electrical devides lab

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description

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

Transcript of electrical devides lab

  • 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)
  • 24. Thank you