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19th June 2005, 09:43 #1
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what does an inductor do
Hi,
Can anybody tell me what is the function of an inductor and when and how do we used it in circuit. In dc analysis what is the inductive reactance ( XL) or resistance of a inductor. Hope you can explain from ac and dc side of view.Thanks

19th June 2005, 09:43

19th June 2005, 09:50 #2
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inductor function
On Inductor Basics goto:
http://en.wikipedia.org/wiki/Inductor
http://powerelectronics.com/mag/504PET20.pdf#search='inductorbasics'
Regards,
IanP

19th June 2005, 09:50

19th June 2005, 13:50 #3
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function of inductor
basically an inductor consists of a number of coils
and based on the laws of EMI it produces a flux which opposes the change in current
i.e. if current is increased it tends to decrease it by producing opposite flux and vice versa
if an inductor is placed in an ac circuit it acts as +ve impedence i.e. Z=+jωL
in a dc ckt, it initially acts as open circuit but gradually becomes shortcircuit

19th June 2005, 13:50

19th June 2005, 14:45 #4
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what does inductor do
The inductor is a coil that can be used in frequently in oscillators circuits and filters in addition to the capacitive, and when used in ac circuit it has an
XL=WL=2*pi*F*L so due to the equation XL increase withe increase of frequency and decrease with he decrease of frequency, but in a DC Circuits it acts Like Short circuit at the final state

19th June 2005, 14:54 #5
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function of an inductor
Inductor is a cicuit element which stores electrical energy in the of magnetic field.
Inductive reactance =jwL where w=2*pi*f .so when f=0 ie(pure d.c) then xL=0 ie inductor behaves as ashort cicuit.but as frequency increases it opposes the flow of current.
hope u will get some idea.

19th June 2005, 14:54

22nd June 2005, 12:21 #6
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what is the function of a inductor
A inductor can be use in a DCDC converter.
best regards
Originally Posted by huji

22nd June 2005, 12:32 #7
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what does an inductor do?
Hello;
A kind of inductor that is used in RF circuits is RF choke. In RF circuits, conductor traces on the PCB are used for implementation of inductors, for example I can refer to spiral inductor.
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