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  • 1990
  • Issue No. 6 - June
  • Abstract - Fuzzy Multiple-Input Maximum and Minimum Circuits in Current Mode and their Analyses Using Bounded-Difference Equations
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Fuzzy Multiple-Input Maximum and Minimum Circuits in Current Mode and their Analyses Using Bounded-Difference Equations
June 1990 (vol. 39 no. 6)
pp. 768-774

Multiple-input maximum and minimum circuits in current mode are proposed. The operation of these circuits is formulated using simultaneous bounded-difference equations. The exact analyses are performed by solving the bounded-difference equations. The accuracy of these circuits is better than the accuracy of binary tree realizations using two-input max/min circuits because no accumulation of errors occurs; furthermore, the operation speed is higher than the speed of the binary tree realization. The proposed circuits consist of only MOS transistors and are compatible with standard MOS fabrication processes. These circuits are useful building blocks for a real-time fuzzy controller and a fuzzy computer.

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Index Terms:
multiple-input maximum and minimum circuits; bounded-difference equations; binary tree; MOS transistors; real-time fuzzy controller; fuzzy computer; fuzzy logic; logic circuits.
Citation:
M. Sasaki, T. Inoue, Y. Shirai, F. Ueno, "Fuzzy Multiple-Input Maximum and Minimum Circuits in Current Mode and their Analyses Using Bounded-Difference Equations," IEEE Transactions on Computers, vol. 39, no. 6, pp. 768-774, June 1990, doi:10.1109/12.53598
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