DIY inductors

[miguel2]

Hi,

Lately I have been thinking in adding some inductors to my ZenV4 PSU, instead of filling it up with expensive caps. But inductors, specially the air core ones, seem to be just a bunch of wire turned around some kind of support (plastic).

So if I get some meters (feet ) of wire and wound it carefully around some support does it become an inductor? How much wire (lenght) with which diameter (2 amps continuous) and which inductor diameter would be necessary? And which precautions would have to be taken?

Miguel

[Bricolo]

there's a formula that gives you the inductance, in function of the diameter and the number of turns

but I don't remember it


for the gauge, use one that is capable of 2Amps

[peranders]

You must ask yourselves a couple of questions first:

1 How much DC current do I have?

2 How much ripple current do I have?

3 How much inductance do I want?

These questions must be answered first, then make the inductor.....

[FrankDIY]

http://www.colomar.com/Shavano/inductor_info.html

Enjoy!

[Sch3mat1c]

I think someone forgot about iron here..

Tim