Basic elect app: project presentation

Dear student DEE 1931 ,

Your project group presentation will be held as below:

Date: 25/08/2010 (Wednesday)
Time:9.00 pm
Venue: as usual

Note:
1) Please bring together your project report
2) 15-20 minutes will be given for each group c/w Q&A session
3) Please make sure that you are well known of your project and any question shall be asked to any of your group member..

so, be prepared..Good luck

Basic elect app: project guideline

Dear student DEE 1931,

Please visit below link on project guidelines
http://www.4shared.com/document/lpDqPtp1/PROJECTS_nzj11.html

The report content shall not be limited to this guideline, you may add other info if related.

Two way switch

a two way switch have to work in pairs. Above is a simple schematic diagram of how the wiring for a two way switch should be installed.
As mentioned, a two way switch has three terminals, as seen in the diagram, S1 and S2 represents the two switches. In S1 you will notice that the live wire goes to a and then connected to c in the switch. In this case, the b terminal and the c terminal are the common terminals connected by two common wires to the common terminals of S2.
The diagram demonstrate a state where the light are now being switched OFF. Now for example, S1 is installed at one end of the corridor and S2 at the far end. When you enter the corridor, you will switch on the lights using S1. Inside the S1, the terminals are closed via a and c. What happens when you toggle the switch is the copper strip connecting a and c will be pushed to connect to b. That means a and b now forms a closed circuit. Now look at the diagram again.
The live wire from the mains will now go to a connected to c where it is again connected by common wire 2 to b2 of S2 which is the switch at the end of the corridor. This live supply then passes through to b2 to a2 and onwards to the light, thus completing the full loop to light up the light. All this while, S2 has never been touched.
When you walk right to the end of the corridor and you want to switch OFF the light, the switch will toggle the terminal from b2 to c2, breaking the circuit, thereby switching OFF the lights. The switch will stay that way for the whole duration until someone else switches the lights ON again at either end. When that happens the reverse order happens.

Basic elect app: notes_4th lab

1) Switches
http://www.4shared.com/document/9NjGDIhI/1_ELECTRICAL_SWITCHES.html
2) Relay
http://www.4shared.com/document/8za4kGD9/RELAYS.html
3) Sensor
http://www.4shared.com/document/aiXxwCva/SENSORS.html
4) Timer relay
http://www.4shared.com/document/P4fHIXxt/TIMERRELAY.html

Basic elect app: Lab cancelled

Dear student DEE 1931,

Your lab as below will be cancelled

Date: 04/08/2010 (Wednesday)
Time: 9.00 am

However, lab on this Thursday is ON as usual.

Basic elect app: Theory test 1

DEE 1931: Basic Electronic Application (Theory test 1)

Date: 29-July-10
Time: 2.00 pm (1 hour)
Venue: F03

Hint:
1) Design question using 7-segment common cathode
2) Calculate oscilloscope sawtooth signal
3) Determine value by code

Basic Elect App: notes_se2 lab

1. Oscilloscope: http://www.4shared.com/document/gabZL9tu/2_Oscilloscope.html
2. Function generator: http://www.4shared.com/document/CJPMT3q2/3_Function_Generator.html

Basic elect app: 1st quiz

Dear students (DEE 1931),

Please be informed that your 1st quiz will be held as below:

Date: 22/07/2010
Venue: F03
Time: 2.00 pm sharp
Duration: 10 -15 minutes

Quiz guideline/ indication:-
1) What is definition of .................
2) What is the purpose of ...............
3) Steps to measure ..........

Please be there on time.
Late comers will not be entertained.

Basic elect app: capacitor

What is a Capacitor?

A capacitor consists of two conductive metal plates separated by an insulating dielectric.
The dielectric can be made of glass, ceramic, Tantalum oxide, or plastics such as polyethylene or polycarbonate.
Even air can be used as the dielectric.
When the capacitor holds some energy in the form of extra electrons on one plate and electron holes on the other we say that the capacitor is charged.

Farads
Capacitance (C) is the amount of charge per volt of potential that a capacitor holds.
(C =Q/V where Q = coulombs (the unit of charge) and V = Volts)

Capacitance is measured in farads, but most often a small fraction of a farad thus:

* micro-farads uF millionths (10-6) farads
* pico-farads pF (10-12) farads


###L (Three numbers and a letter) Numbers 1 and 2 are value digits.
Number 3 is a multiplier: 0 = × 1, 1 = × 10, 2 = × 100, 3 = × 1000, 4 = × 10,000.
Letter denotes tolerance: J = 5%, K = 10%, L = 20%
##p or ##n Numbers 1 and 2 are value digits.
p denotes pF, n denotes nF.


Letter symbol Tolerance of capacitor
D +/- 0.5 pF
F +/- 1%
G +/- 2%
H +/- 3%
J +/- 5%
K +/- 10%
M +/- 20%
P +100% ,-0%
Z +80%, -20%

Eg: 103J is a 10,000 pF with +/-5% tolerance

Basic elect app: Notes (1st lab)

1. Safety & regulations: http://www.4shared.com/document/7VYV3v0y/1_Safety_And_Regulations.html
2. Basic component: http://www.4shared.com/document/azoiYyQh/2_Basic_Components.html
3. Breadboard: http://www.4shared.com/document/mwUGXGqh/3_Breadboard.html
4. DC Power supply: http://www.4shared.com/document/eT6-3h44/4_DC_Power_Supply.html
5. Digital multimeter: http://www.4shared.com/document/X5GlArRr/5_Digital_Multimeter.html

Basic Electronic Application: Breadboard

Uses of Breadboards
A breadboard is used to make up temporary circuits for
testing or to try out an idea. No soldering is required so it is
easy to change connections and replace components. Parts
will not be damaged so they will be available to re-use afterwards.

Connections on Breadboards

Breadboards have many tiny sockets
(called 'holes') arranged on a 0.1" grid.
The leads of most components can be
pushed straight into the holes. ICs are
inserted across the central gap with their
notch or dot to the left. Wire links can be
made with single-core plastic-coated wire
of 0.6mm diameter (the standard size).
Stranded wire is not suitable because it
will crumple when pushed into a hole and
it may damage the board if strands break
off.
for further info, clicks to the following link:
http://www.4shared.com/dir/2qmK8aTo/basic_elect_app__breadboard.html

Lab cancelled

Dear Student DEE1931

Your lab for the following date will be cancelled due to Germany Day as ordered by TNC

Date: 15-July-2010 (Thursday)

Lab will be as usual for next week (21-July-2010)

Announcement!!

Attn: Diploma student

Your basic electronic application lab (DEE 1931) will be held as below:

Date: Wednesday (14-July-2010)
Time: 9.00 am
Venue: Lab F3 (Level 2, Block 1)

Your attendance is compulsory.
Please let your friends know about this.

~Intro~

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