Semiconductor bidirectional switch circuit

Details Semiconductor bidirectional switch circuit Semiconductor bidirectional switch circuit

1974-09-13

1976-05-25

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252T, H03K 1772

Patent

active

039596680

ABSTRACT:
A semiconductor bidirectional switch comprising a couple of thyristor pairs connected in parallel in opposite directions, each of the pairs comprising a cathode gate drive thyristor and an anode-gate drive thyristor, is disclosed, in which the cathode-gates of the cathode-gate drive thyristors are connected to a cathode-gate drive circuit for supplying current and the anode-gates of the anode-gate drive thyristors are connected to an anode-gate drive circuit for taking out current, so that the gate current of the thyristors continues to flow without regard to the amplitude of the signal voltage, thereby permitting the AC signal current to flow therethrough without any momentary cut off even when the AC signal current is reduced below the minimum holding current level of the thyristors.

REFERENCES:
patent: 3221183 (1965-11-01), White
patent: 3257566 (1966-06-01), White
patent: 3303289 (1967-02-01), Hawley et al.

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