Circuitry for reducing thyristor turn-off times

Details Circuitry for reducing thyristor turn-off times Circuitry for reducing thyristor turn-off times

1974-06-20

1976-03-09

Shoop, William M.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252C, 307305, H02M 3135

Patent

active

039434303

ABSTRACT:
A circuit for reducing thyristor turn-off time includes a thyristor connected between a power source and a load. A voltage source is connected between the anode and the cathode of the thyristor for applying across the anode and the cathode of the thyristor, upon actuation of a switch, an electrical signal sufficient to block the forward current of the thyristor. A rectifier and an impedance connected between the gate and the cathode of the thyristor cause a reverse current to flow in the gate of the thyristor upon application of the voltage source.

REFERENCES:
patent: 3353032 (1967-11-01), Morgan et al.
patent: 3404293 (1968-10-01), Harris et al.
patent: 3501650 (1970-03-01), Phoenix
patent: 3544818 (1970-12-01), Harris
patent: 3667021 (1972-05-01), Anderson et al.
patent: 3846644 (1974-11-01), Takagi et al.

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