a brief presentation on the components and tasks that a btech student has to perform in a EDC lab in 2nd year
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Transcript
1. 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
2. UNITS OHM SYMBOL
3. 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
4. UNITS :- FARADS SYMBOL :-
5. 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:-
6. 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
7. TRANSISTOR is of two types they are :- 1.N P N Transistor
2.P N P Transistor
8. 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.
9. 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.
10. REGULATED POWER SUPPLY There are two types of power supply
they are :- 1.Linear regulated power supply 2.Switched mode power
supply (SMPS)
11. 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
12. 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
13. 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 .
14. 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 .
15. 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) .
16. 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 .
17. 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
18. C R O C R O stands for cathode ray oscilloscope It is used
to observe constant changing output signals .
19. 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.
20. 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
21. 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
22. INTRODUCTION TO BREAD BOARD
23. 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)