Network Solving and Equivalent Circuits
Experiment 2
ECE 206
Experiment #2
Network Solving and Equivalent Circuits
by
Mauro Rodriguez
TA: Johnson Liu
Section: F6
Bench Number 4
ECE 206
Mauro Rodriguez
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Network Solving and Equivalent Circuits
Experiment 2
Question 1 (Part a): Looking through Node C
Draw the Thevenin and Norton equivalent circuits. Label the voltage source, current source, and
resistances with values you measured
in lab. Do not use calculated values from the prelab. Also
label nodes G and C in your equivalent circuits.
(Part a)
Thevenin Equivalent Circuit
Norton Equivalent Circuit
=
=
V
V
C
T
4.664 Volts
=
=

I
I
ckt
short
N
1.5656 mAmperes
=
R
T
2.9448 k
Ω
=
R
T
2.9448 k
Ω
(Part b): Using your result from the previous part, reduce the circuit on page 23 to its Thevenin
equivalent. Draw the reduced circuit. Calculate the voltage across the various load resistances
listed in the table on page 24. How do these calculated values compare to your measured values?
Compute percent errors.
Thevenin Equivalent Circuit
Figure (Part b):
=
V
T
4.622 Volts
=
R
T
2.9948 k
Ω
Using Voltage Division to Calculate
V
C
For
Ω
=
k
R
load
100
Computed value:
V
k
k
V
k
R
R
V
R
V
T
load
T
load
C
487
.
4
9948
.
2
100
622
.
4
100
=
Ω
+
Ω
⋅
Ω
=
+
=
⋅
Measured Value:
V
V
C
448
.
4
=
. Therefore,
Percent error=
=
⋅

%
100
V
V
V
Cmeasured
Ccomputed
Cmeasured
0.876%
For
Ω
=
k
R
load
10
ECE 206
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 Spring '08
 Zhang
 Thévenin's theorem, Equivalent Circuits, Mauro Rodriguez

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