Question

write a neat circuit diagram , explain the working of full wave rectifier and draw input output wave forms​

Answer 1

Answer:

The full wave rectifier circuit consists of two power diodes connected to a single load resistance (RL) with each diode taking it in turn to supply current to the load. When point A of the transformer is positive with respect to point C, diode D1 conducts in the forward direction as indicated by the arrows.

Answer 2

Answer:

Explanation:

Working:- The AC input voltage across secondary s  1  and s  2

changes polarity after each half cycle. Suppose during the first half cycle of input AC signal, the terminal s  1  is positive relative to centre tap O and s  2

is negative relative to O. then diode D  1  is forward bias and diode D  2

is reverse biased. Therefore diode D  1  conduct while diode D  2

does not.  In next half cycle,  the terminal s  1  is negative relative to centre tap O and s  2  is positive relative to O. then diode D  2  is forward bias and diode D  1  is reverse biased. Therefore diode D  2  conduct while diode D  1

​does not.  The direction of current in resistance R  L  is same from A to B for both half cycles. hence for input AC signal the output current is a continuous series of unidirectional pulses.