High gain thyristor switching circuit

Details High gain thyristor switching circuit High gain thyristor switching circuit

1982-05-10

1985-05-28

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252F, 307252J, 307305, 357 38, H03K 1773

Patent

active

045202770

ABSTRACT:
A three terminal power switch utilizing a lateral thyristor switching circuit is disclosed which exhibits very high gain for both turn-on and turn-off. The gate turn-off capability of the lateral thyristor is accomplished utilizing a secondary shunting thyristor to pull current out of the gate in response to the turn-off signal. The output thyristor is designed to maximize its turn-off gain, and the drive thyristor is designed for optimum forward conduction characteristics; the output thyristor carries approximately ten times the current of the drive thyristor, in one embodiment.

REFERENCES:
patent: 3189783 (1965-06-01), Van Berkum
patent: 3263128 (1966-07-01), White
patent: 3821565 (1974-06-01), Horinaga
patent: 4117350 (1978-09-01), Kalfus et al.
patent: 4359655 (1982-11-01), Fukui

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