# Oscillator Circuits

Assignment
Oscillator Circuits
Read Chapter 11 SECTION 3 in the text.
List the general requirements for oscillation
How does an RC combination affect the phase plot of an oscillator
For a Wien-bridge oscillator
Given R = 20Kohm and C = 10nF what is the frequency of oscillation?
Given a required frequency of oscillation of f = 3kHz and R = 5kohm, what should the value of C be?
Save all work in a Word document with the title: ?HW6_StudentID?, with your student id substituted in the file name. Show all work for full credit.
Lab
Oscillator Circuits
The purpose of this lab is to learn to use MultiSIM to construct and simulate oscillator circuits. Two oscillator circuits will be constructed and the effect of feedback resistance will be investigated in order to produce oscillation. Students will be asked to extend the concepts presented in order to modify the given circuit to allow for a variable output frequency.
WATCHthe video Week 6 ? Oscillator Circuit
Read the section 11.3 and construct the two oscillator circuits in Figure 11.3 from the textbook and simulate the circuits.
Use the Agilent oscilloscope to observe the oscillations and measure the frequency.
Analyze the oscillations of Op-Amp and Comparator circuit and compare the Op-Amp circuit with that of the Comparator circuit.
Capture the screenshots showing oscillating output waveforms for each of the circuits.