Transcript Details of Project (Lesson Plans) - Engineering Academic & Student

Assignment IV
E3 Symposium
The Implementation of Research Assignment
Ping-Hsiu Lee
Reagan High School, Houston I. S. D.
Deborah Barnett
Tidehaven High School, Tidehaven I. S. D.
Faculty Mentor: Dr. Peng Li, Assistant Professor
Department of Electrical and Computer Engineering
What was my Research Question?
E3 Symposium
The Implementation of Research Assignment
Overview:
The E3 program provides an opportunity for educators to gain
firsthand research experience in college of engineering at the
Texas A&M University.
The part of research experience will be implemented as an
enrichment project in math curriculum at Reagan High
School.
E3 Symposium
The Implementation of Research Assignment
Purpose of Project:
1. Provide an opportunity for students to explore and discover the field of
electrical and computer engineering.
2. Allow students making connections with math and science and understand
how the subjects can be applied in engineering field.
3. Nurture and foster students’ algebraic reasoning and analytical skills to
improve the academic performance.
4. Use simulation software and hands-on activities to promote real life
engineering learning experience.
E3 Symposium
The Implementation of Research Assignment
Objectives:
Have basic understanding on CMOS Circuits.
Use CMOS Circuits to design a circuit system which has
basic logic functionalities.
E3 Symposium
The Implementation of Research Assignment
More Objectives:
Analyze the circuit functionality and performance through
hand (graphical) analysis.
Verify the circuit through PSPICE simulation.
E3 Symposium
The Implementation of Research Assignment
Target Students and Proposed Timeframe of Project:
The project will be implemented in four PAP Algebra II classes.
Students are usually either tenth or eleventh graders. The project will
take about 2 to 4 weeks to complete. Since there are 8 computers
available, students will be divided in to 8 groups. There are 2 or 3
students in each group. They are about 100 students will participate
this project.
E3 Symposium
The Implementation of Research Assignment
Educational Standards (TEKS)
Algebra I
(9) Quadratic and other nonlinear functions. The student understands that the
graphs of quadratic functions are affected by the parameters of the function and
can interpret and describe the effects of changes in the parameters of quadratic
functions.
Algebra II
(6) Quadratic and square root functions. The student understands that quadratic
functions can be represented in different ways and translates among their various
representations.
E3 Symposium
The Implementation of Research Assignment
Details of Project (Lesson Plans):
Unit 1: Background and Principle of Integrated Circuits
Length of time: 30 minutes
Objectives:
Students will be able to know the history and background about the invention
of semiconductors.
Students will be able to gain some basic understanding on CMOS Circuits.
Assessments:
Students need to draw the diagram of nMOS and pMOS and briefly describe
how the two types of integrated circuits work.
E3 Symposium
The Implementation of Research Assignment
E3 Symposium
The Implementation of Research Assignment
Details of Project (Lesson Plans):
Unit 2: Conversion between Binary and Decimal System
Length of time: 60 minutes
Objectives:
Students will be able to covert a number between base-2 system
(binary) and base-10 system (decimal).
Assessments:
Students needs to complete the worksheet and online tutorial for the
binary and decimal system.
E3 Symposium
The Implementation of Research Assignment
Details of Project (Lesson Plans):
Unit 3: Familiarize PSPICE Software for Circuit Design
Length of time: 270 minutes
Objectives:
Students will understand the working principle of basic nMos and pMos circuits.
Students will be able to use PSPICE to complete basic circuit design.
Assessments:
Students needs to create 2 completed nMOS and pMOS simple circuits in
PSPICE Schematic.
E3 Symposium
The Implementation of Research Assignment
a transistor is a semiconductor device commonly used to amplify or
switch electronic signals. A transistor is made of a solid piece of a
semiconductor material, with at least three terminals for connection to
an external circuit. A voltage or current applied to one pair of the
transistor's terminals changes the current flowing through another pair
of terminals.
E3 Symposium
The Implementation of Research Assignment
A capacitor is a passive electronic component consisting of a pair
of conductors separated by a dielectric. When a voltage potential
difference exists between the conductors, an electric field is
present in the dielectric. This field stores energy and produces a
mechanical force between the plates.
E3 Symposium
The Implementation of Research Assignment
A resistor is a two-terminal electronic component that
produces a voltage across its terminals that is proportional to
the electric current through it in accordance with Ohm's law:
V = IR
(Europe)
(US)
E3 Symposium
The Implementation of Research Assignment
The ampere (symbol: A) is the unit of electric current. The ampere, in
practice often shortened to amp
E3 Symposium
The Implementation of Research Assignment
Voltage is commonly used as a short name for
electrical potential difference.
E3 Symposium
The Implementation of Research Assignment
Details of Project (Lesson Plans):
Unit 4: Use PSPICE to Simulate, Analyze and Verify the Outcome of Students’
Design
Length of time: 240minutes
Objectives:
Students will be able to use PSPICE to simulate, analyze and verify the I-V
characteristics for a basic circuit of nMOS and pMOS.
Assessments:
After students complete the PSPICE simulations, they need to have written reports
on the I-V characteristics for a basic circuit of nMOS and pMOS.
E3 Symposium
The Implementation of Research Assignment
If Vgd < Vt, channel pinches off near drain.
When Vds > Vdsat = Vgs – Vt , the drain voltage no longer increases
current.
nMOS I-V characteristics can be described as
Vg
+
Vgs
Vs
-
+
Vgd
Vds +
Vd


0


V
I ds    Vgs  Vt  ds
2


2


Vgs  Vt 


2
Vgs  Vt
V V  V
 ds
ds
dsat

Vds  Vdsat
cutoff
linear
saturation
E3 Symposium
The Implementation of Research Assignment
PSpice is a SPICE (Simulation Program for
Integrated Circuits Emphasis) analog circuit
and digital logic simulation software that runs
on personal computers
E3 Symposium
The Implementation of Research Assignment
Did you get all the
answers for your
test?
E3 Symposium
The Implementation of Research Assignment
Show and Tell
about What I did
Acknowledgement
Special Thanks :
•
•
•
•
•
Dr. Peng Li
Albert Zeng, PhD student
The staff of E3 program
National Science Foundation (NSF)
My partner Deborah Barnett