FULL WAVE RECTIFIER

1. WHAT IS A FULL WAVE RECTIFIER?

Full wave rectifier is a rectifier that converts both cycles of AC signal into a DC signal .

it is used for rectification process.

The extent of rectification is very good when compared to the have rectifier as here we use 2 diodes which conduct both in the positive and negative cycles of the alternating current .

WORKING

Initially consider that the 2 diodes are d1 and d2 . Initially d1 is forward biased and d2 is reverse biased . So d1 conducts and d2 doesn't conducts . Therefore rectification takes place during the positive half cycle of the AC signal .

During the negative half cycle d1 is reverse biased and d2 is forward biased. Therefore d2 conducts and rectification takes place and AC is converted to DC .

CIRCUIT DIAGRAM

COMPONENTS REQUIRED

Given below are the components required for the construction of full wave rectifier

• breadboard

• transformer

• jumper wire or single strand wires

• power supply for transformer

• 2 PN junction diodes

• load resistance

• capacitor for filtering

• multimeter

CONSTRUCTION AND WORKING

1. The components are connected as shown in the circuit diagram above.

2. power supply is given to the transformer

3. rectification is going on

4. during the positive half cycle d1 is forward biased and d2 is reverse biased . So d1 conducts and d2 doesn't conducts . Therefore rectification takes place during the positive half cycle of the AC signal .

5. During the negative half cycle d1 is reverse biased and d2 is forward biased. Therefore d2 conducts and rectification takes place and AC is converted to DC .

6. the voltage is measured at the load using multimeter

7. the output voltage is given by Vdc=2vm/pi=2*17/3.14=10.828

1. a high value of capacitor causes more filtering of the output

2. then we connect a capacitor (filter circuit)

3. therefore the AC ripples gets converted into DC

The link to the video is given below

Do give it a watch

https://youtu.be/fbM96QuUq1I

Click here for the working video