What is rectification?
"A rectifier is a device which is used to convert alternating current to direct current and this process is known as rectification".
The dc level obtained from a sinusoidal input can be improved by rectification. it is a process in which four diodes are connected in series in the form of closed loop called bridge configuration. A bridge rectifier provides full wave rectification from two wire AC input.
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"A rectifier is a device which is used to convert alternating current to direct current and this process is known as rectification".
The dc level obtained from a sinusoidal input can be improved by rectification. it is a process in which four diodes are connected in series in the form of closed loop called bridge configuration. A bridge rectifier provides full wave rectification from two wire AC input.
In the above circuit full wave bridge rectifier has shown. there are four diodes D1 to D4 arranged in bridge configuration. only two diodes conduct during each half cycle.
in the positive half cycle diodes D1 & D2 are conducting while D3 & D4 are reverse biased.
During negative half cycle diodes D1 & D2 are reverse biased and diodes D3 & D4 are conducting.
Output waveform:
Over one complete cycle the output voltages will appear as shown in fig
smoothing capacitor:
after rectification the dc voltage filtered through smoothing capacitor. the smoothing capacitor converts the full wave rippled output to the smooth DC output voltage.
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where
I load = the dc load current in amps.
f= frequency of ripple.
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ReplyDeleteThanks Nice Concept to Full Wave Rectifier
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