Guru
Joined: 17/10/2017
Location: BelgiumPosts: 461
| Posted: 04:49am 13 May 2024 |
That 650 core gives 405nH/n^2, formula is L=405 X n^2
130 windings will give you almost 7mH, 82 windings wil give you 2.7mH
Inductance will drop a bit when loaded but the core you have is a monster so this will be peanuts.
If your not rewinding it, you could do like mike suggested, wind over the existing windings or use 82 (41+41 in series) windings this will be good for testing. Later on you can try something different this will have probably higher no load losses Vs a smaller (optimised one)because it's 5kg.