I want to prepare a physics project work for class XII . "FULL WAVE RECTIFIER".?

Question

FULL WAVE RECTIFIER---- WHAT R THE MATERIAL REQUIRED & DIAGRAM & function .

Answer 1

a full wave rectifier tranforms AC to DC. first of all you must decide what is going to be the DC voltage at the total end of your design. in order to make it handy i would suggest a 12 or a 5VDc rectified power supply.

the componetnts and means that you will need are.....

an AC voltage source.....
a transformer if the DC in the out put has to be less than the AC input
4 diodes or better a bridge (that is actually four diodes stratigically pleace)
a rectifying capacitor widely used at 2200uF depending on the application
and if you want to be nice use an LM7812 ot LV7805 (for 12 volts or 5 volts accordingly)

if just a rectifier is needed then just guide the AC to the sratigically place diodes or in the bridge and at the output of the bridg connect the rectifying capacitor.........

the diodes(bridge) will create a fluctuating wave that will not go under the yaxis but it will variate according the frequency of the AC source. the capacitor will help you to produce something like a DC out put since it fall time will be greater than the actuall fall time of the AC wave.
at this point the output would look and resempble a lot like a dc wave. please note that at the outpout of the capacitor the voltage is a little bie larger than the peak valuw of theinput coltage.
by using an LM (voltage regulator at desired value) then you will have a perfect DC output.

Answer 2

u need a center tapped step up or down transformer,two diodes,connection wires connecting plates soldering iron etc
for diagram refer your text books
the output of FWR is unidirectional but alternating current .
u can use a capacitor for filtering(decreasing the ac content)
FWR is used for rectification.ie, making alternating current unidirectional.

Answer 3

Go to the following site you will get all the required information

http://www.visionics.ee/curriculum/Experiments/FW%20Rectifier/Full%20Wave%20Rectifier1.html