(a)
Find the output voltage of the circuit.
(a)
Answer to Problem 24E
The output voltage of combined circuit is
Explanation of Solution
Given data:
Combine the two circuits by eliminating the
Connect the output of circuit shown in FIGURE 6.49 to left-hand terminal of
Value of resistance
Value of input voltage of 1st op amp
Value of input voltage of 4th op amp
Calculation:
The redrawn circuit from given data is shown in Figure 1 as follows.
The expression for nodal analysis at node voltage
Here,
The expression for the virtual ground concept across 1st op amp is as follows.
Substitute
Rearrange for
Rearrange for
Substitute
Substitute
The expression for the nodal analysis at node voltage
Here,
The expression for the virtual ground concept across 2nd op amp is as follows,
Substitute
Rearrange for
Substitute
The expression for the nodal analysis at node voltage
Here,
The expression for the virtual ground concept across 3rd op amp is as follows.
Substitute
Rearrange for
Substitute
The expression for the nodal analysis at node voltage
Here,
The expression for the nodal analysis at node voltage
Here,
The expression for the virtual ground concept across 3rd op amp is as follows,
Simplify equation (14) for
Rearrange for
Substitute
Rearrange for
Rearrange for
Substitute
Solve for
Conclusion:
Thus, the output voltage of combined circuit is
(b)
Find the output voltage of the circuit.
(b)
Answer to Problem 24E
The output voltage of combined circuit is
Explanation of Solution
Given Data:
Value of resistance
Value of input voltage of 1st op amp
Value of input voltage of 4th op amp
Calculation:
Refer to the Figure 1,
Substitute
Substitute
Substitute
Substitute
Solve for
Conclusion:
Thus, the output voltage of combined circuit is
(c)
Find the output voltage of the circuit.
(c)
Answer to Problem 24E
The output voltage of combined circuit is
Explanation of Solution
Given Data:
Value of resistance
Value of input voltage of 1st op amp
Value of input voltage of 4th op amp
Calculation:
Refer to the Figure 1,
Substitute
Substitute
Substitute
Substitute
Solve for
Conclusion:
Thus, the output voltage of combined circuit is
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Chapter 6 Solutions
Engineering Circuit Analysis
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