ENGS 295
Introduction to Circuit Analysis Laboratory
Spring 2011
Lab 1: Introduction to DC circuits
OBJECTIVE: To experimentally verify Ohms Law, Kirchoffs Current Law (KCL) and Kirchoffs
Voltage Law
LIST OF EQUIPMENT:
Power supply
Digital multimeter
R
5SPICE
2011a Exam2 Prob 4
5
128 V
+

4
10
320 V
60
80
+

Key Points
Junctions
Use wires between elements to see
voltages
Circuit must include ground or reference
node.
DC bias tab shows output of test points.
Final Lab Report
Methods
What you did
ENGS 295
Introduction to Circuit Analysis
Due Friday, March 11, 2011.
Homework #1
1) What is the voltage drop across the 200 resistor and what is Vx ?
R= 100
R= 200
V = 12 V
Vx
R= 300
2) Problem 1.8, page 45.
3) Problem 1.23, page 47
Spring 2011
ENGS 2
Last Homework due next Wednesday
Final exam next Friday
Thevenins theorem
Nortons theorem
Source transformations
Superposition
Maximum power transfer
Lab Exam this week
Final lab next week
Load resistance (RL)
Find the power
dissipated by RL for
Norton & Thvenin with Dependent
Sources
To find RTH, zero all INDEPENDENT
sources
What about dependent sources?
Leave them in the circuit
To find RTH, place a current source (from b to
a) across the load terminals and find VS/IS.
This strategy also w
ENGS 295
Introduction to Circuit Analysis Laboratory
Spring 2011
Lab 2
OBJECTIVE: To look at the resistance of a light bulb and further verify KCL and KVL
LIST OF EQUIPMENT:
Power supply
Digital multimeter
Resistors
Bread board
7387 Indicator bulb
BA
Amplifiers
(section 2.4)
Takes a small signal
and increases it so that
it can be measured
(or heard)
Active device (needs power)
Out In * Gain
Amplifier
Amplifiers
V1
V2
A
Vo
+
A  Gain
VO A(V2 V1 )
Difficult to manufacture
amplifiers within tolerance
Intro to Nodal Analysis
Need a reference node
Often ground, doesnt have to be
For convenience, often bottom node, doesnt have to be
Label other nodes with potential relative to reference
node
VA
R1 1
+

Vs 10V
R3 2
VB
+
VA

VC
Is 2 A
R2 5
R4 10
Noda
Current Definition (Conventional)
VR
+
R
I
VR IR

Parameter Definition for DC circuit
Parameter
Symbols
Unit
Ohms ()
Resistance
DC voltage source
DC current source
+

+

Volts (V)
Amps (A)
Conventional Current (+ charge carriers).
Conveyor belt adds
ENGS 295 INTRODUCTION TO CIRCUIT ANALYSIS
DEPARTMENT OF ENGINEERING, HOPE COLLEGE
DESCRIPTION:
Introduction to analysis and design of DC resistor networks and
amplifiers.
OBJECTIVES:
Analyze and design DC analog circuits
Analyze and design simple analog c
Introduction to
Circuit Analysis
Electrical Engineering
Field
Activity Example
Aerospace and
Aeronautics
Develop new sensors, control systems and power supplies for the next generation
of space vehicles
Communications
Develop new networks that allow insta