Comparison between Half- wave & Full-wave Rectifier

⦿ Chapter :: Semiconductor ⦿ Topic :: Comparison between Half-wave & Full-Wave Rectifier ......
⦿ Definition An electronic circuit which converts half cycle of alternating current into direct current is known as half-wave rectifier.
An electronic circuit that converts the complete cycle of alternating current into direct current is known as full-wave rectifier.
⦿ Number of diodes required :: Half wave rectifier requires only one diode. The number of diodes required in a full-wave rectifier are as −Center-tapped FWR requires two diodes.
Bridge FWR requires 4 diodes.
⦿ Rectified cycles of AC In half wave rectifier, only half cycle of AC (either positive or negative) being rectified. Full wave rectifier rectifies the both positive and negative cycles of AC.
⦿Output frequency For half wave rectifier, the frequency of ripple output is equal to the input supply frequency, i.e., "f". The output frequency for the full-wave rectifier is double of the supply frequency, i.e., "2f".
⦿ Maximum efficiency of rectification (for sinusoidal AC) :
For half wave rectifier, the maximum efficiency of rectification is 40.6%. The maximum efficiency of rectification for a full-wave rectifier is equal to 81.2%.
⦿ Ripple factor (for sinusoidal AC) The ripple factor for half-wave rectifier is 1.21. The ripple factor for full-wave rectifier is 0.482.
⦿ Form factor (for sinusoidal AC) The form factor of half-wave rectifier is 1.57. The form factor of a full-wave rectifier is 1.11