Activity 2: You are asked to examine the performance of three op-amp circuits. 2-A) Categorize the circuits in terms of using a feedback or not, and the specific type of the feedback connection (positive or negative, shunt or series, voltage or current). 2-B) Explain the principle of operation of Circuit A. Explain limitations of this circuit in terms of practical applications. What is the technical name describing this circuit? 2-C) Explain the principle of operation of Circuit B. What is the advantage of this circuit compared to Circuit A? What is the technical name describing this circuit?
Activity 2:
You are asked to examine the performance of three op-amp circuits.
2-A) Categorize the circuits in terms of using a feedback or not, and the specific type of the
feedback connection (positive or negative, shunt or series, voltage or current).
2-B) Explain the principle of operation of Circuit A. Explain limitations of this circuit in terms
of practical applications. What is the technical name describing this circuit?
2-C) Explain the principle of operation of Circuit B. What is the advantage of this circuit
compared to Circuit A? What is the technical name describing this circuit?
2-D) Explain the principle of operation of Circuit C. What is the advantage of this circuit
compared to Circuits A and B? What is the technical name describing this circuit?
2-E) Draw the block diagram of Circuit C and define the forward path gain A and feedback
path gain β. Derive the overall circuit gain relating input to output.
2-F) Build all circuits in MultisimTM using one ‘uA741CP‘op-amp IC fed by ±10V dc power
supply, and input signal of Vin = 1 + 2.5 sin(2π100t) volts. Use resistors Rf = 100 kΩ and
R = 10 kΩ. Use the oscilloscope to display input and output signals, and take screen shots
of your setup and output. Compare your test findings with theory, and list all
discrepancies and related possible causes.
2-G) As a practical scenario, a noise signal is added to the input as 1cos(2π1000t) volts. Resimulate circuits A and B and report the output voltage. What is the advantage of using
Circuit B compared to Circuit A.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 6 images
