Lab 1 - EE 420L 

Mario Valles

January 23, 2015

Review of basic RC circuits 
Figure 1.21
Circuit 1
Circuit Schematic and Simulation

 http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/circuit1.JPG

http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/graph.JPG

Experiment Resuts
  1. Circuit 2
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/Circuit2.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/graph2.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0105.jpg
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/Equation2lab1.JPG

Calculation
Simulation
Experiment
Magnitude
.6 V
.7
.78
Phase
-6.82
10.5
5.76
Time Delay
85 u
146u
80u
Even though the number are close the result are really differen, in the simulation results the results are a lot bigger more than I expected respecting the time delay, however it might be to wrong cursor positioning.
Circuit 3

http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/Circuit3.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/graph3.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0103.jpg
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/timedelay.JPG

Calculation
Simulations
Experiment
Time delay
700u
3n
1.43m
Rise Time
2.2m
2.2n

The results in the simulation differ becuase other values are use to get a better idea of what kind of graph we are looking for. While the time dielay is double in the experiment than the calculation, this is becuase the difference in capacitance and resistance in real components
Circuit 4
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/Circuit4.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/graph4.JPG
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0096.jpg
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0098.jpg
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0099.jpg
http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/IMAG0100.jpg

http://cmosedu.com/jbaker/courses/ee420L/s15/students/vallesm/Lab%201/gain.JPG
In the ac analisys in the experiment as in the simulation we can see that the curner frequency is bewteen 150 and 550 and that as frequency increases gain decreases.

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