Cambridge TECHNICALS CAMBRIDGE TECHNICALS IN ENGINEERING LEVEL 3 UNIT 5 ELECTRICAL AND ELECTRONIC DESIGN. RESOURCES LINK April 2015

Transcription

1 CAMBRIDGE IN ENGINEERING LEVEL 3 UNIT 5 ELECTRICAL AND ELECTRONIC DESIGN RESOURCES LINK April 2015

2 Introduction is an e-resource, provided by OCR, for teachers of OCR qualifications. It provides descriptions of, and links to, a variety of independent teaching and learning resources that you may find helpful. In you will find details of independent resources, many of which are free: where this is the case this has been indicated. If you know of other resources you would like to see included here, or discover broken links, please let us know. We would also like to hear from you if have any feedback about your use of these, or other, OCR resources. Please contact us at resources.feedback@ocr.org.uk. We leave it to you, as a professional educator, to decide if any of these resources are right for you and your learners, and how best to use them. 2

3 Contents Electrical Circuit Theory and Technology 5 Electrical and Electronic Principles 6 Unit and Circuit Symbols 7 Resistor Combinations 8 Ohm s Law and Power examples 9 Kirchhoff s Laws 10 RC circuits 11 What is alternating current (AC)? 12 The AC Waveform 13 Phase Difference and Phase Shift 14 Phase Difference and Phase Shift 15 Resistors, capacitors and inductors in AC circuits 16 Power Factor 17 Filters (low and high pass) 18 Battery types 19 Solar (PV) Cells 20 Rectifier circuits 21 Voltage regulators 22 Power supplies and load regulation 23 Fuses and circuit breakers 24 Diodes (circuit protection) 25 Transformer basics 26 Faraday s Law 27 Lenz s Law 28 Electric motors and generators (introduction) 29 DC motor types (series and shunt) 30 Motors (AC and DC) 31 Electromagnetic Compatibility 32 Electromagnetic Compatibility 33 System diagrams (basic introduction) 34 Open and Closed loop systems and block diagrams 35 Block Diagrams 36 Sensors and Transducers 37 Sensors and Transducers 38 Diodes 39 Transistors (switch) 40 Transistor (common emitter amplifier) 41 Darlington Pair 42 Darlington Pair 43 Op Amps comparator 44 3

4 Contents The summing op-amp 45 Online circuit simulator 46 Online op-amp simulator (from Texas Instruments) 47 Introduction to digital logic gates 48 Logic gate truth tables 49 Online logic simulator 50 Basic flip flops 51 The D-Type flip flop 52 JK and T type flip flops 53 Online simulation software 54 BCD Counter 55 Display Decoder 56 Data sheets online 57 Embedded systems - application of programmable devices 58 Microprocessors and Microcontrollers 59 Programmable Interface Controller (PIC) 60 Programmable Logic Controller (PLC) 61 System layouts for programmable devices the microwave oven 62 4

5 Electrical Circuit Theory and Technology (John Bird, 2013) A text book providing comprehensive coverage of circuit theory and electrical/electronic devices. OCR Technicals in Engineering Level Paperback or Kindle Book dp/ /ref=sr_1_2?ie=utf8&qid= &sr=8-2&keyword s=john+bird+electrical+and+electronic+principles+and+technology 5

6 Electrical and Electronic Principles (John Bird, 2014) A text book providing comprehensive coverage of electrical and electronic principles. OCR Technicals in Engineering Level Paperback or Kindle Book John/dp/ /ref=sr_1_1?ie=UTF8&qid= &sr=8-1&keywords=john+bird+electrical+and+electronic+principles+and+ technology 6

7 Unit and Circuit Symbols Comprehensive resource presenting standard electrical units and circuits symbols. with PDF to download. Institution of Engineering and Technology (IET). OCR Technicals in Engineering Level 3 Webpage with PDF download 7

8 Resistor Combinations Excellent introduction to resistor circuits including resistors in series and parallel. OCR Technicals in Engineering Level 3 Combination-Circuits 8

9 Ohm s Law and Power examples Recap on Ohm s Law and power calculations. Includes links to further tutorials on DC networks. OCR Technicals in Engineering Level 3 9

10 Kirchhoff s Laws A good introduction to Kirchhoff s first and second laws. OCR Technicals in Engineering Level

11 RC circuits An explanation with examples of RC circuits. Includes RC time constant. OCR Technicals in Engineering Level

12 What is alternating current (AC)? Introduction to AC theory includes generation and transmission and links to further detailed worksheets. OCR Technicals in Engineering Level

13 The AC Waveform An introduction to the theory of the AC waveform including amplitude, frequency and periodic time. OCR Technicals in Engineering Level

14 Phase Difference and Phase Shift An introduction to the concept of phase and phase angle in AC circuits. Explains how to construct phasor diagrams. OCR Technicals in Engineering Level

15 AC circuits: alternating current electricity An introduction to AC theory including the behaviour of inductors and capacitors in AC circuits. Has some useful animated graphics illustrating phase difference. OCR Technicals in Engineering Level

16 Resistors, capacitors and inductors in AC circuits An introduction to the behaviour of resistors, inductors and capacitors in AC circuits, including phasor diagrams. 12 page PDF including diagrams. OCR Technicals in Engineering Level 3 Online PDF RLC_Circuits.pdf 16

17 Power Factor Tutorial covering power factor in AC circuits. Includes detailed explanation and worked examples. OCR Technicals in Engineering Level

18 Filters (low and high pass) Tutorials explaining the function and application of low and high pass filters. Includes worked examples. OCR Technicals in Engineering Level

19 Battery types An explanation of the features and characteristics of different types of batteries. OCR Technicals in Engineering Level

20 Solar (PV) Cells Website dedicated to solar photo-voltaic (PV) cell education. Includes detailed explanation of how solar cells work. OCR Technicals in Engineering Level

21 Rectifier circuits A full explanation of the function and application of a range of DC diode rectifier circuits. OCR Technicals in Engineering Level

22 Voltage regulators A basic introduction to voltage regulators and power supplies. Includes a block diagram. OCR Technicals in Engineering Level

23 Power supplies and load regulation Explain the function and operation of stabilised power supplies, including load regulation. OCR Technicals in Engineering Level 3 Online PDF of%20electronics/ch-17.pdf 23

24 Fuses and circuit breakers A basic introduction to fuses. Also includes discussion about circuit breakers and other forms of circuit protection. OCR Technicals in Engineering Level

25 Diodes (circuit protection) Explains how diodes can be used to protect a circuit. OCR Technicals in Engineering Level

26 Transformer basics A basic introduction to transformers. Includes voltage, current and turns ratio. OCR Technicals in Engineering Level

27 Faraday s Law A tutorial explaining Faraday s Law. Includes practical experiments that could be performed. OCR Technicals in Engineering Level

28 Lenz s Law A tutorial explanation of Lenz s Law. OCR Technicals in Engineering Level

29 Electric motors and generators (introduction) An introduction to how DC motors and generators work. Includes animated diagrams. OCR Technicals in Engineering Level

30 DC motor types (series and shunt) An explanation of the different types of DC motor including series and shunt types. OCR Technicals in Engineering Level

31 Motors (AC and DC) Website with comprehensive explanation of AC and DC motor types. Includes videos of motors in operation. OCR Technicals in Engineering Level

32 Electromagnetic Compatibility Series of web pages explaining electromagnetic compatibility (EMC) and how it can be mitigated against. Ofcom website. OCR Technicals in Engineering Level 3 Radiocomms/index.htm 32

33 EMC and legislation Website explaining EMC and legislation. OCR Technicals in Engineering Level

34 System diagrams (basic introduction) A basic introduction to system diagrams. OCR Technicals in Engineering Level 3 industrial_designrev2.shtml 34

35 Open and Closed loop systems and block diagrams Website explaining open and closed loop systems, including inputs, outputs and feedback. OCR Technicals in Engineering Level

36 Block Diagrams Tutorial explaining the use of block diagrams for describing electrical and electronic systems. OCR Technicals in Engineering Level

37 Sensors and Transducers Tutorial covering sensors and transducers (input devices) and actuators (output devices). OCR Technicals in Engineering Level

38 7-segment LED displays Tutorial about LED displays (output devices). Website also includes tutorials about other output devices. OCR Technicals in Engineering Level

39 Diodes A basic introduction to the diode. Includes an explanation of circuit protection using diodes, and also zener diodes. OCR Technicals in Engineering Level

40 Transistors (switch) An explanation of how a transistor can be used as a switch. OCR Technicals in Engineering Level

41 Transistor (common emitter amplifier) An explanation of how a transistor can be used as a common emitter amplifier. OCR Technicals in Engineering Level

42 Darlington Pair A simple explanation of the Darlington pair transistor. OCR Technicals in Engineering Level

43 Op Amps A series of video tutorials introducing the characteristics, configuration and operation of op-amps. OCR Technicals in Engineering Level 3 with video tutorials 43

44 Op Amps comparator A tutorial explaining the function of op amps, including the op amp comparator. OCR Technicals in Engineering Level

45 The summing op-amp A tutorial about the summing op-amp. Includes characteristic equations. OCR Technicals in Engineering Level

46 Online circuit simulator online simulation package. Includes inverting, non-inverting and summing op-amps. Can perform simulation of other circuits, including digital circuits and flip flops. OCR Technicals in Engineering Level 3, but requires setup of login. Some limitations in free version. online simulation tool 46

47 Online op-amp simulator (from Texas Instruments) Online simulation tool includes inverting and noninverting op-amps. OCR Technicals in Engineering Level 3 simulation tool 47

48 Introduction to digital logic gates Complete set of tutorials covering digital logic gates and types. OCR Technicals in Engineering Level

49 Logic gate truth tables A tutorial about logic gate truth tables. Also has an introduction to Boolean algebra and expressions. OCR Technicals in Engineering Level

50 Online logic simulator Online logic simulator. Includes most popular logic gates and flip flops. Combinational circuits can be constructed and tested. OCR Technicals in Engineering Level 3 online simulation 50

51 Basic flip flops An introduction to the four main type of flip flop including D and T types. Begins with an explanation of the S-R flip flop (using NOR and NAND gates). OCR Technicals in Engineering Level

52 The D-Type flip flop An introduction to the operation of the D-type flip flop. OCR Technicals in Engineering Level

53 JK and T type flip flops Explanation of the operation of the JK and T type flip flop. Includes circuit diagrams and truth tables. OCR Technicals in Engineering Level jk-and-t-flip-flops/#imgn_1 53

54 Online simulation software Online simulation software. Includes simulation of analogue and digital circuits. Can also simulate flip flops. OCR Technicals in Engineering Level 3 (but requires login). version limited to circuits with 10 components. Online simulation tool

55 BCD Counter An explanation of how a BCD counter works. Describes the circuit for the BCD counter using JK flip flops. OCR Technicals in Engineering Level

56 Display Decoder A description of a display decoder from BCD to 7-segment. OCR Technicals in Engineering Level

57 Data sheets online An introduction to the four main type of flip flop including D and T types. Begins with an explanation of the S-R flip flop (using NOR and NAND gates). OCR Technicals in Engineering Level

58 Embedded systems application of programmable devices A basic introduction to embedded systems (i.e. systems using a programmable device such as a microprocessor or microcontroller). OCR Technicals in Engineering Level

59 Microprocessors and Microcontrollers A thorough video introduction to microcontrollers and comparison with microprocessors. OCR Technicals in Engineering Level 3 YouTube video 59

60 Programmable Interface Controller (PIC) An introduction to programmable interface controllers (PICs). OCR Technicals in Engineering Level

61 Programmable Logic Controller (PLC) An introduction to programmable logic controllers (PLCs). OCR Technicals in Engineering Level

62 System layouts for programmable devices the microwave oven Texas Instruments website with an example of an embedded system for a microwave oven. Website also includes system layouts and analysis of more embedded systems. OCR Technicals in Engineering Level

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