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4.5625 1 1 1 1 1 Rating 4.56 (16 Votes)

Online calculators

Here you can see the formulas that the calculator uses.

Ferrite toroid calculation:

On-line ferrite ring core inductor calculator
ferrite toroid calculator
ENTER THE INPUT DATA:
Select units:   AWG →   SWG → 

L – Required inductance
D1   – Outer diameter of ring
D2   – Inner diameter of ring
h   – Height of ring
µ – Relative magnetic permeability
d   – Diameter of wire    

Calculate
RESULT:
N – Number of turns
Lw   – Required length of wire
Clear all

*Necessary for winding wire length with a reserve 10cm on the leads.

You can determine the unknown permeability of the toroid core by the following calculator.


Another similar calculators:

Comments   

John G2
0 #1 John G2 2015-08-19 18:31
Hello,

I am a beginner in electronics, so i try to learn. I am making now a voltage booster with a PWM. I need 12 till 36volts. After blowing up a lot of components i managed to get a voltage from between the 40 and 100 volts. But when i lower the windings the voltage goes up, and i thought it should go down then. What do i do wrong? Or must i make more windings? I hope somebody can help me out with this because the circuit finaly works, just the voltage i am fighting with.
Quote
Vindi
0 #2 Vindi 2015-12-25 23:11
Quoting John G2:
Hello,

I am a beginner in electronics, so i try to learn. I am making now a voltage booster with a PWM. I need 12 till 36volts. After blowing up a lot of components i managed to get a voltage from between the 40 and 100 volts. But when i lower the windings the voltage goes up, and i thought it should go down then. What do i do wrong? Or must i make more windings? I hope somebody can help me out with this because the circuit finaly works, just the voltage i am fighting with.


When you remove windings you will have a lower inductance and therefore the current will be higher. If you want to lower the current you must add more windings to the toroid core. (Also a newbie!)
Quote
Praseed kumar
0 #3 Praseed kumar 2016-03-26 09:00
I used ks184026a sundust core. I need inductance---0.210mh.how much leangth using winding wire.how i select wire guage .please help me
Quote

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