C(s) 5. Using the Mason's gain formula, obtain the closed loop transfer function R(s) for Figure 5. G₁(s) G2(8) G3(5) G4(8) G5($) R(s) C(s) V4(s) V3(8) V2(8) V₁(8) H₁(s) H2(8) Gg(s) G6(s) G7(8) V6(8) V5(s) H4(s)

B3

- V2 15Vdo 3 U1A R1 2 1k V- LM324 1k V3 15Vde | VOFF = 0 VAMPL = 1 FREQ = 2k AC = 0 0. R2 Figure 4. Operational amplifier circuit. What frequency does the output voltage (across R3) have? What is the amplitude of the output voltage? From the output waveform and the input waveform, determine the gain of the op-amp circuit. Does this match with what you predicted? How could you change this circuit so that the output voltage would be nearly the same as the input voltage? What purpose would that serve? Can you modify the existing circuit and verify this experimentally? What is the phase difference between the output and input voltage? Derive the transfer function for the output-input relationship for the operational amplifier. How would the gain and the output change if a capacitor were in the feedback path instead of a resistor? (Examine the circuit using phasors and impedance and circuit analysis techniques). -w-

General Directions: Read the questions carefully and answer (3*10=30marks) 1. Design a summing amplifier by choosing appropriate values of resistors an so that the output is 5 times the sum of the input voltages. (you are free to use any number of inputs, the type of op-amp, any value of resistors) 2. Derive the equation for the closed loop gain of the inverting and non-inverting Amplifier using appropriate circuit diagrams. 3. Determine the values read by the measuring devices using appropriate formulae www Voc +8V R₁ 33 k Rc 2.2 k ww WWW Poc 200 R₁₂ RE 10 kn 1.0 kn

Subject: Analog Electronic and Circuit Please Solve this question

Consider the active circuit with the schematic:   (ONLY ANSWER C-E) a. Assuming it's an ideal op amp, derive the circuit’s transfer function as a function of frequency, H(jw). Make sure it in canonical form.b. We want a DC gain of 40dB. If the op amp has value of Rin = 10MΩ and Rout = 50Ω, choose appropriate values for R1 and R2. Explain why your selected values of R1 and R2 allow you to ignore Rin and Rout for the remainder of the problem. c. If L = 1H, sketch the straight-line approximation of the Bode plot for the circuit’s gain assuming the op amp can still be considered as ideal.d. The op amp you select turns out to be non-ideal, and it has a real pole at wC = 1krad/s. Write the updated transfer function for your circuit (using your values of R1, R2, and L = 1H). Make it in the canonical form.e. Sketch the straight-line approximation of the Bode plot for the circuit with your updated transfer function from D.

4. The following equation needs to be solved in an application circuit using op-amps. Indicate the type of amplifier required along with the required voltage gain value. P = 6X-9Y i. Amplifier 1: ii. Amplifier 2: iii. Amplifier 3: Gain = Gain = Gain =

This is a practice question from my Introduction to Electronics course. Please talk me through the process. Thank you for your assistance.

2. You are given an op-amp with fr = 1 M Hz and told that the open-loop gain follows the standard 20 dB/decade fall off. You use this op-amp to build a "times one hundred" inverting amplifier. (a) Sketch the circuit to carry out this amplification and show the values of any external components that you will use. (b) What are the input, Zin, and output, Zout, impedances of your circuit? (c) At what frequency will the gain of your amplifier circuit hit the open-loop gain of the op-amp?

Let me know what you come up with.