Lab 5 - EE 420L 

Authored by Iain Drews, drewsi2@unlv.nevada.edu

Today's date: 3/6/15

Lab description

• Calculate the frequency response of the following circuit. Ensure you show your clear hand calculations.
• What can you neglect to simplify the calculation?
• R2, the 100k Resistor
  
• Does the circuit work if you remove the 100k? Why or why not?
• No it will result in infinite DC gain
  
• Does the 100k have much of an effect on the frequency response?
• not of the frequency reponse but it will create an offset which can be seen in the time domain

• Verify your calculations with experimental results.

Frequency: 50Hz Gain: not obtainable with this topology
Frequency: 50Hz Gain: 3.16 Estimated gain: 3.18
Frequency: 100Hz Gain: 1.64 Estimated gain: 1.59
Frequency: 500Hz Gain: .336 Estimated gain: .318
Frequency: 1000Hz Gain: .16 Estimated gain: .159
Frequency: 5000Hz Gain: .032 Estimated gain: .032

• Next, design, simulate, and build a square-wave to triangle wave generation circuit. 
• Assume the input/output frequency is 10 kHz and the output ramp must swing from 1 to 4 V centered around 2.5 V.
• Show all calculations and discuss the trade-offs (capacitor and resistor values, input peak, min, and average, etc.)