FUZZY SIGNIFICANT CIRCUIT

摘要

PURPOSE:To attain high operating speed and to attain accurate fuzzy logical operation by forming the circuit with the 1st fuzzy limit difference circuit inputing two currents representing the variable of operation and the 2nd fuzzy limit difference circuit inputting an output current of the 1st circuit and a current representing ''1'' of the fuzzy logic and representing the result of fuzzy significant operation from the output. CONSTITUTION:When a sweep-out input current Iy is given to an input terminal 4 of an input drain (gate) side of a current mirror, a sweep-out current having a value Iy equal to it is obtained at the output drain. An input terminal 3 giving a sweep-out input current Ix and an output terminal 5 via a diode 2 being in opposite direction to the sweep-out direction are connected to the output drain. Since the current of the ix is drawn by the current source connected to the terminal 3, an output current of Iz=Ix-Iy is sucked from the terminal 5 through the diode 2 only with Ix>Iy.