ajsons Posted December 23, 2005 Share Posted December 23, 2005 I thought positions 4 and 5 of the attached picture are O.K. Al, didn't you use this coil placement (4 and/or 5) in one of the early ESNs? The other question I have, and the answer is probably in this picture ....Let's say I needed a 2.4 mH inductor but have a 2 and a .4mHy (just an example), same wire gauge . I know that inductances are additive when series connected, but how do I mount them relative to one another? Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted December 23, 2005 Share Posted December 23, 2005 ajsons, Actually 4,5,6 and 7 are very GOOD way to mount two coils to reduce coupling. I agree with your other conclusions. If the winding of two clios are turned 90 degrees to each other and on-center there will be vertyally no coupling. Sitting one on top the other like your last diagram is the maximum coupling you can get between two coils. Al K. Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted December 23, 2005 Share Posted December 23, 2005 Here is how to mount 3 coils close to each other without coupling. Al K. Quote Link to comment Share on other sites More sharing options...
ajsons Posted December 23, 2005 Author Share Posted December 23, 2005 I knew it. I found that picture on the internet, I lost the link, but I had the feeling that something's wrong with it. Thanks a lot, Al. Quote Link to comment Share on other sites More sharing options...
ajsons Posted December 23, 2005 Author Share Posted December 23, 2005 How about iron core or ferrite inductors? What kind of arrangement do you suggest? Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted December 23, 2005 Share Posted December 23, 2005 Here the side view of the three. Al K. Quote Link to comment Share on other sites More sharing options...
Al Klappenberger Posted December 23, 2005 Share Posted December 23, 2005 Iron core inductos work the same way but are less critical because thier flux is somewhat more concentrateed internally. The odd ball is the toroid core inductor. You can mount those any way you like (within rason!). The flux is virtually all inside like a big race track! Quote Link to comment Share on other sites More sharing options...
ajsons Posted December 23, 2005 Author Share Posted December 23, 2005 I don't have much room to place my coils and my only option is position 4. And I wasn't sure if it was ok. Now I know. Thanks a lot, Quote Link to comment Share on other sites More sharing options...
Deang Posted December 23, 2005 Share Posted December 23, 2005 Of course based on some of the things in the other thread, one might want to give some careful consideration as to how close to the iron cores they place the air cores. I mean, if you don't want one placed up against an aluminum can you might want to make sure they're at least 200 or 300 feet from any iron cores. Quote Link to comment Share on other sites More sharing options...
ajsons Posted December 23, 2005 Author Share Posted December 23, 2005 That would give me more than enough space for Tootsie rolls! Quote Link to comment Share on other sites More sharing options...
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