carpenter
Full Member level 6
I need to wind the toroidal coil
T130 ironpowder 7 theard, current 2A, frequency 15MHz
My first choice and practically proven solution is use magnet wire 1x1,2mm
+ simple solution
+ mechnically stable
+ the wire holds well on the toroid
- higher AC resistance (Skin Effect Depth on 15MHz 17um)
second option
Use 4x0,7 wire,
+ the resistance drops to half
- I do not know how far the parameters will worsen (proximity effect etc...
third option
use RF litz wire 120x0,1mm
+ low resistnce
- soft and so worse hold on the toroid
I do not know whether other losses will outweigh the savings on DC losses and higher coil costs
Do you have any practical examiners, what is worth it?
T130 ironpowder 7 theard, current 2A, frequency 15MHz
My first choice and practically proven solution is use magnet wire 1x1,2mm
+ simple solution
+ mechnically stable
+ the wire holds well on the toroid
- higher AC resistance (Skin Effect Depth on 15MHz 17um)
second option
Use 4x0,7 wire,
+ the resistance drops to half
- I do not know how far the parameters will worsen (proximity effect etc...
third option
use RF litz wire 120x0,1mm
+ low resistnce
- soft and so worse hold on the toroid
I do not know whether other losses will outweigh the savings on DC losses and higher coil costs
Do you have any practical examiners, what is worth it?