Process for the cutting-off of a thyristor

Details Process for the cutting-off of a thyristor Process for the cutting-off of a thyristor

1980-08-28

1983-05-31

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252A, 307252J, 307305, 307311, 357 30, 357 38, H03K 1772

Patent

active

043862837

ABSTRACT:
A process for interrupting load current in a thyristor to switch-off current conduction through the thyristor, as well as a semiconductor module for implementation of the process. In the process, a semiconductor diode is connected in parallel to the thyristor and a photocurrent is produced in the diode to switch-off current conduction in the thyristor, the diode then taking over the load current of the thyristor. The photocurrent can be optionally produced by means of an electro-magnetic radiation (light) or by means of a bombardment with electrons. The process permits considerable reduction in the complexity of the cut-off circuit and separation of this circuit in a galvanic fashion from the load circuit. The semiconductor module provided for implementing the process includes a thyristor and a radiation sensitive diode disposed in parallel with the thyristor and commonly integrated into the thyristor semiconductor structure.

REFERENCES:
patent: 3096442 (1963-07-01), Stewart
patent: 3476941 (1969-11-01), Bonin
patent: 3535532 (1970-10-01), Merryman
patent: 3694670 (1972-09-01), Marzolf

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