Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1982-06-30
1984-06-05
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307500, 307501, 307579, 307585, 307270, 307297, 323315, 330288, H03K 19003, H03K 1704, H03K 19017, G11C 2700
Patent
active
044530943
ABSTRACT:
The present invention relates to a threshold amplifier suited to integrated circuit fabrication of a process employing CMOS technology. The threshold amplifier is designed to sense current producing a first or a second logic level as a function of a current threshold. The amplifier comprises a p-channel device and a n-channel device serially connected across the bias supply. The gate to source voltages of the two devices are respectively controlled by a diode connected p-channel device similarly serially connected across the bias supply with a diode connected n-channel device, the source of the latter being returned to ground via a current carrying resistance also in the second series path. The output level which is taken at the drain inter-connection between the devices in the first series path depends on the relative conductivity of the two devices which is in turn affected by the induced voltage drop in the source connected resistance in the second series path. The threshold voltage may be controlled by the geometry ratio between the n-channel devices, and the current setting in the second series path.
REFERENCES:
patent: 3702943 (1972-11-01), Heuner et al.
patent: 4264874 (1981-04-01), Young
patent: 4300091 (1981-11-01), Schade, Jr.
patent: 4302690 (1981-11-01), Gollinger et al.
patent: 4375038 (1983-02-01), Crosby
Brown Thomas A.
Dissosway Marc A.
Peil William
Bertelson David R.
General Electric Company
Lang Richard V.
McMahon John P.
Miller Stanley D.
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