Course Organization

Physics 120/220

Prof. Anyes Taffard

22This Course: P120/P220Instructor: Prof. Anyes Taffardü Office: 3166 Federick Reines HallüOffice Hours: Feel free to email me on gmail to schedule appointment.

Labs: Monday/Wednesday 2:00pm – 5:00pm … Here MSTB-113Course Website: http://sites.uci.edu/electronics/• Your main go to place… check all the links !

Goal of the course:Acquaint you with:• Analog & digital devices (Res, diodes, transistors, Op-Amp, gates, microcontroller)• Designing circuits, PCB• Instruments and procedures for electronics test and measurements.

At the end of this lab, you should be able to:• Design and build simple circuits of your own design• Use commonly used electronics equipment's (handy for research)

33TextbookAuthor: Thomas C. HayesTitle: Learning the art of electronics: A Hands-On Lab CourseNot available at bookstoreGet it online (eg Amazon)

Optional textbook:Author: Paul Horowitz & Winfield HillTitle: The Art of Electronics. 2nd or 3rd EditionsNot available at bookstore

Often considered as “the bibles”

44GradesGrades will be calculated as follows:

ü 50% Lab assignment (8 labs) ü 20% Midtermü 30% Final Project

Lab reports:• One per week, for the 1st 8 weeks.

• Due at the beginning of Monday* lecture of the following week (myEEE dropBox).

• 2 students max working together, handing in one report. Both receive the same grade.

• Each week, you MUST read the corresponding material in your lab manual prior to the lab session. Otherwise, you will be wasting lots of valuable time.• You don’t have to read the whole thing prior to Monday, but at least ½ so you can go through few of the

experiments on Monday and finish Wednesday.

Midterm:Written test covering the material from week 1-4. Takes place on Wed Week 5.

Attendance to all labs is mandatory

*: Beside for weeks where Monday is Holidays. Due Tue 5pm.

55LectureWill use the first hour on Monday and/or Wednesday (as needed) to cover the main topics needed for the week labs.

The lectures will complement the Hands-On Manual. Thus they are not a substitute for the weekly reading assignment.

The lecture slides are posted on the course website.

I intent to keep the lecture part short and to the point so that you have ample time for the experiments.

Getting your hands dirty is the best way to learn electronics!

I will be at the lab to assist you if you have issues.

Note: Monday January 21st and February 18th are UCI holidays.

• The lectures will be covered the week(s) before.

• Lab is opened on Saturday of these weeks and Monday-Friday 7:30am – 9:30pm

66Labs & notebookThe labs are run as weekly mini structured research project. On the course website you’ll find the weekly lab:• What sections to read for that week lab• What lab experiments to do from the Hands-On Manual• What questions to answer in your report (per experiment)• Make sure to answer all of them to get full credits.

You should maintain a personal notebook (bound pages), as any good research scientist does. The notebook is not graded, but it would be critical when it comes to write your report and possibly later in life when you’ll come across electronics.

What you should put in your notebook:• Circuits schematics, labeled ! (even if the circuit is drawn in the student manual, it will help you when wiring it)

• Experiment procedure and its subtleties.

• Record of measurements (unit, scale of apparatus, truth table for digital circuits)

• Summary of observations and conclusions (did you get what you expected)

77Labs & reportsYou’ll work in team of maximum 2 students• Goal: practice team work skills during experiment and for lab report write-ups.

You lab report must be typed. • Electronic submission of 1 PDF file in myEEE Dropbox (plus .ino files in Week 7-8)• You can use Word or Latex to write your report.

• Both .pdf and .doc of the lab questions are provided. • Make sure to label in your report the lab sections and which questions you are answering• Please follow the same numbering as provided in the .pdf/.doc.• See Lan report template provided.

• Strongly recommend to take snapshots of the oscilloscope/breadboard and include those in your report.

• To draw circuit diagrams, see the Links tab on the course website for free software (EasyEDA or others) and how to draw proper diagram.• Even if the diagram is in the Hands-On manual, you must include one in your report

88Lab report content• Section title using the same labeling as the weekly lab instructions.

• Circuit diagrams (This includes redrawing circuit diagrams that are in the lab manual.)

• See “How to draw circuit diagram” on the course website, under Links

• Labeling the elements and their values.

• Setting used for scope/function generators, voltages

• ie sufficient amount of details so that one could reproduce your setup and verify what you did.

• Sketch of additional circuits you used to make a measurement or verify something.

• Output waveform from the oscilloscope.

• Screenshots are great, but make sure to label them: legend, axis, and caption.

• Show both input and output waveforms.

• Make use of the scope measurement or cursor features to show for e.g. Pk-Pk voltage, amplitude, frequency, phase difference etc...

• Measurements taken, explaining how you have performed these measurements and outlining any assumptions or approximation you may have made.

• If appropriate, use tables, labeling columns/rows and giving units to report measurements.

• Sample calculation (using same notation as in your circuit diagrams).

• Your observations/remarks. (Do not write a novel. Bullet points, critical thinking!)ü Always compare with the expectations

• Answers to each question from the lab handouts (to get full credits)A good practice when you go through the experiments is to first workout what is the expected signal output.

99Final ProjectWhen: The last 2.5 weeks of the quarterWhat: Design and test a electronics project of your choice.• Pick something fun that interests you.• But don’t be over-ambitious… you need to be able to complete it within the available time.Due dates:• February 26th: written proposal

• Goal assess level of project adequate (neither to ambitious, neither too easy)• Week 11 Monday: Live demo of your project• March 20th Noon (Final Week): Report and YouTube video of your circuit in action

• Purpose and specifications of your design• Schematic of the circuit• Printed-circuit board (PCB) layout• Measurements and test you performed to characterize your actual circuit’s behavior

Start to think early in the game what you would like to do. Feel free to iterate with me.You can use any of the components available in the lab. You can also order extra ones (but its your responsibility to make sure you have them in time)

1010Access to the lab & PoliciesYou will be able to access the lab outside the lab sessions. Code: XXXXXMonday-Friday 7:30am – 9:30pm. Saturday of holiday makeup

Don’t come to the lab alone! 2 buddy system• Stay Safe !!! – See safety guidelines posted on the course website.

Always turn off all the equipment's and the light before living.

Always leave the lab door locked. Do not temper with the door lock.• We had issues in the past: theft, door locked because of tempering during final project!

1111Access to the lab & Policies

Please use the same bench through the quarter. • Keep it neat & clean at the end of each working day!

Don’t discard stripped wires, but these back in the common trayDon’t keep shared equipment (eg wire stripper, cables etc…) on your bench. • Return them to their location.

Avoid throwing away any of switches, IC, Arduino & interfaces (ie anything that cost $)• However, don’t put back used components in the drawers if you are not sure they are working.

Arduino & components will be available on a check-in/check-out policies. All of these MUST be returned !!!

If these policies are not respected, we will have to revoke access to the lab outside lecture hours, this will significantly impact your lab reports.

12

Lab safety

Physics 120/220

Prof. Anyes Taffard

1414How much electricity does it take to hurt you?100 milliamps (0.1 amps) of current is more than enough to kill you.

Most electrical appliances operate on 120 VAC or 240 VACThe circuit these operate on can range from 15 to 50 amps and they are not design to protect you!Generally, electricity takes the easiest path to ground.One way to protect yourself is to take steps to insulate yourself from groundü Rubber soled shoesü Avoid damp areasü Always power downü Work with one hand

1515General lab safety rules• Never work alone. Always have a buddy with you.

• Always wear safety goggles when:

• Working with capacitor, transistors, FETs. • If a component blow up, it can become a fire hazard and trigger the fire alarm.

• Soldering (you probably won’t need to solder anything this quarter)

• Observed polarity when connecting polarized components

• Always make sure to discharge Caps before tinkering with a circuit.

• Use a voltmeter to make sure a cap is discharged.

• Circuit components may become hot. Watch out for burns.

• Never work on energized equipment with both hands so that not to become part of the circuit.

• Circuits in this lab draw small current… when designed correctly

• Never work on electronics equipment with wet hands

• Always cut wire leads so the clipped wire falls on the table and not towards others