Gate-turn-off thyristor failure detecting circuit

Details Gate-turn-off thyristor failure detecting circuit Gate-turn-off thyristor failure detecting circuit

1983-10-31

1986-07-15

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

307252L, 324158SC, 363 54, 363 68, G08B 2100

Patent

active

046009175

ABSTRACT:
A gate-turn-off thyristor failure detecting circuit includes a detector which detects an off-gate signal for a gate-turn-off thyristor and a current level detector which compares the signal with a predetermined value and produces an output signal indicative of the failure of the gate-turn-off thyristor.

REFERENCES:
patent: 3277371 (1966-10-01), Marcus et al.
patent: 3962624 (1976-06-01), Ostlund et al.
patent: 4084221 (1978-04-01), Ogato
patent: 4100434 (1978-07-01), Iyotani et al.
patent: 4203047 (1978-09-01), Seki
patent: 4223236 (1980-09-01), Iyotani et al.
patent: 4371909 (1983-02-01), Kano

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