation at elevated temperature