Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1983-06-29
1985-07-23
Anagnos, Larry N.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307443, 307455, 307254, 307563, H03K 19013, H03K 19082, H03K 1920
Patent
active
045310670
ABSTRACT:
Logic circuit means for providing a binary output which is a predetermined logical function of a plurality of binary inputs, said logic circuit means including: at least first, second and third push-pull Darlington current sink (PPDCS) logic circuits, each said PPDCS logic circuit comprising: first, second and third transistors, each of said first, second and third transistors having an emitter, base and collector, said collector of said third transistor connected to a first source of potential and said emitter of said second transistor connected to a third source of potential; input circuit means, said input circuit means being adapted to receive n binary inputs, where n is a positive integer having a magnitude of two or greater, said input circuit means being connected to said collector of said first transistor and said base of said third transistor; a first resistor connected between said emitter of said first transistor and a second source of potential; a second resistor connected between said first source of potential and a common connection of said base of said first transistor and said base of said second transistor; a third resistor connected between said base of said third transistor and said first source of potential; a first diode connected across said base-collector junction of said first transistor; a second diode connected across said base-collector junction of said second transistor; output circuit means connected in common to said collector of said second transistor and said emitter of said third transistor, said output circuit means electrically manifesting the logical binary NOR function of said n binary inputs received by said input circuit means; and interconnection means interconnecting the output circuit means of each of said at least first, second and third PPDCS circuits, said interconnection means including an output terminal for manifesting said binary output of said logic circuit means.
REFERENCES:
patent: 3505535 (1970-04-01), Cavaliere
patent: 3577073 (1971-05-01), Cray
patent: 4283640 (1981-08-01), Konian et al.
patent: 4287435 (1981-09-01), Cavaliere et al.
patent: 4308469 (1981-12-01), Cavaliere et al.
patent: 4409498 (1983-10-01), Dorler et al.
Dansky et al., "Current-Controlled Gate Push-Pull Dotting", IBM Tech. Discl. Bull., vol. 24, No. 6, pp. 3031-3034, 11/1981.
Montegari, "Darlington Current Sink", IBM Tech. Discl. Bull., vol. 20, No. 5, pp. 1764-1765, 10/1977.
Beranger et al., "Emitter Coupled Logic Gate With a Dual Current Source", IBM Tech. Discl. Bul., vol. 24, No. 1B, p. 511, 6/1981.
Dansky et al., "Active Pull-Down Circuit for Current-Controlled Gate", IBM Tech. Discl. Bull., vol. 24, No. 11A, pp. 5613-5618, 4/1982.
Gruddis et al., "Collector Drive Circuit With High-Input Impedance", IBM Tech. Discl. Bull., vol. 18, No. 11, pp. 3637-3638, 4/1976.
Banker Dennis C.
Montegari Frank A.
Norsworthy John P.
Anagnos Larry N.
DeBruin Wesley
International Business Machines - Corporation
LandOfFree
Push-pull Darlington current sink (PPDCS) logic circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Push-pull Darlington current sink (PPDCS) logic circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Push-pull Darlington current sink (PPDCS) logic circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-635912