[moved] How to increase output voltage of transformer

[adnansarwar2050]

I have a 220 to 12V step-down transformer i want to get 18V output from its secondary. Which winding should i reduce (primary or secondary) to convert it to get 18 volts at the output.

 

[sharikbaig]

Re: How to increase output voltage of transformer

I suggest you to see this https://www.brighthubengineering.com/diy-electronics-devices/96783-designing-your-own-transformer/

 

[FvM]

Re: How to increase output voltage of transformer

Reduce winding doesn't work, you need to increase the secondary number of turns by 50 %.

 

[xenos]

In case you need only the DC increased, you have other solutions:
a) if you have 3 pins output on the transformer, then it can make up to 24Vac
b) you could use voltage doubler (if you do not want too much current) with diodes_capacitors
c) you could use step up SMPS