Almost all household appliances and electrical gadgets work on DC circuits, meanwhile plugged on to an AC power source. Take your Smartphone for reference, which has a DC circuit built in it. It is charged by plugging it on to the wall socket, which is obviously an AC power outlet. Even though, by logic, the alternating current would damage the whole circuit, the smartphone remains intact. So you need to transform AC into useable DC. That’s where Rectifier comes into play. The rectifiers are electrical circuits which are used to convert AC from our general electrical system into DC. And the process, rectification involves the conversion of the Alternating current (AC), which changes its direction periodically, into Direct current (DC), which always flows in a single direction. Based on how the circuit carries out rectification, there are mainly two types of rectifiers viz. half wave rectifier and full wave rectifier. Half wave rectifier converts only the half of the AC wave into DC signals whereas full wave rectifier converts complete AC signal into DC. The application of rectifiers are broad and extensive so as to be used in electric welding, soldering iron, mosquito repellent, signal peak detector in AM radio and even in the traction mechanism of trains. Read further to understand the mechanism and application of rectifiers. Please see the slides.

Rumina Shams

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