electrical circuits.

Design Challenge Report
Format
The report length should be between 3000 and 4000 words. This corresponds to
approximately 15 pages in the appropriate format, depending on the number of
figures. Large tables of data or other ancillary material should be
included in
appendices and do not contribute to the word count.
The text of the report is to be written in a 12pt Times font using a single column
format with 1.5 line spacing. Section and subsection headings should use variants of
the Times font and be n
umbered. Use white A4 paper with 25 mm margins all round.
Every page is to be numbered. The report should be in third person.
Style
The report should be written so that a student who has completed 2
nd
year electrical
engineering (not necessarily at the Un
iversity of Queensland) can understand the
report. The report should follow a technical report style as outlined in:
https://learn.uq.edu.au/webapps/blackboard/execute/content/file?cmd=view&content_id=_890959_1&course_id=_22747_1
Content
The report should contain the following. Note that these are NOT recommended
section headings, but guides to show you the content exp
ected in the report:
Title:
Name your report, and give the authors’ names. Centre the title block at the top
of the first page.
Abstract:
The abstract is a 300
–
400 word summary that highlights the key
outcomes to be found in the report. It is a stand
–
a
lone section that might be published
separately to the rest of the report to allow potential readers to see whether they wish
to read the full report.
Introduction:
Briefly describe the problem that you are trying to solve, the approach
that you have take
n, and how your work will be described in this report. This section
sets the scene so that the reader understands what you are talking about in the
subsequent sections.
Background:
Describe the theory relevant to solving your problem, using references
to
texts or other material where appropriate.
Solution:
This is the key part of the report that will describe what you did. The order
or emphasis of these sections may vary depending on how you went about your work.
A typical report might have some method
and results for some initial experiments,
followed by some design work, followed by further experimental method and results
to evaluate the design.
Experimental Method:
Describe the procedure that you used for any
experimental work. There may be more than
one method section if you have
performed multiple experiments. The description should be complete enough
so that another student could repeat the experiment again.
Experimental Results:
Describe the results of any experiments that you
performed. These res
ults should be paired with the description of the method.
The results should include the results that best illustrate the outcome of the
experiment. Large tables of raw data are best placed in an appendix.
Design:
Describe your design goals, your design m
ethod and your design
outcomes. Carefully justify your design decisions. Your design should be
evaluated by experimentation.
Discussion:
Explain the significance of your findings. Some typical things you might
discuss include:
Did the experimental results
match the background theory?
How effective was your design?
Are there any limitations in the design?
What improvements could be made to the experimental procedure?
What improvements could be made to the design?
Conclusion:
The conclusion should remind th
e reader of all the important parts of the
report. It should not introduce any new material into the report.
Acknowledgements:
If there is anyone you would like to thank, add it after the
conclusion.
References:
Provide a list of numbered references you
have cited in your report. See
the technical writing document linked above for details on referencing style.
Appendices:
Put any detailed material not appropriate to the body of the report into
appendices.

Prac 3
Design Challenge
Gordon Wyeth
1
University of Queensland
Prac 3
–
Design Challenge
6
hours
working in pairs. You
will
be asked to
submit a report on this work. You need
only submit one report co
–
authored by you and your prac partner.
Problem
You will be given a black box with three connection points as shown
in Figure 1
below. The three points are the input (red), the output (black) and a common ground
(green). The black box contains a “random” passive circuit with resistors, capacitors
and/or inductors. Each group will receive a different black box with a d
ifferent circuit
and/or components.
You are required to design a circuit that reverses the effects of the black box. With
your
circuit connected to the black box,
the
signal into
the input of the black box
should appear at the output of
your circuit
. You
may assume that the
input
sig
nals
to
the black box
will be bounded by +/
–
10V, and will be in the frequency range DC
–
20
kHz
, as generated by a function generator in the lab
.
You may also assume that the
output
of your circuit
will only be loaded with a h
igh impedance load such as an
oscilloscope.
You are expected to wire up your circuit on a breadboard in the laboratory. Your
circuit will
not
be retained from week to week, so you should carefully record your
work so that you
can re
–
build it quickly. You may use any components in the lab for
your pre
–
emphasis circuit.
There are
a range of resistors and capacitors,
the 741 op
–
amp and variable resistor used in Prac 1 and
the inductor used in
Prac 2. You may use
more than one 741
if you need.
You may power your pre
–
emphasis circuit using the
laboratory power supplies.
Your design will be assessed on its effectiveness as evidenced by the results in your
report, and on the elegance and simplicity of your design. Note that all resul
ts will be
checked for authenticity.
Black Box
Your Circuit
Red
Black
Input
Output
Green

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