Transformer design

Discussion in 'General Electronics Chat' started by SVS, Mar 12, 2014.

Aug 16, 2012
89
4
Hi everyone,

I have a few doubts about transformer design.

1.How do I calculate the AL value(inductance factor) of a transformer core .[ ferrite in my case ].?

The Al value is given in the data sheet is for a set of UI ungapped core.
What if I have to stack 2-3 cores together?
How will the AL value differ?

2. Number of turns calculation:
step up voltage from 300 V (square wave ) to 5.7 KV (sinuous ) rms .

So my ratio N1:N2 is 1:19

N1= (Vin× T/2)/ (B*Amin)

Vin=300V.
I max = 4 A
f=30 KHz . T = 3.3*10^-5
B = 0.5 T (Given in data sheet)
Amin= 1800 mm^2

So the value computed from this formula is my number of primary windings or the minimun number of primary windings?

How could I calculate the number of primary windings ?

I have also attached the datasheet of the ferrite core..

Thank you ..

File size:
257.1 KB
Views:
9
• Core datasheet.pdf
File size:
215.3 KB
Views:
10
Last edited: Mar 13, 2014