Real Analog  Circuits 1
"Real Analog" is a comprehensive collection of free educational materials that seamlessly blend handson
design projects with
theoretical concepts and circuit analysis techniques. Developed for university "Circuits" classes by
practicing engineers
and experienced educators, Real Analog is centered on a newlywritten 12chapter textbook and features:
 More than 40 video lectures that follow the text, each with downloadable lecture notes
 Exercises designed to reinforce textbook and lecture topics
 Homework assignments for every chapter
 Multiple design projects that reinforce and extend theoretical concepts
 Worksheets and videos to help students complete design projects outside of the lab.
Design projects use Digilent's
Analog
Discovery
and
Analog
Parts Kit
that together include everything needed to
build and test a wide variety of analog circuits  the Analog Discovery includes a dualchannel
oscilloscope, waveform
generator, power supplies, digital I/O channels and more, and the Analog Parts Kit includes a breadboard,
jumper wires,
more than 20 integrated circuits from Analog Devices, and a wide variety of sensors, resistors, capacitors,
discrete
semiconductors, and other components.
Real Analog, the Analog Discovery and Analog Parts Kit form the core of a worldclass engineering
educational program that
can be used by themselves or in support of existing curricular materials. Students with their own design
kits learn more,
learn faster, retain information longer, and have a more enjoyable experience  now every student can take
charge of their
education for less than the cost of a textbook!
Note: To see the previous version of Circuits 1 for the Electronics Explorer, click here.
Chapter 1: Circuit Analysis Fundamentals








Chapter 1 text 

In this chapter, we introduce all fundamental concepts associated with circuit analysis.
Electrical circuits
are constructed in order to direct the flow of electrons to perform a specific task. In
other words, in
circuit analysis and design, we are concerned with transferring electrical energy in order
to accomplish
a desired objective.



Lecture 1 video

Lecture
1 slides 
Course overview, basic circuit parameters, passive sign convention 

Lecture 2 video

Lecture
2 slides 
Power generation & absorption, power sources, resistance 

Lecture 3 video

Lecture
3 slides 
Review, Kirchoff's current law, Kirchoff's voltage law 

Lecture 4 video

Lecture
4 slides 
Circuit analysis examples, series & parallel circuit elements 


Lab 1 video 1 

DMM Usage: Measuring voltage, current, and resistance using a handheld
digital multimeter. Using breadboards to implement circuits


Lab 1 video 2 

Resistors 1: Physical resistors. Nominal resistance values from color
codes. Resistance measurement using ohmeters or measured voltage and current.


Lab 1 video 3 

Dependent Sources: MOSFETs and BJTs as dependent sources.


Lab 1 video 4 

Applications: Concept applications: dusktodawn light and temperature
measurement.


Lab 1.1 
1.1
worksheet 
Solderless Breadboards, Opencircuits and Shortcircuits 

Lab 1.2.1 
1.2.1
worksheet 
Independent Power Supplies, Ammeters, and Voltmeters 

Lab 1.2.2 
1.2.2
worksheet 
Dependent Sources and MOSFETs 

Lab 1.3.1 
1.3.1
worksheet 
Resistors and Ohms Law  Resistance Variations 

Lab 1.3.2 
1.3.2
worksheet 
Resistors and Ohms Law  VoltageCurrent Characteristics 

Lab 1.4.1 
1.4.1
worksheet 
DusktoDawn Light 

Lab 1.4.2 
1.4.2
worksheet 
Resistive Network Power Dissipation 

Lab 1.4.3 
1.4.3
worksheet 
Input Resistance 

Lab 1.4.4 
1.4.4
worksheet 
Temperature Measurement System 


Exercise Solutions 

Chapter 1 exercise solutions 

Homework


Chapter 1 homework problems 

Background 1 

Background material for lab 1.4.4: Resistive Temperature Sensors 
Chapter 7: First Order Circuits








Chapter 7 text 

First order systems are, by definition, systems whose inputoutput relationship is a first
order differential equation.
A first order differential equation contains a first order derivative but no derivative
higher than first order  the
order of a differential equation is the order of the highest order derivative present in the
equation.



Lecture 16b video

Lecture
16b slides 
Inductors, introduction to firstorder circuits, RC circuit natural response


Lecture 17 video

Lecture
17 slides 
RL circuit natural response, general firstorder system natural response,
firstorder circuit examples


Lecture 18 video

Lecture
18 slides 
Forced response of firstorder circuits, active firstorder system examples,
step response of firstorder circuits


Lecture 19 video

Lecture
19 slides 
Steadystate response & DC gain, step response examples 

Lecture 20a video

Lecture
20a slides 
Firstorder circuit step response, introduction to secondorder systems 


Lab 7 video 1 

RC Circuit Natural Response: We create an RC circuit natural response in
two ways: by (1) converting the source to an open circuit and (2) converting the source to a
shortcircuit.


Lab 7 video 2 

RC Circuit Forced Response: The step responses of both passive and active
firstorder RC circuits are measured. Loading effects on the two circuits are examined.


Lab 7.2.1 
7.2.1
worksheet 
Passive RC Circuit Natural Response 

Lab 7.3.1 
7.3.1
worksheet 
Passive RL Circuit Natural Response 

Lab 7.4.1 
7.4.1
worksheet 
Inverting Differentiator 

Lab 7.5.1 
7.5.1
worksheet 
Passive RC Circuit Step Response 

Lab 7.5.2 
7.5.2
worksheet 
Passive RL Circuit Step Response 

Lab 7.5.3 
7.5.3
worksheet 
Active RC Circuit Step Response 


Exercise Solutions 

Chapter 7 exercise solutions 

Homework


Chapter 7 homework problems 
Chapter 8: Second Order Circuits








Chapter 8 text 

Second order systems are, by definition, systems whose inputoutput relationship is a second
order differential
equation. A second order differential equation contains a second order derivative but no
derivative higher than
second order.



Lecture 20b video

Lecture
20b slides 
Firstorder circuit step response, introduction to secondorder systems 

Lecture 21 video

Lecture
21 slides 
Secondorder circuit natural response, sinusoidal signals & complex
exponentials


Lecture 22 video

Lecture
22 slides 
Secondorder system natural response, mathematical form of solutions,
qualitative interpretation


Lecture 23 video

Lecture
23 slides 
Secondorder system step response, governing equation, mathematical expression,
estimating step response, examples



Lab 8 video 1 

Second Order Circuit Step Response: Measuring the step response of a
series RLC circuit. The measured peak value of the response is compared to analytical
expectations.


Lab 8.5.1 
8.5.1
worksheet 
Series RLC Circuit Step Response 

Lab 8.5.2 
8.5.2
worksheet 
Parallel RLC Circuit Response 

Lab 8.5.3 
8.5.3
worksheet 
RLC Circuit Response 


Exercise Solutions 

Chapter 8 exercise solutions 

Homework


Chapter 8 homework problems 
Chapter 9: Introduction to State Variable Models








Chapter 9 text 

In this chapter, we will provide a very brief introduction to the topic of state variable
modeling. The brief
presentation provided here is intended simply to introduce the reader to the basic concepts
of state variable
models, since they are a natural  and relatively painless  extension of the analysis
approach we have used in
Chapters 7 and 8.



Lecture 24 video

Lecture
24 slides 
Introduction to statevariable modeling, simulating system response using
MATLAB® 


Lab 9 video 1 

State Variable Models: The step response of the state variables of a
series RLC circuit are measured. The measurements are compared to the simulated response
obtained by using MATLAB®.


Lab 9.3.1 
9.3.1
worksheet 
State Variable Model of Series RLC Circuits 

Lab 9.3.2 
9.3.2
worksheet 
Second Order Circuit Response 


Exercise Solutions 

Chapter 9 exercise solutions 

Homework


Chapter 9 homework problems 
Chapter 12: SteadyState Sinusoidal Power








Chapter 12 text 

In this chapter we will address the issue of power transmission via sinusoidal (or AC)
signals. This topic is
extremely important, since the vast majority of power transmission in the world is performed
using AC voltages
and currents.



Lecture 31 video

Lecture
31 slides 
Sinusoidal steadystate power, instantaneous & average power, reactive power,
complex power, power factor


Lecture 32 video

Lecture
32 slides 
Review: AC power analysis (average & complex power, power triangles, RMS values,
power factor), power factor correction



Lab 12 video 1 

AC Power & Power Factor: An example of the role of power factor in the
transmission of AC power. Power factor correction is used to improve the efficiency of power
transmission.


Lab 12.4.1 

Apparent Power and Power Factor 


Exercise Solutions 

Chapter 12 exercise solutions 

Homework


Chapter 12 homework problems 