step up does what it says, itsteps the voltage up and step down does the opposite, transformers are rated in ratios you will need a 2:1 ratio which means whatever goes in half comes out you will also need to checks voltage and current ratings but that just the just of things oh yeah what application is this going to be used for if u dont mind me asking
There is no physical difference, it's just how you are using the transformer. You either step up or step down whatever your supply voltage is.
there is a physical diff its just has to do with the primary and secondary windings on step up the primary has less than the secondary and on step down the secondary less than the primary
Think about it ecknight you have a transformer 2:1, primary 1000 turns and the secondary 500 turns. You feed the primary with 220v, at the seconary you get 110v. You just stepped the voltage down. Now you have the same transformer 2:1, but you feed the seconary this time, you don't have 220v. So you supply 110v to the seconary, you will now have 220 at the primary. You just stepped up the voltage up. Like I said there is no physical difference bettween the 2, it's just how you wire it.
my bad i am thinking of using them in actual circuits where u use diaodes to make sure that it can only be used one way after i typed it i realized that what i said didnt make sense
