Just need a little advise, i am not that much experienced in electronics that is why i am compelled to ask this.
Does it matter whether i wind primary and feedback beneath secondary or above it? Will it make any difference?
The transformer i am talking about is for cfl driver.
Any order will work. It's desirable to have the primary closest to the core.
Choose other winding order to 'minimize lumps".
pick: 1000T 20 AWG pri. 3 T 18 AWG sec and 200 T 18 AWG sec. You would want the 3 turns spread out over the core, so it would not be a good choice for the second layer.
For a step-up transformer on a toroid core, it may be easier to wind the secondary first. We don't know that this is going to be a toroid core, of course.
Any order will work. It's desirable to have the primary closest to the core.
Choose other winding order to 'minimize lumps".
pick: 1000T 20 AWG pri. 3 T 18 AWG sec and 200 T 18 AWG sec. You would want the 3 turns spread out over the core, so it would not be a good choice for the second layer.
Nope its ferrite core is "E" shaped. You know those little ones.
I have exactly like this one.
Only difference is mine has 4 pins on one side and two on the other side.
I usually wind the highest current winding on first, irrespective of it being primary or secondary, you want the highest current winding to be closest to the core so losses are minimal.
For step up the primary current is higher, stepdown the reverse.