Draw a labelled diagram of a full wave rectifier circuit. State its working principle. Show the input-output waveforms.
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Diodes conduct only during forward bias condition .Diodes are D1,D2,D3,D4.
Diodes D2 and D3 are forward biased during positive half cycle of input supply and follow the path Vinput -D2-Resistor -D3- again Viput.
Other diodes during get FB during negative half cycle.Thus rectified output obtained
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