a brief presentation on the components and tasks that a btech student has to perform in a EDC lab in 2nd year

4. RESISTOR
• It restricts the flow of current in
an electric circuit .
• A resistor is a passive two-
terminal electrical component
that implements electrical
resistance as a circuit element

5. • UNITS – OHM
• SYMBOL

6. CAPACITOR
• A Capacitor is a electric component
used to store energy electrostatically
in an electric field
• A Capacitor consists of two parallel
conducting plates which are
seperated by some distance

7. • UNITS :- FARADS
• SYMBOL :-

8. INDUCTOR
• An inductor, also called a coil or reactor, is a
passive two-terminal electrical component
which resists changes in electric current
passing through it.
• UNITS :- HENRY
• SYMBOL:-

9. TRANSISTOR
• A transistor is a semiconductor device
used to amplify and switch electronic
signals and electrical power.
• Transistor is three layer component with
the combination of n-type
semiconductor and p-type semi
conductor

10. • TRANSISTOR is of two types they are :-
1.N P N Transistor
2.P N P Transistor

11. MULTIMETER
• A multimeter or a multitester, also
known as a VOM (Volt-Ohm meter), is an
electronic measuring instrument that
combines several measurement
functions in one unit.
• A typical multimeter would include basic
features such as the ability to measure
voltage, current, and resistance.

12. • Multimeters can measure many
quantities. The common ones are:
• Voltage, alternating and direct, in volts.
• Current, alternating and direct, in
amperes.
• The frequency range for which AC
measurements are accurate must be
specified.
• Resistance in ohms.

14. REGULATED POWER SUPPLY
There are two types of power supply
they are :-
1.Linear regulated power supply
2.Switched mode power supply
(SMPS)

16. TRANSFORMER
• Transformer is a device used to converts
high Ac voltage to low ac voltage ,
• There are two types of transformers .
They are
1 . Step up transformer
2 .Step down transformer

18. RECTIFIER
• Rectifier is used to convert AC input
voltage to DC output voltage
• Rectifier is of two types .They are :-
1 . Half wave rectifier
2.Full wave rectifier

20. SMOOTHING/FILTER
• We need to smooth out the pulsations
to get much cleaner dc power . This is
done by filter circuit .
• Types of filters :-
1. Capacitor filter : Used to obtain
essentially a dc voltage with some
ripple .

21. 2 .RC filter : Used to reduce ripple
across a filter capacitor .
3 .LC filter : used to reduce hump
and ripple and it is used in the
places where noise should be
reduced .

22. REGULATOR
• Regulator eliminates ripple by setting
DC to a fixed voltage .
• Many regulators consists of
automatic protection ,excessive
current (overload protection) and
overheating( thermal protection) .

24. ZENER DIODE REGULATOR
• For low current supplies a simple voltage
regulator can be made with a resistor and a
zener diode connected in reverse as shown in
the figure .

25. ADVANTAGES OF REGULAR POWER
SUPPLY
• The linear power supply is the
building block of every power supply
used in electronics .
• The I C used is one of the most
cheapest component in the
electronic assembly

26. C R O
• C R O stands for cathode ray oscilloscope
• It is used to observe constant changing output
signals .

27. APPLICATIONS OF CRO:
1. Measurement of current
2. Measurement of voltage
3. Measurement of power
4. Measurement of frequency
5. Measurement of phase angle
6. To see transistor curves
7. To trace and measuring signals of RF, IF
and AF in radio and TV.
8. To trace visual display of sine waves.

29. List of Experiments
1. Study of CRO
2. Characteristics of Silicon and Germanium
diodes
3. Characteristics of Zener diode and regulator
4. Characteristics of Common Base
Configuration
5. Characteristics of Common Emitter
Configuration
6. Characteristics of Emitter Follower circuit
7. Characteristics of JFET

30. 8. Characteristics of UJT
9. Design and verification of self bias circuit
10.Characteristics of Silicon Controlled
Oscillator
11.Characteristics of DIAC
12.Characteristics of Thermistor
13.Characteristics of Source Follower circuit
14.Design and Verification of Collector to
Base bias circuit

31. INTRODUCTION TO BREAD BOARD

32. APPLICATIONS
• EDC components are used for designing
small integrated circuits and devices,
• eg: mobile chargers,this works on the
basis of RPS (REGULATED POWER SUPPLY)

33. Thank you