explain the use of P_N diode as full wave rectifier
Answers
Answer:
pn dipole used for a waves that are rectifier in its full of balance due to north poles like distributed in its proportional motion.
Explanation:
In the above circuit, two junction diodes are connected to a load. This circuit gives out in both positive and negative halves of the AC cycle. Hence, it is a Full-wave Rectifier. In this circuit, the p-sides of both the diodes are connected to the input. And, the n-sides are connected together and connected to the load.
Also, the mid-point of the transformer is connected to the load to complete the circuit. This mid-point of connection is also called Center tap and hence, the transformer is called Center tap transformer.
The reason two diodes are connected is very simple. One diode rectifies the voltage for one half of the cycle while the other diode rectifies it for the other half. Therefore, the output between their common terminals and the centre-tap of the transformer becomes a full-wave rectifier output.
Working:
If the voltage at point A is positive, then that at point B is negative. In such a scenario, the diode D1 is forward biased while D2 is negatively biased. Hence, D1 conducts while D2 blocks the current. Hence, during the positive half of the input AC cycle, we get output current.
Subsequently, the voltage at point A becomes negative and that at point B becomes positive. In such a scenario, D2 conducts while D1 blocks the current. Hence, we get an output current in the negative half of the input AC cycle too.
Since the circuit rectifies both the halves of the input voltage, it is called Full-wave Rectifier. But, the output is pulsating and not steady. To derive a steady DC output, a capacitor is connected across the output terminals (parallel to the load).
