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.