mini transformer and fan blade design guide?

can anyone make me a mini transformer? ~.5-1 inch? (smaller would work too but i am not expecting a miracle) I am not sure how you would make one this small. Making a larger one is easy but making this one this small is beyond me. Has anyone seen one this small? (or if you can buy one that small) I wanted to make one to overvolt an internal case fan. 5v to 10v/12.5/15V. I am going to work on the idea of cooling the brushless fan so it can run that fast. From what I have read up on the only problem with running a brushless fan at a high voltage is cooling. (hence when i overvolted my g51j case fan it burned out) If the wires and stuff can be cooled where it doesn't over heat you can make to go as fast as possible so getting a 5v brushless fan at 10v or 15v is dependent of cooling it. If someone can do this i can pay you depending on how hard it is if your not willing to support a fun little modification. And a DIY video would be great. Want to find a way to boost the power to an R4 fan to either support a better GPU/XM chip. R4 is much more limited than a m18x in cooling. Also i am looking into the idea of building a new brushless fan instead of using built in one. Been taking apart some spare case fans and stuff. Going to pull out R4 fan down the road when i put Heat-Spring into it to test how that works and look at the internal fan and see what can be done to boost it.

Also does anyone know of a site/book that talks about fan designs and how fans/fan blades pull/push air? I know blades are specifically designed to move air in a certain motion but i don't know what the actual designs do.


File:Transformer3d col3.svg - Wikipedia, the free encyclopedia

 

so no one knows how to make a mini transformer? or where to get one or something similar?

 

Transformers only work with AC while internal computer voltages are all DC. What you'd need is a DC-DC converter that increases voltages a.k.a. step-up/boost converter. Among the smallest DC-DC converter would be a charge pump but most of those have limitations in both the delivered power and the step up factor. A one stage charge pump commonly increases the voltage to twice the input, a two stage to four times the input voltage etc.

What you have to know is how much power is required in your project to design the converter. Voltage and amperage that is.

Edit: oh and the available space the converter can reside in would be nice too.

 

interesting i thought it worked for AC and DC. Go you have a link to something like that? i have never heard of it. Do you think one could made small enough to fit into a laptop?