Semiconductor switch circuit

Details Semiconductor switch circuit Semiconductor switch circuit

1977-06-28

1980-11-04

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307305, 307252T, H03K 1772

Patent

active

042322340

ABSTRACT:
In a semiconductor switch circuit employing at least one 4-terminal PNPN switch having a cathode gate and an anode gate for switching an AC signal, a current supplying circuit is connected to the cathode gate of the PNPN switch, and a current sinking circuit of constant-current type is connected to the current supplying circuit and the anode gate of the PNPN switch through a current change-over circuit. Depending on the potential of the PNPN switch, the current change-over circuit supplies selectively the current flowing into the current supplying circuit and the current flowing out from the anode gate of the PNPN switch to the current sinking circuit.
The current supplying circuit operates as a constant-current circuit owing to the current sinking function of the current sinking circuit. The semiconductor switch circuit is simple in circuit construction and can be economically integrated into an integrated circuit form.

REFERENCES:
patent: 4058741 (1977-11-01), Tokunaga et al.

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