Industrial and Power Electronics Laboratory

ECE166A/267A Lab

Course Instructor: Professor Keyue Smedley

Lab Teaching Assistant: Marco Tedde and Arash Khoshkbar

Winter 2012

Room: EH 1121, 1131, 1141

Introduction This is the general introduction to the ECE 166A/267A lab. It contains information regarding the administration of the lab, the lab report format and the lab schedule. There are seven lab sessions altogether. Lab 1 and Lab 2 will be the computer simulation of Buck Converter and Boost Converter. Lab 3, Lab 4, Lab 5, Lab 6 and Lab 7 will bethe main focus of the ECE 166A/267A Lab: you will design and construct your own Boost Converter. This project will last four lab sessions and you will need to achieve themilestones in each lab session. Two or three students will form one group. Each group member will have the same grade assuming they contribute equally to the work. Group members should distribute the work and exhibit team work spirit.

1. Lab rules:

Safety first! All panels in the lab are always energized and the available high voltage utility outlets present a real danger to people and equipment.

• Check the connection before switching on the power. • Switch off the power before changing components and connections • Be careful of the polarity of the Electrolytic capacitors and other components • Use appropriately sized conductors for the expected currents. • Watch your partner - everybody is a safety officer • Eye protection must be worn when using the PCB milling machine • No food and drinks are allowed in the lab at any time • Clean your work space and return all equipment, hook-up wires and tools to their

original locations before leaving the lab • Never leave any power supplies, scopes, meters or soldering irons on

You are expected to observe the lab rules, be punctual and adhere to the lab schedules. Absence from a lab session will lead to a zero toward your grade for that lab session. Lab reports should be turned in on time.

2. Parts : The parts needed for the Boost Converter design project will be provided in the lab kit which can be purchased from us. We will supply additional parts as needed, if the parts are available in the lab.

3. Pre-lab Requirement Pre-labs are required for some of the labs. Each group should submit a pre-lab report at the beginning of each lab required. The pre-lab assignment will consist of the work that needs to be prepared in order to perform the experiment. Circuit diagrams, equations, simulation block diagrams and necessary calculations should all be done before the lab sessions and should be included in the pre- lab report. It will be graded by the lab TA as 30% of each lab report. 4. Lab Report Lab reports are required for all the labs. Each group should turn in the lab report at thebeginning of the next lab session. We require the lab reports for the first, second, third lab session and final report for your boost converter design and testing for the followinglab sessions. All reports should be formal and written as a technical report: technically correct, complete and concise. While completeness is important, it is not necessary to fatten up the report with superfluous writing. You should not spend extra time repeating the lab procedures, describing the equipment and so on. Please also be honest with the experimental results: get the data from your own simulation or circuit board. General Lab Report Format: 4.1) Title Page The title page should contain the lab session number, title, date, student names and ID numbers. Both group members should sign the lab report on the title page. 4.2) Introduction Explain the objective of the experiment, the problems being investigated and the method of the investigation. 4.3) Body The body part should contain the calculated and experimental results, graphs, tables, plots, measured waveforms. All analysis of the data should be done in this part. 4.4) Discussion and conclusion Discuss the problems encountered and solutions here. You can also include your valuable thoughts here. Write a short conclusion to summarize the lab reports.

5. Lab Schedules:

Week 3. Lab 1: PSPICE simulation of Buck Converter Week 4 Lab 2: PSPICE simulation of Boost ConverterWeek 5. Lab 3: Boost Converter Project: Design (schematics, PWM chip,

and inductor) Week 6. Lab 4: Boost Converter project: build up the converter Week 7. Lab 5: Boost Converter project: open-loop test Week 8. Lab 6: Boost Converter project: closed-loop test Week 9. Lab 7: Boost Converter project: continue the test in lab 5 and 6

Location: Lab 1, Lab 2 at ECT123 Lab 3, Lab 4, Lab5, Lab6 and Lab7 at MSTB220 6. Lab Grading: Breakdown of the lab grade:

• Lab 1, Lab 2, Attendance and lab performance 10 each • Lab 3, Lab 4, Lab 5, Lab 6 and Lab 7: 70