Difference between half wave rectifier and full wave rectifier

Before we going to learn the Difference between half wave rectifier and full wave rectifier let us first know about rectifier.

What is a Rectifier ?

The process of converting an alternating current into direct current is called rectification. The device used for this purpose is called rectifier.

Half wave rectifier

A rectifier which conducts only during the positive half cycle of input a.c. supply is known as half wave rectifier.

Full wave rectifier

The rectifier which conducts current, during positive and negative half cycle of input ac supply is known as full wave rectifier.

Difference between half wave rectifier and full wave rectifier

Half wave rectifier Full wave rectifier
In half wave rectifier only one diode is used. In full wave rectifier two diodes are used.
Every positive half cycle is rectified. Both positive and negative half cycles are rectified.
Electric current is not continuous. Electric current is continuous.
In the negative half cycle of ac rectification will not take place. In the negative half cycle of ac also rectification will take place.
Efficiency is less. Efficiency is high.
Ripple is high. Ripple is low.