52613 sfw356645eh5ah6j75
Member
hi there, i'm trying to make a 100W sepic converter but the EE core i bought is saturating so i need to measure the permeability to be able to calculate the rest of the numbers.....the problem is that the place where i bought it only has the inductance index (which i forgot which one was mine's from the list :/ ), no brand, no datasheet, no nothing.
I read in a pdf that dividing the inductance index of the core by the value from the "air" core gave the permeability by i got something like 66 which is crazy so something must be wrong.
I wound 100 turns and got 99,2µH, with air and 6559µH with the ferrite core, 9.92nH/N² and 655.9nH/N² respectively and doing the math gave µ = 66 which doesnt make sense at all
The thing is, I have the core, an oscilloscope and a LCR meter, anything i can do to get the permeability or any usefull value to calculate the rest?
thanks in advance
I read in a pdf that dividing the inductance index of the core by the value from the "air" core gave the permeability by i got something like 66 which is crazy so something must be wrong.
I wound 100 turns and got 99,2µH, with air and 6559µH with the ferrite core, 9.92nH/N² and 655.9nH/N² respectively and doing the math gave µ = 66 which doesnt make sense at all
The thing is, I have the core, an oscilloscope and a LCR meter, anything i can do to get the permeability or any usefull value to calculate the rest?
thanks in advance
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