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ELECTENG 734 - Power Electronics
Design Report Assessment Instructions
Deliverables
The following is taken directly from the Project Specifications Document available on Canvas:
A team report, worth 20%, detailing the preliminary design, must be submitted strictly adhering to the
report templates. The templates are provided to guide you through the design of your pick-up regulator
and the DC-DC converter. You are expected to work on the report as a team, but must share the work
evenly. Both team members must fully understand all aspects of the design as well as the design
decisions/compromises that you have made. Your design report must include,
I. A cover page with a declaration of originality
II. Completed Excel design calculation sheets for both the pick-up regulator and the DC-DC
converter
III. Formula sheets showing all equations (referenced to equation numbers indicated in the
Excel sheets) used for pick-up regulator and the DC-DC converter design calculations
IV. Detailed Altium schematic diagrams of your proposed pick-up regulator and DC-DC
converter (including over voltage protection circuit) designs indicating appropriate
component values and part numbers
You must combine the above documents into a single PDF file and electronically submit it via Canvas.
The technical accuracy of your design calculations and the viability of the proposed solutions will be
assessed to allocate your report marks.
Overview
The objective of this design report is assist you in the design of your DC-DC converter, IPT pick-up
regulator, and demonstrate your understanding of the design equations derived from the lecture
material.
There are 3 main documents for both the DC-DC converter and the IPT pick-up regulator, and a
component list provided to you for this assessment:
DC-DC Converter
1. The design Excel spreadsheet "EE734_Buck_Design_Template_22_UPI.xlsx"
2. The design equation Word doc "EE734_Buck_Equations_Template_22_UPI.docx"
3. The example design Excel spreadsheet in PDF format "EE734_Buck_Design_Example_22"
IPT Pick-up Regulator
1. The design Excel spreadsheet "EE734_IPT_Design_Report_22_UPI.xlsx"
2. The design equation Word doc "EE734_IPT_Equation_Template_22_UPI.docx"
3. The example design Excel spreadsheet in PDF format "EE734_IPT_Design_Example_22"
General Design Documents
1. An Excel spreadsheet which lists the Power MOSFETs and Power Diodes available for use in
your design report “Component List 2022.xlsx”
All submitted documents should have both team members UPI at the end of each file name.
EE734_DRI_Rev1.1 Page 2 of 4 04/04/2022
General Instructions for Design Spreadsheets and Equation Word Docs
You are expected to work through the design spreadsheets for both the DC-DC converter and IPT
pickup and fill in the blank cells in each sub-sheet to complete the design. For example, Fig. 1 below
shows the first sheet of the design Excel spreadsheet for the DC-DC converter and a blank cell with an
equation number (1) next to it. You are expected to derive and enter an equation here that uses the
provided specifications and load conditions to work out the output power of the buck converter when
RL = 2 ohms. Eq (1) should then be entered into the Word doc "EE734_Buck_Equations_Template_-
22_UPI.docx" using the equation editor function.
You are also provided with a completed design spreadsheet in a PDF format "EE734_Buck_Design_-
Example_22" which uses the same design process and equations you are expected to derive, but uses
different specifications so the end values are different. It is highly recommended you create a copy of
your design spreadsheet, edit the specifications to match those in the example PDF, and check your
values match. If they don’t match, it is likely you have made a mistake in your design equation.
Note that as you move past the “Operating Conditions” sheet there are some blank cells you are expected
to fill out with values obtained by completing previous sheets, such as the maximum peak inductor
current, or the inductor rms current and current ripple for each of the loads. See Fig. 2 below. Also note
there are blank cells you are expected to fill in with appropriate values obtained from datasheets. An
example is shown below in Fig. 3.
Fig. 1. Sheet 1 of buck converter Excel spreadsheet showing blank cells requiring equations to be entered.
EE734_DRI_Rev1.1 Page 3 of 4 04/04/2022
Fig. 2. Sheet 2 of buck converter Excel spreadsheet showing blank cells requiring results from previous
equations to be entered.
Fig. 3. Sheet 4 of buck converter Excel spreadsheet showing blank cells requiring component
characteristics to be entered
EE734_DRI_Rev1.1 Page 4 of 4 04/04/2022
General Instructions for Altium Schematic
As stated in the deliverables for this assessment, a detailed Altium schematic diagram of your proposed
pick-up regulator and DC-DC converter (including over voltage protection circuit) designs indicating
appropriate component values and part numbers must be submitted.
The files needed for the Altium schematic are found in a zip file labelled:” Student Versions 2022.zip”
1. A PCB project for the buck converter can be found in the folder buck_2009
2. A PCB project for the IPT pick-up controller can be found in the folder regulator pcb_2009
3. The ECE pcb library is also included.
Fill in all values that your converter and controller need to function properly. Include details on the
component such as diodes, MOSFETs, and capacitors where appropriate.
Do not modify the PCB layout. Any additional circuitry that desired will be implemented on Veroboard.
In the final submission, only the updated schematic files should be included
Frequently Asked Questions
1. Can I modify the values in the cells with a grey background?
a. No, these are pre-set to project specifications or values suitable for assessment
purposes.
2. Can I use any components I want? I found this really nice MOSFET or diode I would like to
use?
a. No, for this assessment you may only choose components from the spreadsheet
“Component List 2022.xlsx” which is available on Canvas. In your final design you
may use a component not on this list subject to staff approval.
3. Do I need to show working for each of the three MOSFET or diode types available in my final
report submission?
a. No, only submit with the MOSFET or diode sheet filled out with the device you think
best suits your design. However, we highly recommend you duplicate the MOSFET
and diode sheet so there is a worked copy for each of the three device models available.
This way you may compare between the devices and make an informed decision about
which you might like to use in your final design. Either delete or hide the sheets that
you don’t want to use.
4. Any final tips?
a. Make sure you have gone through the checklist of deliverables for this assessment and
have everything together. All submitted documents should have both team members
UPI at the end of each filename.