cambridge technicals in engineering - · pdf fileelectrical circuit theory and technology...

TECHNICALSCambridge

CAMBRIDGE TECHNICALS IN ENGINEERINGLEVEL 3 UNIT 7 – ELECTRICAL DEVICES

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Resources Link 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 Resources Link you will find details of independent resources, many of which are free: where this is the case this has been indicated.

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Introduction


3

Contents

Electrical Circuit Theory and Technology (John Bird, 2013) 4

Electrical and Electronic Principles (John Bird, 2014) 5

Thyristors 6

Thyristors 7

MOSFET (metal oxide semiconductor field effect transistor) 8

MOSFET (metal oxide semiconductor field effect transistor) 9

IGBT (insulated gate bipolar transistor) 10

Guide to programmable logic devices 11

Gate array logic 12

FPGA (field programmable gate array) 13

SRAM (static random access memory) 14

EPROM (erasable programmable read only memory) 15

EPROMS – applications 16

Flash memory 17

Microprocessors and Microcontrollers 18

Microprocessor and microcontroller architecture 19

8085 microprocessor architecture 20

PIC architecture 21

PLC (programmable logic controller) 22

Light sensor (phototransistor) 23

Temperature sensor (thermistor) 24

Force/pressure sensor (strain gauge) 25

Position sensor (LVDT – linear variable differential transformer) 26

Speed sensor (tachogenerator) 27

Flow sensors 28

Sound sensor (microphones) 29

Electric linear actuator 30

Electric rotary actuator (servo motor) 31

Linear solenoid actuator 32

Sensors and transducers 33

The 4-20 mA current loop 34

Sensor interfacing 35

Active (op amp) low pass filter 36

Analogue to Digital (A to D) and Digital to Analogue (D to A) conversion 37

Analogue to Digital and Digital to Analogue conversion 38

Parallel to Serial and Serial to Parallel converters 39

Baud and bit rate 40

Introduction to modern materials 41

Quantum tunnelling composite (QTC) 42

Shape memory alloy (SMA) 43

Electroluminescent (EL) material 44

Electrochromic material 45

Conductive polymers 46

Piezoelectric material 47

Electrorheological (ER) fluid 48

Thermoelectric material 49


4

Electrical Circuit Theory and Technology (John Bird, 2013)

Description:A text book providing comprehensive coverage of circuit theory and electrical/electronic devices.

Supports:OCR Cambridge Technicals in Engineering Level 3 Unit 7

Cost:Approx £30

Format:Paperback book/Kindle

http://www.amazon.co.uk/Electrical-Circuit-Theory-Technology-John/dp/0415662869/ref=sr_1_2?ie=UTF8&qid=1417770198&sr=8-2&keywords=john+bird+electrical+and+electronic+principles+and+technology





5

Electrical and Electronic Principles (John Bird, 2014)

Description:A text book providing comprehensive coverage of electrical and electronic principles. Includes coverage of electronic devices.


Cost:Approx £24

Format:Paperback book/Kindle

http://www.amazon.co.uk/Electrical-Electronic-Principles-Technology-John/dp/0415662850/ref=sr_1_1?ie=UTF8&qid=1417770198&sr=8-1&keywords=john+bird+electrical+and+electronic+principles+and+technology





6

Thyristors

Description:Good basic introduction to how a thryristor works, including applications.


Cost:Free

Format:Web page

http://www.technologystudent.com/elec1/thyris1.htm

http://www.technologystudent.com/elec1/thyris1.htm


7

Thyristors

Description:Comprehensive explanation of how a thryristor works, including applications.


Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/power/thyristor.html

http://www.electronics-tutorials.ws/power/thyristor.html


8

MOSFET (metal oxide semiconductor field effect transistor)

Description:A video explanation of how the MOSFET can be used to turn a lamp on and off. Could be used as the basis to practically build a circuit.

Supports:OCR Cambridge Technicals in Engineering Level 3Unit 7

Cost:Free

Format:Youtube video

http://www.youtube.com/watch?v=Te5YYVZiOKs

http://www.youtube.com/watch?v=Te5YYVZiOKs


9

MOSFET (metal oxide semiconductor field effect transistor)

Description:A thorough introduction to how a MOSFET works.

Supports:OCR Cambridge Technicals in EngineeringUnit 7

Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/transistor/tran_6.html


10

IGBT (insulated gate bipolar transistor)

Description:A thorough explanation of how the IGBT works.

Supports:OCR Cambridge Technicals in EngineeringUnit 7

Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/power/insulated-gate-bipolar-transistor.html

http://www.electronics-tutorials.ws/power/insulated-gate-bipolar-transistor.html


11

Guide to programmable logic devices

Description:An introductory guide to programmable logic devices.

Supports:OCR Cambridge Technicals in Engineering Unit 7

Cost:Free

Format:Web page

http://www.instructables.com/id/A-Beginners-Guide-to-Programmable-Logic-Devices/




12

Gate array logic

Description:Video tutorial explaining gate array logic devices (e.g. PAL and PLA devices).


Cost:Free

Format:Web page

http://www.allaboutcircuits.com/videos/89.html

http://www.allaboutcircuits.com/videos/89.html


13

FPGA (field programmable gate array)

Description:A comprehensive explanation of how FPGA works.


Cost:Free

Format:Web page

http://www.fpga4fun.com/FPGAinfo1.html

http://www.fpga4fun.com/FPGAinfo1.html


14

SRAM (static random access memory)

Description:Explanation of how SRAM works – including how it uses flip-flops to store information.


Cost:Free

Format:Web page

http://www.eeherald.com/section/design-guide/esmod15.html

http://www.eeherald.com/section/design-guide/esmod15.html


15

EPROM (erasable programmable read only memory)

Description:A video showing the first EPROM chip. Contains a basic introduction to operation, and how technology has progressed according to Moore’s Law.


Cost:Free


http://www.youtube.com/watch?v=uKk7fVIZPE4

http://www.youtube.com/watch?v=uKk7fVIZPE4


16

EPROMS – applications

Description:A video showing EPROMS being read, erased and re-programmed for video games. Shows very clearly the function and operation of the EPROM.


Cost:Free


http://www.youtube.com/watch?v=KcH8lIEvXL0

http://www.youtube.com/watch?v=KcH8lIEvXL0

jredhead

Sticky Note

Marc This link is showing ho to copy programmes from video arcade games - this might be technically interesting but not sure we should 'promote' this kind of activity. What do you think?

weissm

Sticky Note

What they are doing here is not illegal I don't believe, but worth double-checking with Jon? The fact it carries an ad and has been up since 2012 makes me think there is nothing that concerns the arcade game companies.


17

Flash memory

Description:A basic introduction to flash memory.


Cost:Free

Format:Web page

http://www.explainthatstuff.com/flashmemory.html

http://www.explainthatstuff.com/flashmemory.html


18

Microprocessors and Microcontrollers

Description:A thorough video introduction to microcontrollers and comparison with microprocessors.


Cost:Free


http://www.youtube.com/watch?v=CmvUY4S0UbI

http://www.youtube.com/watch?v=CmvUY4S0UbI


19

Microprocessor and microcontroller architecture

Description:A comparison of the architecture between the microprocessor and microcontroller.


Cost:Free

Format:Web page

http://www.electronicshub.org/difference-between-microprocessor-and-microcontroller/




20

8085 microprocessor architecture

Description:An explanation of the internal architecture of the Intel 8085 microprocessor.


Cost:Free

Format:Web page

http://www.tutorialspoint.com/computer_logical_organization/cpu_architecture.htm




21

PIC architecture

Description:An explanation of the internal architecture of the PIC chip.


Cost:Free

Format:Web page

http://www.electronicshub.org/pic-microcontroller-architecture/

http://www.electronicshub.org/pic-microcontroller-architecture/


22

PLC (programmable logic controller)

Description:A block diagram of the internal architecture of a PLC.


Cost:Free

Format:Web page

http://www.ti.com/solution/programmable-logic-controller-diagram

http://www.ti.com/solution/programmable-logic-controller-diagram


23

Light sensor (phototransistor)

Description:A description of the function and operation of the phototransistor. Includes circuits that could be built. Also includes other optical devices such as the photodiode.


Cost:Free

Format:Web page

http://www.radio-electronics.com/info/data/semicond/phototransistor/photo-transistor-circuits-symbols.php




24

Temperature sensor (thermistor)

Description:An explanation of the thermistor, including its operation in a circuit.


Cost:Free

Format:Web page

http://www.technologystudent.com/elec1/therm1.htm

http://www.technologystudent.com/elec1/therm1.htm


25

Force/pressure sensor (strain gauge)

Description:Explanation of how to measure force using strain gauges. Includes bridge circuit configuration.


Cost:Free

Format:Web page

http://www.ni.com/white-paper/3642/en/

http://www.ni.com/white-paper/3642/en/


26

Position sensor (LVDT – linear variable differential transformer)

Description:An explanation of how position can be measured using an LVDT.


Cost:Free

Format:Web page

http://www.macrosensors.com/lvdt_tutorial.html

http://www.macrosensors.com/lvdt_tutorial.html


27

Speed sensor (tachogenerator)

Description:An explanation of the tachogenerator – including reference to calibration graphs.


Cost:Free

Format:Web page

http://www.tachogeneratorsguide.com/whatis.html

http://www.tachogeneratorsguide.com/whatis.html


28

Flow sensors

Description:An introduction to flow sensors. Also includes other types of sensors.


Cost:Free

Format:Web page

http://www.engineershandbook.com/Components/flowratesensors.htm

http://www.engineershandbook.com/Components/flowratesensors.htm


29

Sound sensor (microphones)

Description:A video showing how the microphone works. Includes carbon, dynamic, and electret condenser type microphones.


Cost:Free


http://www.youtube.com/watch?v=kwE9lXbs3Rg

http://www.youtube.com/watch?v=kwE9lXbs3Rg


30

Electric linear actuator

Description:A manufacturer’s website showing a range of electric linear actuators.


Cost:Free

Format:Web page

http://www.techdrives.co.uk/linear_actuators.html

http://www.techdrives.co.uk/linear_actuators.html


31

Electric rotary actuator (servo motor)

Description:An explanation of the servo motor and its application as a rotary actuator.


Cost:Free

Format:Web page

http://electrical4u.com/servo-motor-servo-mechanism-theory-and-working-principle/




32

Linear solenoid actuator

Description:An explanation of linear solenoid actuators. Also includes rotary actuators, and how actuators can be controlled.


Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/io/io_6.html


33

Sensors and transducers

Description:Good introduction to sensors and transducers. Includes details of signal conditioning and scaling.


Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/logic/logic_1.html

http://www.electronics-tutorials.ws/logic/logic_1.html


34

The 4-20 mA current loop

Description:Explanation of how the 4-20 mA current loop operates.


Cost:Free

Format:Web page

http://www.sensorland.com/HowPage028.html

http://www.sensorland.com/HowPage028.html


35

Sensor interfacing

Description:Good introduction to sensor interfacing techniques including scaling.


Cost:Free

Format:Web page

http://www.sensorwiki.org/doku.php/tutorials/basic_sensor_interfacing_techniques




36

Active (op amp) low pass filter

Description:Thorough explanation of how the active low pass filter works. Also includes link to active high pass filter.


Cost:Free

Format:Web page

http://www.electronics-tutorials.ws/filter/filter_5.html

http://www.electronics-tutorials.ws/filter/filter_5.html


37

Analogue to Digital (A to D) and Digital to Analogue (D to A) conversion

Description:An explanation of the purpose of A to D and D to A converters, and how they can be achieved using a summing op amp circuit.


Cost:Free

Format:Web page

http://www.allaboutcircuits.com/vol_4/chpt_13/1.html



38

Analogue to Digital and Digital to Analogue conversion

Description:A video tutorial demonstrating how an A to D and D to A converter works using a circuit simulation. Uses a simple resistor chain and an op amp comparator.


Cost:Free


http://www.youtube.com/watch?v=wIKNRzjMZcs

http://www.youtube.com/watch?v=wIKNRzjMZcs


39

Parallel to Serial and Serial to Parallel converters

Description:An explanation of parallel to serial and serial to parallel converters using shift registers and flip flops.


Cost:Free

Format:Web page




40

Baud and bit rate

Description:An explanation, with examples, of how to determine baud and bit rate for a serial signal.


Cost:Free

Format:Online simulation tool

http://www.circuitstoday.com/bit-rate-vs-baud-rate-the-common-misconception




41

Introduction to modern materials

Description:An introduction to the importance of smart materials from the Smart Materials Sector of the Materials Community. The website is from Innovate UK – formerly the Technology Strategy Board.


Cost:Free

Format:Web page

http://connect.innovateuk.org/web/smart-materials

http://connect.innovateuk.org/web/smart-materials


42

Quantum tunnelling composite (QTC)

Description:Manufacturer using QTC for commercial applications. Includes video demonstrations of QTC.


Cost:Free

Format:Web page

http://www.peratech.com/qtc-material.html

http://www.peratech.com/qtc-material.html


43

Shape memory alloy (SMA)

Description:Explanation of how SMA works – including applications.


Cost:Free

Format:Web page

http://www.technologystudent.com/equip1/sma1.htm

http://www.technologystudent.com/equip1/sma1.htm


44

Electroluminescent (EL) material

Description:You Tube video showing electroluminescent material and explaining its operation. Shows some wearable electronic applications.


Cost:Free


http://www.youtube.com/watch?v=RJ2xGFfrND0



45

Electrochromic material

Description:Demonstration of electrochromic material being used with glass to adjust its opacity.


Cost:Free





46

Conductive polymers

Description:A feature about electrically conductive polymers. Also includes applications.


Cost:Free

Format:Web page

http://www.assemblymag.com/articles/88381-plastics-assembly-electrically-conductive-polymers




47

Piezoelectric material

Description:An introduction to piezoelectric materials, including their applications in sensors and transducers.


Cost:Free

Format:Web page

http://www.piezomaterials.com/

http://www.piezomaterials.com/


48

Electrorheological (ER) fluid

Description:Demonstration of ER fluid.


Cost:Free


http://www.youtube.com/watch?v=NOot5wxuxSg

http://www.youtube.com/watch?v=NOot5wxuxSg


49

Thermoelectric material

Description:National Physics Laboratory (NPL) video about thermoelectric materials.


Cost:Free


http://www.youtube.com/watch?v=fmsQJYPpZ2o&index=4&list=PLEBnKbZjYJ_rHB5V3-uyD8_TYZ5wDGIkU




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cambridge technicals in engineering - · pdf fileelectrical circuit theory and technology...

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