LESSON ON HALF WAVE RECTIFIER / FULL WAVE RECTIFIER / BRIDGE RECTIFIER
A Rectifier converts AC (Alternating
Current) in to DC (Direct Current ). Generally Diode is used as
rectifier. Rectifier uses the property of Diode to allow flow of
current in only one direction.
Project on Half Wave Rectifier
Project on Half Wave Rectifier
Half Wave Rectifier : This
is simplest form of rectifier. It uses single diode. Output is half
cycle of the waveform so efficiency is half. Ripple voltage is high. It
is cheap, simple and easy to construct. Half wave rectifier is widely
used in mobile charger or at secondary coil of SMPS.
Full Wave Rectifier :
Full wave rectifier circuit rectifies the AC in both directions
providing a DC signal for each AC cycle by using two or four Diodes. For
two diode rectifier circuit it is necessary to have center tap
transformer. Four Diode rectifier also called Bridge Rectifier is widely
used. Output efficiency of full-wave rectifier is double of that of a
half-wave rectifier. Ripple voltage is low and of higher frequency
Project on Full Wave Rectifier
Common diodes used in this application are the 1N4007 Diode
In order to produce steady DC from a
rectified AC supply, a smoothing circuit or you can say a filter is
required. We have used electrolytic capacitor of value 1000 Mfd/25V as a
filter.
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