Assignment: Inductors and Operations

Directions: Please answer BOTH of the questions and respond to a minimum of two of your classmates.

Question A

Discuss some limitations of utilizing op amps to simulate inductors. Include some reasons why op amps are ideal for the construction of graphic equalizers.

Question B

Discuss one of the miscellaneous applications from the chapter that you were able to confirm its operation in MultiSIM. Describe how you went about confirming the operation.

Op-Amp Circuit Collection

1. Read Appendix D
2. Answer the following questions:

1. For a simulated inductor application, to yield L = 50mH, R₁ = 2kohm, and C₁ = 100uF, determine required value of R₂.
2. For a constant current generator, with a saturation voltage = 15V and a current reference of 18mA, calculate R_Lmin.
3. For a precision rectifier application, given E_IRMS = 5V, determine E_Opeak.
4. For an AC to DC converter, given E_IPeak = 6V, determine E_I.
3. Include all calculations in a Word document with the title: "HW8_StudentID", with your student id substituted in the file name. Show all work for full credit.
4. Upload file "HW8_StudentID"

Op-Amp Circuit Collection LAB

The purpose of this lab is to allow students with the opportunity to pull from all of the concepts presented in the course and be able to construct a circuit for a real time industry application. This lab will showcase all that was learned in the previous labs and allow for students to gain a greater appreciation of the important role that analog integrated circuits play in modern electronics.

1. Read the section D.10 Curve Fitting Filters from the Appendix D from the textbook (Op Amps for Everyone Fourth Edition).

2. Review the curve fitting equalization application discussed in this section (RIAA - Recording Industry Association of America).

3. Design the equalization preamplifier in Figure D.12 by understanding the circuit design requirements on page 269.

4. Perform AC Analysis to plot the response of the preamplifier. Take the Screenshots of the response and show the approximation of RIAA equalization curve.

5. Answer the following questions:

a. Describe the operations of this preamplifier circuit and explain how these preamplifier circuits work with single-supply circuits in limiting low frequency resonating components from the signal?

b. Discuss what parameters can independently adjusted to enhance the quality of sound.

c. Discuss the advantages of using this equalization preamplifier for sound reproduction.

6. Create a new word document called "Lab8_StudentID.docx" with your GID substituted into the file name.

7. Verify all the measurements from the simulation. Save the results and paste the screen captures in the word document. Make sure to answer the questions.

8. Upload file "Lab8_StudentID" in Blackboard.

Final

This item covers Weeks 5-8. Scan, handwrite answers and upload solutions. Show all required calculations for full credit.

1. Design a 16-Bit DAC Circuit

I. Calculate the values for all resistors

II. Include calculations and schematic

III. Capture a screenshot of several input/output settings from the 16-Bit DAC Circuit

2. For a Wien-bridge oscillator

I. Given R = 50Kohm and C = 100nF what is the frequency of oscillation?

II. Given a required frequency of oscillation of f = 10kHz and R = 8kohm, what should the value of C be?

3. Calculate the signal to noise ratio given RMS Noise Voltage = 20mV and RMS Signal Voltage = 2.5V

4. Calculate E_TotalRMS given e²_1RMS = 5V and e²_2RMS = 7V

5. Calculate SNR(dB) given a noise specification of 680nV

6. Calculate the noise specification given SNR(dB) = 350dB

7. For a simulated inductor application, to yield L = 75mH, R₁ = 3kohm, and C₁ = 200uF, determine required value of R₂.

8. For a constant current generator, with a saturation voltage = 20V and a current reference of 30mA, calculate R_Lmin.

9. For a precision rectifier application, given E_IRMS = 5V, determine E_Opeak.

10. For an AC to DC converter, given E_IPeak = 10V, determine EI.