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