Electronics and Control Systems Unit 4 Revision Portfolio

1. Electronics and Control SystemsUnit 4 Revision Portfolio Student Name

2. Contents • Task 1 – Metals • Task 2 – Polymers • Task 3 – Smart and Modern Materials • Task 4 – Environmental Issues • Task 5 – Electronic Components 1 • Task 6 – Electronic Components 2 • Task 7 – Power Sources • Task 8 – Integrated Circuits 1 • Task 9 – Integrated Circuits 2 • Task 10 – Circuit Design • Task 11 – Circuit Manufacture • Task 12 – Calculations • Task 13 – Anthropometrics and Ergonomics • Task 14 – Signage

3. Task 1 – Metals By the end of this task you should be able to: • Classify a range of commonly used ferrous metals. • Classify a range of commonly used non-ferrous metals. On the next two slides you should: • List three characteristics of the different categories of metal, • For each category of metal, list three specific varieties with their own characteristics.

4. Task 1.1 – Ferrous Metals

5. Task 1.2 – Non-Ferrous Metals

6. Task 2 – Polymers By the end of this task you should be able to: • Classify a range of commonly used thermoplastics. • Classify a range of commonly used thermosetting plastics. On the next two slides you should: • List three characteristics of the different categories of polymer, • For each category of polymer, list three specific varieties with their own characteristics as follows: • Thermoplastics – Three from the following list: ABS, Polystyrene, PVC, Nylon and Acrylic, • Thermosetting plastics – GRP, PCB Substrate and Epoxy Adhesive.

7. Task 2.1 – Thermoplastics

8. Task 2.2 – Thermosetting Plastics

9. Task 3 – Smart and Modern Materials By the end of this task you should be able to: • Define what a smart material is and describe a range of smart materials. • Define nanotechnology and describe its benefits and disadvantages. • Define what is meant by Radio Frequency Identification (RFID) and describe how it is currently used in the world around us. On the next three slides you should: • Create your own definition of what a smart material is by looking at a range of given definitions, and prepare a brief summary of the working qualities of QTC and Memory Metals. • Create your own definition of what nanotechnology means by looking at a range of given definitions, and describe how nanotechnology is currently being used, including in nanowires, nanotubes, transistors and capacitors. • Create your own definition of what RFID is by looking at a range of given definitions and describe how it is currently being used in the world around us and the issues connected with its use, including active and passive devices. Wikipedia Reference: http://en.wikipedia.org/w/index.php?title=Radio-frequency_identification&oldid=310519460

10. Task 3.1 - Smart Materials

11. Task 3.2 - Nanotechnology

12. Task 3.3 – RFID

13. Task 4 – Environmental Issues By the end of this task you should be able to: • Discuss the impact of designs and designers on the environment. • Describe a range of non-renewable and renewable sources of energy and their impact on the environment. • Discuss the implications of material choice on the lifecycle of a product. On the next two slides you should: • Show that you know what ‘The Six Rs’ are and what they mean. • Describe one non-renewable and one renewable source of energy their impact on the environment. • Show that you understand at least one of the following in terms of material use, using examples: • Life Cycle Analysis, • Carbon Footprint.

14. Task 4.1 – The 6Rs

15. Task 4.2 – Energy Sources

16. Task 4.3 – Material Choice

17. Task 5 – Electronic Components 1 By the end of this task you should be able to: • Identify and describe a range of electronic components including: • Resistors, including Potential Dividers, • Transistors, including Darlington Pairs, • Light Dependent Resistors (LDRs), • Light Emitting Diodes (LEDs), • Thermistors, • Diodes. On the next three slides you should: • Present a summary of each type of component including: • What it looks like in real life, • What its circuit symbol is, • What role it plays within a circuit.

18. Task 5.1 – Resistors and Transistors

19. Task 5.2 – LDRs and LEDs

20. Task 5.3 – Thermistors and Diodes

21. Task 6 – Electronic Components 2 By the end of this task you should be able to: • Identify and describe a range of electronic components including: • Relays, • Seven Segment Displays, • Motors, • Solenoids, • Buzzers, • Speakers. On the next three slides you should: • Present a summary of each type of component including: • What it looks like in real life, • What its circuit symbol is, • What role it plays within a circuit.

22. Task 6.1 – Relays and Seven Segment Displays

23. Task 6.2 – Motors and Solenoids

24. Task 6.3 – Buzzers and Speakers

25. Task 7 – Power Sources By the end of this task you should be able to: • Identify a range of different types of battery. • Describe what a capacitor is and how it can be used as a power source. • Describe how solar power can be used to generate electricity. On the next three slides you should: • Show an image of the range of common battery sizes and suggest what they could be used for. • Describe what a capacitor is and suggest how it can be used as a power source. • Describe how a photovoltaic cell works.

26. Task 7.1 – Batteries

27. Task 7.2 – Capacitors

28. Task 7.3 – Solar Power

29. Task 8 – Integrated Circuits 1 By the end of this task you should be able to: • Describe what an Integrated Circuit is. • Define what DIL means. • Define what PIC means. • Understand what binary means and how it is used in electronics. • Understand the range of logic gates available and how they work. On the next three slides you should: • Describe what IC stands for and how the term DIL is relevant. • Describe the benefits and disadvantages of using PIC technology. • Show the range of logic gates that are available and show how the way they work can be described using binary in truth tables.

30. Task 8.1 – ICs and DIL

31. Task 8.2 – PIC Technology

32. Task 8.3 – Binary and Logic

33. Task 9 – Integrated Circuits 2 By the end of this task you should be able to: • Describe how a 555 IC can be used in a timing circuit. • Describe how a 741 IC can be used in a sensing circuit. • Describe how ICs can be used in counting circuits. On the next two slides you should: • Show how a 555 IC can be used in an astable timing circuit and a monostable timing circuit, and describe the difference between the two. • Show how a 741 IC can be used as a comparator in a sensing circuit. • Show how an IC can be used in a counting circuit.

34. Task 9.1 – 555 IC

35. Task 9.2 – 741 IC

36. Task 9.3 – Counting

37. Task 10 – Circuit Design By the end of this task you should be able to: • Describe the systems approach including Input, Process, Output and Feedback. • Describe the advantages and disadvantages of the use of breadboards in circuit design. • Describe the advantages and disadvantages of computer aided design (CAD) simulation in circuit design. On the next three slides you should: • Show that you understand the systems approach by producing a systems diagram for the alarm system for the DT Block. • Show a photograph of a breadboard and list its advantages and disadvantages. • Show a screen shot from both Crocodile Technology and PCB Wizard, explain why both pieces of software are used, and what the advantages and disadvantages are of using them.

38. Task 10.1 – Systems Approach

39. Task 10.2 – Breadboards

40. Task 10.3 – Computer Aided Design

41. Task 11 – Circuit Manufacture By the end of this task you should be able to: • Describe at least one method of manufacturing printed circuit boards. • Describe how to undertake a fault finding exercise on a circuit board. • Describe how to connect two different circuit boards together effectively. On the next three slides you should: • Using a flow diagram, show the process of manufacturing a circuit using either traditional methods or inkjet technology. • Describe, using notes and sketches, how you would use a multi-meter to undertake a fault finding exercise on a circuit board. • Describe at least two different methods of connecting circuit boards together, including their advantages and disadvantages.

42. Task 11.1 – Circuit Manufacture

43. Task 11.2 – Fault Finding

44. Task 11.3 – Connecting Circuit Boards

45. Task 12 – Calculations By the end of this task you should be able to: • Understand the basic units used in electronics and their multiples. • Demonstrate how Ohm’s Law can be used in electrical calculations. • Calculate the total voltage of resistors in series and parallel. • Calculate the output voltage of a potential divider. On the first slide, you should complete the tables showing you understand all the basic electronic units and what their multiples mean. One in each table has been completed for you. One the following three slides you should complete the calculations given to you using the formulae you have been given.

46. Task 12.1 – Basic Units

47. V I R Answer 1 Answer 2 Answer 3 Task 12.2 – Ohm’s Law Formula • Using the formula given, complete the following calculations: • What resistance could you use with a 10V power supply to limit the current to 15mA? • A 430Ω resistor protects an LED in a 5V circuit. What is the current through the LED? • 12mA runs through a protective resistor of resistance 820Ω. What is the voltage across the resistor?

48. Answer Answer Task 12.2 – Resistors in Series and Parallel Using the formulae given, complete the calculations below. Resistors in Series Formula: Rt = R1 + R2 + R3 Resistors in Parallel Formula: 1 = 1 + 1 + 1 Rt R1 R2 R3 Note: All three resistors in parallel are 47MΩ

49. Answer Task 12.2 – Potential Divider Formula: Vs = R2.x V R1 + R2 A 27kΩ and a 62kΩ resistor are used in a potential divider using a 12V power supply. Using the set-up below, calculate the output voltage of the potential divider. +12V +12V R R 1 1 = 27k = 27kΩ VS R R 2 2 = 62k = 62kΩ 0 V 0 V

50. Student Name Task 13 – Anthropometrics and Ergonomics By the end of this task you should be able to: • Define ergonomics and anthropometrics. • Discuss the interaction between people and the products they use and the impact human size has on design. • Describe the application of anthropometric data to solve practical problems. On the next two slides you should: • Define what is meant by the terms ergonomics and anthropometrics and suggest how they might impact of the design of products. • Collect a range of anthropometric data, i.e. height, arm length, etc… from at least seven different people and present the data in graphical form.