Solid state switch

Details Solid state switch Solid state switch

1978-08-11

1980-07-15

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307253, 307305, H03K 1772

Patent

active

042130662

ABSTRACT:
A semiconductor circuit actuable by a low power input signal for controlling the application of a power source to a load. The input signal is applied to a control circuit for biasing a gate controlled switch (GCS) on and off. The control circuit comprises a diode responsive to a positive input signal for conducting turn-on bias current from the input to the gate electrode of the GCS, and a pull-down transistor responsive to a ground potential input signal for conducting turn-off bias current from the gate electrode of the GCS to a ground potential. A power transistor responsive to the state of conduction of the GCS operates to conduct current from the power source to the load when the GCS is turned on and to disconnect the power source from the load when the GCS is turned off.

REFERENCES:
patent: 3064145 (1962-11-01), Heckelman
patent: 3343046 (1967-09-01), Ladd, Jr.
patent: 3343104 (1967-09-01), Motto, Jr.
patent: 3504197 (1970-03-01), Shibuya
patent: 3891866 (1975-06-01), Okuhara et al.
patent: 4117351 (1978-09-01), Kalfus et al.

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