EE122 - Introduction to Electronic Circuit Design

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1 EE122 - Introduction to Electronic Circuit Design Prof. Greg Kovacs with Amy Droitcour and Bob Ricks Department of Electrical Engineering Stanford University

2 About EE122 Curiosity-driven laboratories with a flexible structure. A team-based approach to learning. Practical, rather than theory-driven content. Preparation for laboratories will involve team research and analysis, rather then lengthy write-ups. An informal lab-book-based approach to taking data. No formal examinations (midterms or final), with grading based on laboratory notebooks, teamwork, and final project. Final project with a full three weeks provided for design and construction. Final demos given by each team to the entire class. EE122, Stanford University, Prof. Greg Kovacs 2

3 An introduction to geek culture. EE122, Stanford University, Prof. Greg Kovacs 3

4 EE122 Course Goals Analog circuit design knowledge. Introduction to sensors. Working knowledge of interface electronics (to the real world ). Developing circuit design intuition. Experience with teamwork in experimentation, documentation and design. EE122, Stanford University, Prof. Greg Kovacs 4

5 Basic Things You Have to Handle Know how to use Excel (how to enter data and how to make plots). Know how to use Word (including importing graphics) and how to generate PDF files. Find a form of SPICE that you are comfortable with (B2Spice, PSPICE, HSPICE, or whatever). TA s will help. Get a copy of Horowitz and Hill, The Art of Electronics. EE122, Stanford University, Prof. Greg Kovacs 5

6 Your Professor in 1961 Gotta hack circuits! EE122, Stanford University, Prof. Greg Kovacs 6

Sandy Plewa (CISX-203) 723-0720, splewa@leland

7 Sandy Plewa (CISX-203) , EE122, Stanford University, Prof. Greg Kovacs 7

8 Bob Ricks EE122, Stanford University, Prof. Greg Kovacs 8

9 Amy Droitcour EE122, Stanford University, Prof. Greg Kovacs 9

10 Grading Laboratory notebooks - 20% Formal laboratory write-ups - 30% Final project (team) demonstration/presentation and write-up - 40% TA evaluation of laboratory skills (individual) - 10% EE122, Stanford University, Prof. Greg Kovacs 10

11 THIS IS A PROJECT-BASED CLASS! EE122, Stanford University, Prof. Greg Kovacs 11

12 Spring 00/01 EE122, Stanford University, Prof. Greg Kovacs 12

13 On Clear Communication You are the chief airplane washer at the company hangar and you: (1) Hook high pressure hose up to the soap suds machine. (2) Turn the machine "on". (3) Receive an important call and have to leave to go home. (4) As you depart for home, you yell to Don, your assistant, "Don, turn it off. (5) Assistant Don thinks he hears, "Don't turn it off. He shrugs, and leaves the area right after you. (6) Refer to next slide for the results. As with any occupation make sure everyone has a clear understanding of what you are communicating. This un-doctored picture shows what actually happened. EE122, Stanford University, Prof. Greg Kovacs 13

14 EE122, Stanford University, Prof. Greg Kovacs 14

15 Safety Issues Electricity can kill you. Keep voltages below +/-15 V unless specifically authorized. No line-powered projects please. Use the bench power supplies, wall wart AC adapters, solar cells, or batteries. If any circuits interface to the human body, they must be battery powered and isolated from any instruments, etc. EE122, Stanford University, Prof. Greg Kovacs 15

With POWER OFF, touch something grounded before handling a chip.

16 Electrostatic Discharge Protection Photos Courtesy of Analog Devices. Normal static electricity we carry can severely damage CMOS chips. With POWER OFF, touch something grounded before handling a chip. Once on a board, the chips are pretty safe. EE122, Stanford University, Prof. Greg Kovacs 16

17 LTC1475 Photo Courtesy Linear Technology. EE122, Stanford University, Prof. Greg Kovacs 17

18 Please keep the lab neat! It is your job. EE122, Stanford University, Prof. Greg Kovacs 18

19 EE122, Stanford University, Prof. Greg Kovacs 19

20 NO! EE122, Stanford University, Prof. Greg Kovacs 20

21 Good Books Horowitz and Hill, The Art of Electronics. Application notes and books of them from chip manufacturers like: National Semiconductor Linear Technology Maxim Analog Devices Electronics cookbooks (various) - check Fry s and Jameco. EE122, Stanford University, Prof. Greg Kovacs 21

22 Good Magazines Nuts and Volts ( Wireless World. Popular Electronics. Elektor (way cool Euro mag!) ( EE122, Stanford University, Prof. Greg Kovacs 22

23 Good (New) Parts Sources Digi-Key - Jameco - Fry s (but don t ask for help) - (doesn t list all items in store) Allied - Newark - Radio Shack - Hosfelt (yes, it s real) - Let us know of any others you find - they will be added to this list! EE122, Stanford University, Prof. Greg Kovacs 23

24 Haltek, Mountain View, CA - OUT OF BUSINESS!!!! Halted Specialties, Inc., Santa Clara, CA 3500 Ryder St., Santa Clara, (408) Great selection of parts. Alltronics Parts, some instruments, much junk (catch owner in a good mood). 2300D Zanker Road, San Jose, (408) , Gateway, various cities, (800) Cool surplus parts. Davylin Corp., North Hollywood, CA Test instruments, weird military stuff. Resources Unlimited, Manchester, NH can be hard to deal with, but have large selection of optics, lasers, and weird stuff. (800) All Electronics, Van Nuys, CA Foothill and Livermore Swap Meets Livermore 1st Sunday of every month all year Foothill 2nd Saturday of every month summer/fall only Good Surplus Sources EE122, Stanford University, Prof. Greg Kovacs 24

Marlin P. Jones & Assoc., Inc. P.O. Box 12685, Lake Park, FL 33403-0685 (800) 652-6733 www.mpja.com Lots of cool video stuff, kits and parts.

25 Marlin P. Jones & Assoc., Inc. P.O. Box 12685, Lake Park, FL (800) Lots of cool video stuff, kits and parts. More Surplus Sources American Science and Surplus Weird assortment... EE122, Stanford University, Prof. Greg Kovacs 25

26 Schedule Week of 9/29 - Instrumentation: Physical and Virtual (SPICE) First class is: Monday 9/29 Notes: Lab assignments, course organization will be discussed. Kovacs, Gilchrist, Ricks, and TAs will introduce themselves in class and schedule laboratory times. Students should purchase textbooks and laboratory books. Lecture Topics: Review of basic instruments (physical and virtual). Review of electronic components. Introduction to the design process. Week of 10/6 - Basic Op-Amp Concepts Students will learn how to operate the electronic instruments in the laboratory and familiarize themselves with the necessary software, as required. Lecture Topics: Power sources such as basic power supply circuits, batteries, etc. Operational amplifier circuits (inverting and non-inverting amplifiers, summers, etc.). Limitations and strengths of integrated circuit opertional amplifiers. EE122, Stanford University, Prof. Greg Kovacs 26

27 Schedule Week of 10/13 - Frequency Concepts and Nonlinear Circuits Students will experiment with simple operational amplifier circuits and get a feel for what these chips can and cannot do. Lecture Topics: Analog filter circuits. Nonlinear operational amplifier circuits. Simple oscillators. Week of 10/20 - Interface Circuits Students will learn to use filters, nonlinear circuits with op-amps, and how to generate a basic set of useful signals. Fooling around with the circuits will be encouraged. Lecture Topics: Interface circuits to motors, relays, lamps, etc., using discrete transistors (bipolar and MOSFET). Digital-to-analog and analog-to-digital concepts. Basic sensor concepts - how circuits see, feel, hear, etc. Project proposals due in class on Monday, 10/27. Approved project proposals will be returned to teams in class on Wednesday, 10/29. Turning in proposals early is highly encouraged! EE122, Stanford University, Prof. Greg Kovacs 27

28 Schedule Week of 10/27 - Optoelectronics Students will use simple circuits to interface to a variety of real-world devices. Lecture Topics: LED s, lasers, phototransistors, and other interesting optoelectronic devices. Simple circuits to move information with light. Week of 11/3 -Additional Circuit Concepts, Final Project Construction - Droitcour Students will gain hands-on experience with optoelectronic components and demonstrate an optical signal transmitter and receiver. Lecture Topics: A variety of useful circuit building blocks. Week of 11/10 - Additional Circuit Concepts, Final Project Construction - Droitcour Students will be exposed to a variety of interesting circuit concepts that might come in handy when working on the details of their projects. Lecture Topics: More interesting circuit tricks. Brief student project presentations in class. EE122, Stanford University, Prof. Greg Kovacs 28

29 Schedule Week of 11/17 - Final Project Construction - Droitcour Students should begin construction of projects, obtain any special components, and team member responsibilities should be clarified and assigned. Lecture Topics: How to build prototype circuits. How to debug analog circuits. Brief student project presentations in class. Week of 11/24 - Final Project Construction Students should be finishing project fabrication and testing. Lecture Topics: Student question-and-answer to help with project-related problems. More interesting circuits. EE122, Stanford University, Prof. Greg Kovacs 29

30 Schedule Week of 11/25 - Dead Week - Demonstrations, Write-Ups Due Students should be finishing project fabrication and testing. NO LECTURES The final project demonstrations are scheduled for Wednesday, 12/3, and the final reports are due Friday, 12/5 by 5 pm (please turn them in to Ms. Sandy Plewa). Demo day is not flexible. All students must attend. Please block this date on your calendar right now. Please. EE122, Stanford University, Prof. Greg Kovacs 30

31 Analog in the Great Outdoors. Projects for sports and exploration are welcomed! EE122, Stanford University, Prof. Greg Kovacs 31

32 EE122, Stanford University, Prof. Greg Kovacs 32

33 EE122, Stanford University, Prof. Greg Kovacs 33

34 EE122, Stanford University, Prof. Greg Kovacs 34

35 Some Interesting Project Ideas Op-amp tester. Magnetic field probe. Ultrasonic translator. Eyeblink sensor - sleepiness monitor. Differencing dual sensor. Acoustic ranging system. Amplified stethoscope. LED oscilloscope. Electronic sculpture. EE122, Stanford University, Prof. Greg Kovacs 35

36 Some Interesting Project Ideas Function generator. Precision power supply. Voice spectrum shifter. Cheapo network analyzer. Optical voice communicator. Peltier heater/cooler. Earthquake detector (with simple multi-band spectrum analyzer). Infrared intrusion alarm. Bi-amplified audio system. EE122, Stanford University, Prof. Greg Kovacs 36

37 Challenge Project Ideas Best use of Polar heart monitor technology (need to build a 5 khz magnetically coupled receiver). Best health related device. Best gadget for outdoor use (mountaneering, skiing, scuba diving, etc.). Best athletic training gadget. Electronic art - something interactive and cool. EE122, Stanford University, Prof. Greg Kovacs 37

38 Booty Beware EE122, Stanford University, Prof. Greg Kovacs 38

39 EE122, Stanford University, Prof. Greg Kovacs 39

40 Beer Cooler EE122, Stanford University, Prof. Greg Kovacs 40

41 EE122, Stanford University, Prof. Greg Kovacs 41

42 EE122, Stanford University, Prof. Greg Kovacs 42

43 Ultrasonic Distance Gauge EE122, Stanford University, Prof. Greg Kovacs 43

44 Disco Mixer EE122, Stanford University, Prof. Greg Kovacs 44

45 Dissin Parrot EE122, Stanford University, Prof. Greg Kovacs 45

46 Line Following Robot Car EE122, Stanford University, Prof. Greg Kovacs 46

Example of How To Build Projects The Tweak-O guitar effects box article by Steve Daniels (http://home.netcom.

47 Example of How To Build Projects The Tweak-O guitar effects box article by Steve Daniels ( smallbearelec) is a great example of how to build, package and decorate a project. The circuit itself, however, is a bit too simplistic for EE122. PDF of article courtesy of Steve Daniels. EE122, Stanford University, Prof. Greg Kovacs 47

48 Gotta hack circuits! EE122, Stanford University, Prof. Greg Kovacs 48

GOLFER. The Golf Putting Robot

GOLFER. The Golf Putting Robot GOLFER The Golf Putting Robot Written By Wing Pan Yuen For EEL 5666 Intelligent Machines Design Laboratory December 05, 1999 Table of Contents Abstract Introduction Executive Summary Integrated System