Semiconductor channel switch

Details Semiconductor channel switch Semiconductor channel switch

1976-07-21

1978-08-15

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252R, 307247R, 307252B, 340166R, H04Q 350, H04K 1760

Patent

active

041074726

ABSTRACT:
A plurality of PNPN switches, each permitting current flow in either, i.e., positive or negative, direction, are arranged at the cross points between the rows and the columns of the speech paths so as to form a matrix. The gate trigger terminal of each PNPN switch is connected with a gating current circuit having a high impedance, which circuit is adapted to control ON and OFF operations of the switch. A plurality of means are provided to selectively turn the gate current circuits on and off so that gate current is supplied continuously for the gate terminal of any desired PNPN switch at least for the time during which the corresponding cross point of the matrix is to be electrically bridged.

REFERENCES:
patent: 3542963 (1970-11-01), Aagaard
patent: 3601154 (1971-08-01), Potter
patent: 3688051 (1972-08-01), Aagaard
patent: 3760361 (1973-09-01), Leger
patent: 3832495 (1974-08-01), Hovagimyan
D. C. Gate for Silicon Controlled Rectifiers, G. W. Allen et al., IBM Tech. Disclre. Blln. vol. 13, No. 6, 11/70.

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