Question
Download Solution PDFWhich of the following types of inductors is suitable for high-frequency applications?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- Ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such as inductors are formed.
- It is used for high-frequency applications for its properties of high magnetic permeability coupled with low electrical conductivity (high resistance)
- It helps in preventing eddy currents
The difference between the iron core and ferrite core inductors:
|
Iron core inductor |
Ferrite core inductor |
|
The iron core inductors used in the filter circuit and AF application. |
Ferrite core inductors used at high and medium frequencies and also as ferrite rod antenna for MW band receivers. |
|
The iron core inductor is required a laminated iron core to reduce eddy current losses. |
It does not require laminated ferrite core to reduce eddy current losses. |
|
It has large eddy current losses. |
It has lower eddy current losses. |
|
Iron core inductor has a low Q factor. |
Ferrite core inductor has a higher Q factor. |
|
Iron core inductors large in size. |
Ferrite core inductors smaller in size. |
|
It has a low operating frequency. |
It has a higher operating frequency. |
|
Iron core inductor has lower inductance value. |
Ferrite core inductor has higher inductance value. |
Important Points:
- The transformer core is normally made up of silicon steel.
- For low-frequency operations, the core used is made up of silicon iron.
- For high-frequency operations, the ferrite core is used.
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