Laboratory 6 - Laboratory 6 First Order Circuits RC And RL...

Laboratory 6
First Order Circuits: RC And RL Transients Using PSPICE
Devun Pahwa
ENME350 Sec 0104
Date: 3/18/2011

0
V 1
5 V d c
R 1
1 k
R 2
1 k
C 1
1 u F
U 1
1 m s
1 2
V
Ti me
0s 0.5m s 1.0m s 1.5m s 2.0m s 2.5m s 3.0m s 3.5m s 4.0m s 4.5m s 5.0m s 5.5m s 6.0m s
V(R2:2)
1.0V
2.0V
3.0V
4.0V
5.0V
Data and Observations
Figure 1: Simulated Circuit for Exercise 6.1 with voltage pin
Figure 2: Voltage Graph output of Simulated Circuit above when R
1
=R
2
=1000 Ω

Ti me
0s 0.5m s 1.0m s 1.5m s 2.0m s 2.5m s 3.0m s 3.5m s 4.0m s 4.5m s 5.0m s 5.5m s 6.0m s
V(R2:2)
1.0V
2.0V
3.0V
4.0V
5.0V
Ti me
0s 0.5m s 1.0m s 1.5m s 2.0m s 2.5m s 3.0m s 3.5m s 4.0m s 4.5m s 5.0m s 5.5m s 6.0m s
V(R2:2)
0V
2.0V
4.0V
6.0V
Figure 3: Voltage Graph of Simulated Circuit of same design as Figure 1 except R
1
=100 and R Ω
2
=1000
Ω
Figure 4: Voltage Graph of Simulated Circuit of same design as Figure 1 except R
2
=100 and R Ω
1
=1000
Ω

0
V 1
5 V d c
R 1
1 k
R 2
1 k
C 1
1 u F
U 1
1 m s
1 2
I
Ti me
0s 0.5m s 1.0m s 1.5m s 2.0m s 2.5m s 3.0m s 3.5m s 4.0m s 4.5m s 5.0m s 5.5m s 6.0m s
-I (C1)
-6.0mA
-4.0mA
-2.0mA
0A
2.0mA
Figure 5: Simulated Circuit for Exercise 6.1 with current pin
Figure 6: Current Graph of Simulated Circuit of same design as Figure 5 with R
2
=R
1
=1000 Ω