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Half wave rectifier vs full wave rectifier | Difference between half wave rectifier and full wave rectifier

This page on Half wave rectifier vs Full wave rectifier provides difference between half wave rectifier and full wave rectifier

As we know for large supply requirements, power supply units operated from the AC mains are employed. In power supply AC will be converted into DC using the process called as rectification.

Circuit used for rectification function is referred as rectifier. There are two types half wave rectifier and full wave rectifier based on their action on the AC input.

Halfwave rectifier

half wave rectifier

The Halfwave rectifier circuit is depicted in the figure-1. For practical representation load R is considered in place of actual electronic equipment.

During forward bias condition(i.e. positive half of input cycle), Diode D conducts and will produce pulse of current. This produces voltage across R which will have same value as of inpur voltage provided forward resistance of diode is negligible compare to resistance R.

During reverse bias condition(i.e. negative half of input cycle), diode D is reverse biased. This results into no current in the circuit and voltage across R is Zero.

Fullwave rectifier

full wave rectifier

In the case of Fullwave rectifier of type center tapped, both the halves of input AC voltage produce the current pulses. During the first half cycle, D1 gets forward biased and D2 gets reverve biased. Hence D1 provides current at the output. During the second half cycle, D1 gets reverse biased and D2 gets forward biased and hence D2 here provides current at the output.


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