E L E C 1 1 1 1
E L E C 1 1 1 1
-
-
L A B
L A B
W O R K
W O R K
CONTENTS
CONTENTS
Laboratory Expt
Laboratory Expt –– Intro ... 2Intro ... 2 Laboratory Expt
Laboratory Expt –– Circuit Construction ... 2Circuit Construction ... 2 Laboratory Expt
Laboratory Expt –– Voltage Sources and Node Equations ... 3Voltage Sources and Node Equations ... 3 Laboratory Expt
Laboratory Expt –– RC Transients ... 3RC Transients ... 3 Laboratory Expt
Laboratory Expt –– Radio Controlled Car ... 4Radio Controlled Car ... 4 Laboratory Expt
Laboratory Expt –– Power and Energy ... 5Power and Energy ... 5 Laboratory Expt
Laboratory Expt –– Feedback Control ... 5Feedback Control ... 5 Laboratory Expt
Laboratory Expt –– AM radio reciever, Crystal Set ... 6AM radio reciever, Crystal Set ... 6 Laboratory Expt
Laboratory Expt –– A/D & D/A conversion ... 6A/D & D/A conversion ... 6 Laboratory Expt
LABORATORY EXPT – INTRO
Things to know:
Prototyping Board (Appendix 1)
Reading Resistor color codes (Appendix 2)
Digital Multimeter (Appendix 3)
Power Supply (Appendix 4)
Signal Generator (Appendix 5)
The Oscilloscope (Appendix 6)
Things to bring:
Prototyping board
Notes:
1. When using the Precision Resistance Bridge:
a. Make sure you’re measuring resistance not something else
b. There is a button just under the two metal jaws. That button will open the metal jaws. Use it. Pre-Lab:
Section A - Theoretic equivalent resistance: [() ]
LABORATORY EXPT – CIRCUIT CONSTRUCTION
Things to know:
Soldering (Appendix 8)
Things to bring:
Your entire Lab kit (PCB, Resistors, LED’s, etc.)
Notes:
1. You can build and test your LED circuit on your breadboard instead of soldering it all together 2. Make sure your LED’s are the correct way around
Pre-Lab:
Assemble the amplifier and tape down the components so they don’t fall out during transport. You can solder at home if you have a soldering iron.
LABORATORY EXPT – VOLTAGE SOURCES AND NODE EQUATIONS
Things to know:
V=IR
Kirchhoff’s Laws
Node voltage equations
Things to bring:
Prototyping board 9V Battery
Notes:
1. Your battery will drop in voltage as it is used Pre-Lab:
Section A - i) Load current:
Power dissipated: Power delivered:
Power delivered equals power dissipated? Yes - ii) Terminal Voltage: 8.3 A
Current flowing:
Voltage drop: 1.2V Internal resistance:
LABORATORY EXPT – RC TRANSIENTS
Things to know:
How a capacitor works
Things to bring:
Breadboard
LED set
Something that can count seconds
Notes:
1. The capacitor won’t be destroyed if it’s non-polarized.
2. You don’t have to do Part C if you don’t want to. However you can get bonus Lab marks which may help cover marks you lost in other labs
LABORATORY EXPT – RADIO CONTROLLED CAR
Things to know:
AM, FM, PWM and PPM signals
Things to bring:
Yourself and the Lab book
Notes:
1. The radio uses PPM except the oscilloscope will show them as voltage drops Pre-Lab:
You may want to exaggerate the amount of amplitude and frequency modulation. PWM
LABORATORY EXPT – POWER AND ENERGY
Things to know:
P=IV
Things to bring:
3 different colored pens
Notes: N/A Pre-Lab: Result h)
Type Power Light Output Output/Watt
(performance)
Incandescent 100 W 1500 Lumens 15 L/W
Compact Florescent 18 W 1400 Lumens 78 L/W
Compact Florescent 9 W 600 Lumens 67 L/W
Quartz halogen 50 W 600 Lumens 12 L/W
LED 5 W 150 Lumens 30 L/W
LABORATORY EXPT – FEEDBACK CONTROL
Things to know:
Read the information given
Things to bring:
Your best reaction skills and maybe something that you can use to count seconds
Notes:
1. You can hit pause to draw the graph
2. If you hit pause more than once in the application you may need to click run more than once Pre-Lab:
LABORATORY EXPT – AM RADIO RECIEVER, CRYSTAL SET
Things to know:
How a radio works
Things to bring:
Headphones or the provided headphone in your lab kit
Notes:
1. For the last question asking how many stations you can get you can just write 0 Pre-Lab:
AM – Amplitude modulation alters and encodes the signal in the varying amplitude of a frequency-constant wave
FM – Frequency modulation alters and encodes the signal in the varying frequency of a amplitude-constant wave
LABORATORY EXPT – A/D & D/A CONVERSION
Things to know:
What sampling is w.r.t. A/D and D/A conversions
Things to bring:
Headphones or the provided headphone in your lab kit
Notes:
1. Do the Prelim reading before the lab, there’s a lot to read
2. Make sure the equipment is wired properly and the wires are as short as possible. Long wires will cause problems.
Pre-Lab: None
LABORATORY EXPT – INTRODUCTION TO DIGITAL LOGIC
Things to know:
Logic Gates NOT, AND, OR, NAND, NOR, XOR Truth tables
Things to bring:
Yourself and the Lab book
Notes:
1. Lab not usually done Pre-Lab: