Feedback sharpening of Josephson interferometer switching characteristics

Transfer characteristics of Josephson interferometers made with nonhysteretic junctions can be improved using positive feedback. Numerical calculations show that an interferometer’s continuous current transfer characteristic can be sharpened to a step function by sending some of the output current b...

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Bibliographic Details
Published in:Journal of applied physics 1980-11, Vol.51 (11), p.5898-5900
Main Authors: Howard, R. E., Jackel, L. D., Epworth, R. W.
Format: Article
Language:English
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Summary:Transfer characteristics of Josephson interferometers made with nonhysteretic junctions can be improved using positive feedback. Numerical calculations show that an interferometer’s continuous current transfer characteristic can be sharpened to a step function by sending some of the output current back through a control current path. Logic circuits using feedback should have fairly wide operating margins. In some configurations parallel fanout is possible.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.327555