Types of inductor Of Electronic Components

  Types of inductor Of Electronic Components

• The following are the types of inductors: 

1. Air core inductor, 
2. Ferromagnetic core inductor, 
3. variable inductor

• Air core inductor: It is an inductor which has its coil wound on non­magnetic material like plastic or ceramic and there is only air present in between the windings. 
• Ferromagnetic inductor: It is an inductor which has its coil wound on a magnetic core made up of ferromagnetic or ferromagnetic material.

 Laminated core: It is a type of ferromagnetic inductor whose core is made up of thin steel sheets or laminations. 

Ferrite core: It is a type of ferromagnetic inductor whose core is made up of ferrite. 

Torroidal core: It is a type of ferromagnetic inductor where the coil is wound on a straight rod shaped core. 

Choke: It consist of a coil of insulating material wound on a magnetic material.

• Variable inductor: It is made up of ferrite magnetic core which can be slid or screwed to change inductance. 

Features of inductor:-

• All inductors are magnetic materials. 
• They have a path of ferromagnetic material. 
• The path is closed so that the magnetic field lies in the ferromagnetic material. 

Specifications:-

• The value of inductance is measured in Henry. Inductive tolerance is usually in the range of ­5% to +20%. 
• Maximum current rating which specifies the maximum current that can pass through the coil. 

Applications:-

• Inductors are used in

1. Signal Processing 
2. Filtering out some frequencies 
3. Removing hums from DC output