Inductor design for SMPS

[aneesmohammed]

Hello all !!
I have started building my own inductors as per my need for DC DC Converters and i stuck with a lucid doubt. If my current through inductor is 10A and i found that a heavy 12SWG copper conductor can handle it but bulky and difficult to wound on a E42 bobbin.....So my question is can i used a 2 or 3 conductors of lower ampacity (say 4A each) in parallel .....IS it affect my inductance value as it effects as 3X number of turns ??

 

[thannara123]

I used in likwise in inverter transformer ,i think we can use multple parallel conductor to gain the current

 

[cupoftea]

Use multi strand coil yes...it is like litz..yes they are indeed in pllel...but overall inductance is same as if you use one strand...because as you know, they are all on the same core. They are coupled inductors in plell. Not like several separate inductors on different cores....so the "normal" pllel inductor equation doesnt apply here.

 

[D.A.(Tony)Stewart]

Multi stranded wire will lower the gauge but maintain the same L/R=tau ratio depending on initial magnet wire gauge. These can be pre-made and maybe tau= 1 to 10 ms