Multilayer coil inductance calculator
The most of the similar calculators work using Wheeler's formula, which has acceptable accuracy only when calculating the "optimal coil". Also, these calculators allow calculating just a ready-made coil. This calculator allows calculating the number of windings of the multilayer coil at the design stage. Inductance is calculated by the accurate algorithm using Maxwell's equations with elliptic integrals, see more... You can select measurement units - mm or inches, and also AWG or SWG wire number - the wire diameter will be determined automatically. You can download the cross-platform app Coil64 to calculate multilayer coil offline. For audio system filters, a Brooks coil is used with an optimal winding geometry. Such coils are calculated by the separate module of the Coil64 program.
Calculate number of turns
ENTER THE INPUT DATA:
| Select units: |
| L | = | – Required inductance | |
| D | = | – Diameter of coil-former | |
| l | = | – Length of winding | |
| d | = | – Diameter of wire without insulation | AWG |
| k | = | – Diameter of wire with insulation | Automatic |
| N | = | – Number of turns |
| n | = | – Number of Layers |
| c | = | – Winding thickness |
| Lw | = | – Required length of wire |
| Ω | = Ohm | – DC Resistance of coil |
Copyright ©2014 Valery Kustarev
Other calculators:
- Multi-Layer Coil Inductance Calculator by Robert Weaver
- Multi-layer air core inductor on a rectangular former
You have to correct and pre-calculate dimensions for rectangular or square former. You can see how to do this in General Notes of Robert Weaver's calculator:
electronbunker.ca/InductanceCalcML.html
Thanks a ton!