Load current control-type logic circuit

Details Load current control-type logic circuit Load current control-type logic circuit

1989-05-30

1990-10-30

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307450, 307475, 307544, H03K 19017, H03K 19094, H03K 19084, H03K 1920

Patent

active

049671057

ABSTRACT:
An inverter portion, which is to be basic logic circuit, includes switching FETs corresponding to input terminals and a load FET. A logic signal inputted into each of the input terminals drives each corresponding switching FET, thereby to output a prescribed logic signal from an output terminal. Further, a load for restricting a current flowing in the load FET is connected between the gate and the source of the load FET. In addition, a load current control FET is provided for controlling the current in this load. A gate potential of the load current control FET is produced by a diode OR circuit. The diode OR circuit outputs a logic OR of the logic signals inputted into the respective input terminals, and supplies it to the gate of the load current control FET as a load current control signal.

REFERENCES:
patent: 4177390 (1979-12-01), Cappon
patent: 4703204 (1987-10-01), Pham
patent: 4725743 (1988-02-01), Anderson
patent: 4760293 (1988-07-01), Hebenstreit
patent: 4771189 (1988-09-01), Noufer
patent: 4788460 (1988-11-01), Kobatake
patent: 4789798 (1988-12-01), Lach
patent: 4800303 (1989-01-01), Graham et al.
patent: 4835423 (1989-05-01), De Ferron et al.
patent: 4877976 (1989-10-01), Lach et al.

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