Transformer

[Light]

As Transformer is used to step up/down according to the turn ratio. what is the maximum limit of stepping up the 12vots AC. ?
if there is any general rule regarding the limits of stepping up or down kindly share it.

 

[duke37]

I know of no general rule. A high frequency is beneficial since fewer turns can be used so more insulation is possible Many turns mean little insulation and very fine wire so high resistance, also winding capacitance becomes important.

Look at the construction of TV line output transformers, car ignition coils and spark generators (Tesla). Most of these devices use much more than 12V input. Electric fences produce about 5kV but the transformer has an input voltage of 300V or so.