Types of Inductors and Transformer
AIM- To study different type of inductors and transformer
INTRODUCTION- Inductors (coil) or broadly classified as below.
Properties of coil -:
Application of coil -:
INTRODUCTION- Inductors (coil) or broadly classified as below.
- According to core material
- Air core coil - this have air has a core material but event material this coil which are wound magnetic material like ceramic, plastic, are also called air core coil.
- Iron core coil – Iron is used as core material
- Ferrite core coil – Ferrite is used as cored material.
- According to frequency range.
- Audio frequency coil - This are generally iron cored coil known as chokes and used in low frequency circuit.
- Radio frequency coil – This are small coils of one turns used in radio frequency circuit.
- According to winding – coils have different type of winding such as signal layer winding and multi stage winding .
- Variable inductor – inductance can be varied either by tapping or winding or by baring core material this type of variation is called as permeability turning.
Properties of coil -:
- It store the energy in the form of electromagnetic field.
- It passes D.C. or low frequency.
- It opposes A.C or high freq.
- It opposes any sudden change in current .
Application of coil -:
- Used in filter circuit.
- Used in tuned circuit.
- Used in transformer
- Used in to produce magnetic field e.g. relay speaker and electromagnet.