Semiconductor switch circuit

Details Semiconductor switch circuit Semiconductor switch circuit

1976-07-13

1977-11-15

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252T, 307305, H03K 1772

Patent

active

040587410

ABSTRACT:
A semiconductor switch is composed of at least a 4-terminal PNPN switch. The cathode gate and the anode gate of the PNPN switch are connected to a current-supplying type constant-current circuit with a power supply for feeding a current into the cathode gate and to a current-sinking type constant-current circuit without any power supply for taking out a current from the anode gate, respectively. A change-over circuit is connected between both the constant-current circits for automatically selecting a path of a drive current from the current-supplying type constant-current circuit to either selected one of the cathode gate and the anode gate or the current-sinking type constant-current circuit in response to the electrical potential of the PNPN switch. The semiconductor switch circuit composed of the 4-terminal PNPN switch may be thus controlled economically with a single power supply without any wasteful power consumption.

REFERENCES:
patent: 3307049 (1967-02-01), von Bernuth et al.

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