Find the output of the ideal operational amplifier shown in Figure 7-28 (p. 332) for each of the following input signals: (a) vi = 120 mV dc (b) vi = 0.5 sin ωt V. 7-3. (modified) Find the current in the feedback

Find the output of the ideal operational amplifier shown in Figure 7-28 (p. 332) for each of the following input signals: (a) vi = 120 mV dc (b) vi = 0.5 sin ωt V. 7-3. (modified) Find the current in the feedback

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 1PA: You are working as an electrician in a large steel manufacturing plant, and you are in the process...

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Concept explainers

Operational Amplifier

An operational amplifier also called op amp is an integrated circuit or analog circuit that takes input as a differential voltage and produces output as a single-ended voltage. It is an IC that can amplify weak electric signals.An op amp has one output pin and two input pins. The basic role of an opamp is to amplify the voltage difference between the two input voltages. It is also used in filtering or to perform mathematical operations or in signal conditioning.

Question

7-1 (a, b) Find the output of the ideal operational amplifier shown in Figure 7-28 (p. 332) for each of the following input signals: (a) vi = 120 mV dc (b) vi = 0.5 sin ωt V.

7-3. (modified) Find the current in the feedback resistor for each part of Exercise 7-1 (a,b). (HINT: i_f = i₁).

(Only 7-3)

39 kN
15 k2
Vi o w
O Vo
FIGURE 7-28 (Exercise 7-1)

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