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Yes. The basic formulas are the same, but material constants change and there may be a gap, even of you can not see it.
Hi there,
My favorite cores where toroids and a while back i wrote a program to
calculate the turns of wire that would fit in the core window of a toroid
and actually draw it to a file also. It's kinda cool to see this drawn out
so here's a picture of a core filled to the max with 1080 turns of wire.
Part of the goal in designing a toroid transformer or inductor
is making sure the turns will fit in the window area.
What are you trying to do?
As far as the calculations are concerned it is far easier to get a toroid that has the current rating that you need for one of your coils and hand wind on the shorter winding of a transformer. You will not be able to get a safety rated transformer with out special wire, but you can readily get a functional one.
Dan
Well that depends on the core material and can not be simply stated.i am trying to wind a toroid transformer for my audio amplifier the transformer ratied at 800VA 220v primary 40v-0-40v center tap at 20 ampere. by the way, what is the ideal flux density for toroid core transformer?
Well that depends on the core material and can not be simply stated.
I tend to think you would be better off just buying a transformer as stuff that size is not readily available. Do you already have a toroid?
Dan
I agree with Ubergeek63. You need first to know what the core material is. How did you determine that your 'core' is a magnetic material intended for 50/60 Hz transformers? Determining the cross sectional area is possible with simple geometry.
Your target of 800VA may be impossible with a core of only 4.5 inches OD. It all depends on the material.
no! i dont want to buy.. i want to learn, i hav already the toroid core which measures of about 4.5 inch OD my problem is on how to select the proper or ideal flux density for toroid and also determining the area of toroid
no! i dont want to buy.. i want to learn, i hav already the toroid core which measures of about 4.5 inch OD my problem is on how to select the proper or ideal flux density for toroid and also determining the area of toroid
hello,
the ideal flux density for a toroid is from 1.6T to 1.8T while the E,I lamination is limited only to 1.2T- 1.4T. what is your core material made of?