Electrical Rectifier

What is rectifier??????

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification.

What are AC and DC?????

AC stands for Alternating current

Alternating current is the current which changes its polarity or direction simultaneously

DC stands for Direct Current

Direct current is the current which does not changes its direction or polarity

AC and DC

What is a transformer????

Transformer is an apparatus for reducing or increasing the voltage of an alternating current.

There are two types of transformer :-

Step Up transformer

Step down transformer

In our Project we have used a “STEP DOWN” transformer

Transformer

What Is A Diode?

-Diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.

-In our project we have used two diodes parallel connected to each other.-Its symbol is-

Cathode Anode

Diode

What is a Capacitor?????????

- Capacitor is a device used to store an electric

charge, consisting of one or more pairs of conductors separated by an insulator.- We use a smoothening capacitor in our project to make output DC current smooth.- It has symbol :--Electrolytic capacitors -Disc capacitors

Capacitors

Rectification

Our Circuit Diagram

C

Output 1 Output 2

Working of Our Circuit

Step down transformer

220V AC to 12V AC

Rectification with the help

of diode

DC current Generated but

not smooth

Smoothing Capacitor

Smooth Direct Current

Our Model

Applications of Rectifier

There is a wide range of rectifier used in mobile chargers, adapters, etc.

Applications of Rectifier

Rectifiers are also used -for detection of amplitude modulated radio signals.-Rectifiers supply polarized voltage for welding.

Application of rectifier

Rectifiers can run our projects without batteries..