Download EE101-Lect1-Introduction-to-electronic-circuits-3

EE101 Introduction to Electronic Circuits
Fall Quarter 2012
Professor Sung Mo (Steve) Kang
Office: BE-235; Phone (831) 459-3580; email: [email protected]
Office Hours:
• Monday 2-3 p.m.
• Tuesday 4-5 p.m.
• Friday 5-6 p.m.
Teaching Assistants
 Jose Armando Oviedo ([email protected])
 Matthew Kissel ([email protected])
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EE101 Syllabus
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Basics of electronic and electric circuits.
Basic circuit elements (R, L, C, M(Memristor)), their constitutive relations (voltagecurrent relations for R, L, C), namely circuit models.
DC Analysis of circuits consisting of R, L, C. (First for DC- Resistor Circuits for voltage
and current sources, and later by including L and C.)
Equivalent circuits- Thevenin’s, Norton’s, Transformations for easier analysis;
Superposition principle for Linear Circuits and its application.
Operational Amplifiers (Op Amp) and their applications for summing, difference,
Digital-to-Analog converter.
Transient circuit analysis of RC, RL circuits using first-order differential equation.
Transient circuit analysis of RLC circuits using second-order differential equation.
AC Analysis of RLC circuits for sinusoidal signals; Frequency response, Filter analysis,
Bode plot.
Magnetically coupled circuits, transformers.
Analysis of power systems, 3-phase circuits.
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EE101 Grading
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Quizzes
15%
Midterms 15% each x 2= 30% (Oct. 19 and Nov. 9, 2012)
HW
15%
Final
40%
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Students are required to take the exams on the given dates.
Final exam dates will be announced as soon as it is known.
Late HW submissions will not be accepted.
Quizzes will not be repeated- so, please do not miss the
quizzes.
 HW is due at the beginning of the class on the due date.
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EE101 Details
• Course Number: 20849
• Course Web site:
https://courses.soe.ucsc.edu/courses/ee101/Fall12/01
– Students need User Name and Password
– Lecture slides and HW assignments will be posted
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Classroom: Physical Sciences 110
Class Time: MWF 3:30-4:40 p.m.
Must enroll concurrently in EE101L
Prerequisites:
Physics 5C/N or 6C/N
Applied Math and Stats 20 or 20A or Math 24
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Related Courses Before and After EE101
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EE101 Textbook
and Supplementary Book
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Required Textbook: UCSC version of Fundamentals of Electric Circuits (reduced
price) by C. K. Alexander and M. N. O., Sadiku, McGraw Hill, 5th ed. available at
UCSC bookstore.
If you buy this edition from somewhere else such as Amazon.com, be aware that
Chapters 15, 16, 18, 19 are omitted in the UCSC version. And also you will need to
pay some additional fee for electronic access to HW assignments, feedback and
automated grading
Supplementary Book
– Schaum’s Outline of Basic Circuit Analysis by John O’Malley, McGraw Hill
(ISBN: 0070478244) contains many solved problems.
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EE101 Grading Policy
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Quizzes
HW
Two Midterms at 15% each
Final
15%
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30% (Oct. 19 & Nov. 9)
40%
 Please submit HW on time (at the beginning of the class on the due date)- no
late submission will be accepted. (It is all computer-controlled.)
 Please take all exams on the posted dates and time. No exception unless
preapproved before the beginning of the quarter.
 Quizzes will cover the topics of the previous lectures and reading assignments.
 The pre-requisite quiz is to test your preparation. (matrix determinants,
ordinary differential equations, electricity and magnetism, complex numbers.)
 For exams, calculators must be cleared of contents relevant to EE101
materials.
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Study Guidelines
 Be motivated and generate enthusiasm and put good efforta key to success not only for this course but many others.
 Read assignments before each class.
 Work out each example during your reading.
 Please turn off your mobile phones in the classroom.
 Use the office hours of both professor and TAs and tutor for Q&A.
 Please do the HW by yourself, otherwise you may not do well for the inclassroom quizzes, and also may fail the exams.
 Review the graded HW, exams and correct the mistakes.
 Also, you must pass the final exam in order to pass the course. Otherwise,
you may fail the course, regardless of your other achievements.
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Honesty is the Best Policy
 Please read the campus policy on academic integrity.
 Integrity is one of the key personal traits that are counted critically not
only in schools, but also in job and society.
 Any confirmed academic dishonesty will results in a no-pass or failing
grade and automatic referral of the case of the suspected policy violation
to your college for further disciplinary action.
 Example of Cheating includes (but are not limited to):
 Sharing results or other information during exam.
 Violation of the official examination time window.
 Submission of HW which is not your own work.
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EE101Lab
Lab. Exercises will cover
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Understanding of Lab. Safety and Instruments
Resistive circuits
Equivalent circuits, load matching
Transients in electric circuits
AC circuits and filter design
OP Amp circuit design
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Some Basics
• Fundamental Units
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Voltage (V, Volt)
Current (I, Ampere)
Charge (Q, Coulomb)
Magnetic Flux (Φ, Weber (Wb))
Power (P, Watt)
Energy (E, Joule)
V=dΦ/dt
I= dQ/dt
P=V.I
P= dE/dt
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Circuit Elements
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Resistor (R, Ohm)
Inductor (L, Henry)
Capacitor (C, Farad)
Conductor (zero resistance wire)
Independent Voltage Source (Volt)
Independent Current Source (Ampere)
Dependent Voltage Source (VCVS, CCVS)
Dependent Current Source (VCCS, CCCS)
Transformer
Active Elements (Transistors such as MOST, BJT)
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Introduction of Electric Circuits
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Consider a headlight system
in a car
It is turned on by a switch
manually or automatically
The headlights get turned on
by heating filaments
(resistors), although there
are non-filament headlights.
The current though the
filament is I= V/R
The power dissipated in the
filament resistor is
P=V.I= V.V/R
Advancement in automotive
electronics will make car
components smaller and more
efficient.
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Analogy of Electric Circuit to Fluid Pump System
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Mechanical
Electrical
Reservoir
Pump
Pump Pressure
Narrow Valve
Fluid Flow
Ground
Battery
Voltage (V)
Resistor(R)
Current (I)
Poiseuille’s
Law
Ohm’s Law
Resistance (R) of a Resistor is proportional to the length, but inversely proportional
to the cross-sectional area, i.e. R= (Material’s Resistivity Constant) x Length/Area
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Electrical Model of Axon Membrane
(Hodgkin-Huxley Model of Squid Membrane)
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In this model, GNa and Gk are “memristors”,
resistors with memory
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Passive Elements of Electric Circuits
(R, L, C, M) and their Constitutive Relations
V, I, Q , Φ are the 4 key variables in
electrical engineering.
RLCM elements are characterized by:
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V = R I (Resistor)
Q = C V (Capacitor)
Φ = L I (Inductor)
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Φ = f (Q) (Memristor = memory
resistor) For example, the Resistive
Memory (ReRAM) cell.
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Electrical Current (I)
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An Example of Electric Circuits (consisting of R,
L, C and a Voltage Source) and Currents
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Types of Circuit Analysis
• DC, AC
• Transient (by d.e.), Steady State (by phasor)
• Frequency response (steady state, AC)
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Reference Direction
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Vab = Va-Vb
= -(Vb-Va)= -Vba
Iab = Vab/R = -Vba/R
= -iba
Voltage across an
element is the
difference between the
two node voltages.
The current through an element
can be found by Ohm’s Law,
namely by diving the voltage
across the element by resistance
(or impedance).
5 miles East = - 5 miles West
W
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