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Asked: 2023-07-18T13:48:33-04:00 In:

15.38 Consider the bistable circuit of Fig. 15.21(a) with the op amp’s positive input terminal connected to a positive-voltage source V through a resistor R3. (a) Derive expressions for the threshold voltages VTL and VTH in terms of the op amp’s saturation levels L+ and L−, R1, R2, R3, and V. (b) Let L+ = −L− = 5 V, V = 5 V, and R1 = 10 kΩ. Find the values of R2 and R3 that result in VTL = +1.9 V and VTH = +2.1 V

Anonymous

15.38 Consider the bistable circuit of Fig. 15.21(a) with the op amp’s positive input terminal connected to a positive-voltage source V through a resistor R3.

(a) Derive expressions for the threshold voltages VTL and VTH in terms of the op amp’s saturation levels L+ and L−, R1, R2, R3, and V.
(b) Let L+ = −L− = 5 V, V = 5 V, and R1 = 10 kΩ. Find the values of R2 and R3 that result in VTL = +1.9 V and VTH = +2.1 V

microelectronics by sedra & smith chapter 15 questions

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