# Transformer design reference

1. Jun 28, 2010

### mfc5200

Does anyone know of a good link to basic transformer design? I keep seeing the standard equations but they don't seem like much help. I can't seem to find any good guides for designing the most basic transformer

For example, I will see equations relating the ratio of turns to the ratio of voltages, but does that mean I can go from 1 turn to 2 turns instead of 100 turns to 200 turns? I don't think that is the case.

Again, a most basic guide would be good, one that assumes no losses, etc is fine.

2. Jun 28, 2010

### dlgoff

Last edited by a moderator: Apr 25, 2017
3. Jun 29, 2010

### mfc5200

haha, yea I actually find those slides when google searching, but they seem a little too complicated for me (I'm a M.E.). I was hoping for some really basic design slides.

An analogy in fluid mechanics would be to assume no losses with the fluid being isentropic, you can start with that, and then later fine tune your solution to take into account viscous drag, etc etc.

So far the best I've found is this, with regard to basic design.

http://ludens.cl/Electron/Magnet.html

I think I might have figured out my problem is though. Perhaps I will post later as to what the problem is, and what I think the solution is and why.

4. Jun 29, 2010

### Staff: Mentor

http://en.wikipedia.org/wiki/Transformer

As for the number of turns, you need enough turns for the magnetizing inductance to present a reasonable impedance to the driving voltage source, and you don't want so many turns that the wire resistance or the leakage inductance or the winding capacitance become large and obnoxious.

5. Jun 30, 2010

### Mike_In_Plano

Transformer design is an art as much as a science. Between keeping up with materials, proccesses, cost, and the fundamentals, you're better off finding a designer. I live in the Dallas area, and there's a thriving community of these guys. I suspect any land of invention will have some transformer houses.

6. Jul 5, 2010

### hmparikh1990

You can refer "transformer design.." book.
By M.G.Say.its very nice book.

Last edited by a moderator: Jul 6, 2010