Full Wave Rectifier Project, Study Guides, Projects, Research of Physics

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PHYSICS PROJECT

ON

Full Wave Rectifier

Name – Somrat Dutta

Class – XII Sec – A

School Roll No –

Board Roll No –

School – Delhi Public School,

Siliguri

INDEX

1. AIM

2. ACKNOWLEDGEMENT

3. CERTIFICATE

4. INTRODUCTION

5. MATERIALS REQUIRED

6. CIRCUIT DIAGRAM

7. WORKING

8. BIBLOGRAPHY

The project could have never been possible without the support of various sources. It is extremely impossible to thank every individual who has helped me in completing this project. Some people have helped in the basic formularization and there were sources that helped me in giving the ideas a physical form/shape. I am extremely grateful to my mentor,

Mr. Shekhar Jha for his invaluable guidance in the project right from the beginning. His vital support helped the project to take a logical and suitable shape. I take this opportunity to thank the School authorities, for extending their full support and cooperation in the project. Last but not the least; I would like to thank everyone who has ofered a helping hand when required

CERTIFICATE

This is to certify that Somrat Dutta (Roll_No:…..……) student of Class XII, Delhi Public School, Siliguri has completed the project titled. “ Full Wave Rectiier ” during the academic year 2016-17 towards partial fulillment of credit for the Physics Project evaluation of AISSCE 2017 , and submitted working model and satisfactory report, as compiled in the following pages, under my supervision.

a replacement. So these rectiiers are used in most of the electronic devices like TV’s, Radios, Chargers,

and Lightings etc.

Materials required

1. Connecting wires
2. A plug
3. Single lead wire - 2m
4. 3 nuts & Bolts 2 to 3cm length

5. Circuit board
6. A Transformer
7. A capacitor
8. A Resistor (1 K Ω )
9. P-N junction diodes
10. A LED
11. Insulation tape, Blades, soldering wax, soldering lead, soldering iron &sand paper

circuit diagram

1st when the A.C. is supplied to the transformer, it steps down the 230V main supply to 6 volts. It has a capability of delivering a current of 500mA. The 6 volts A.C. appearing across the secondary is the RMS value and the peak value is 8.4 volts. During the 1st half cycle of the A.C. input Diode D1 is forward biased and a current ‘I’ lows in the circuit in the direction S 1D ABEOS1. During this time diode D2 is reverse biased. So it does not conduct any electric current. During the next half cycle, the diodeD2 is forward and D1 is reversed. Hence D2 conducts current in the direction S2D2 ABEOS2and D1 does not conduct any current. In subsequent half cycles of the A.C current the above processes are repeated.

In both the half cycles it is clear that current lows through the resistor in only one direction ABE. Even though the voltage across RL is unidirectional it will still contain a few A.C components. This is iltered and made smooth using a capacitor, which ilters 99% of the A.C current. A resistor is then used to adjust the output voltage. Capacitor also nearly ilters all A.C components from the supply and resistance is adjusted for the required output. As this is a simple circuit, only one capacitor and a resistance are being used. But there will be slight factor of A.C. current still left in the output but it is negligible. The output Direct Current and voltage light up the LED.

• Laboratory Manual (Rachna Sagar Pub.)
• Encyclopedia