Light triggerable thyristor with controllable emitter-short circ

Details Light triggerable thyristor with controllable emitter-short circ Light triggerable thyristor with controllable emitter-short circ

1982-09-09

1985-04-02

Clawson, Jr., Joseph E.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

357 30, 357 35, 357 43, 357 86, 307252A, 307252C, 307570, H01L 2974

Patent

active

045090696

ABSTRACT:
A light-triggerable power thyristor having controllable emitter short circuits in the form of MIS transistors which are conductive in the blocking condition of the thyristor and suppressed during the ignition operation. An optically controlled npn lateral transistor is integrated on the cathode side of the thyristor in the light-irradiated emitter region, the collector of the npn lateral transistor being connected to the gates of the MIS transistors, its emitter being formed by a part of the thyristor emitter and its base consisting of a part of the p-base of the thyristor. The gates of the MIS transistors are connected to the anode of the thyristor over a charging resistor.

REFERENCES:
patent: 4224634 (1980-09-01), Suedberg
patent: 4244000 (1981-01-01), Ueda et al.

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