Once you find the watt amount from the ac volts x amps you can divide the watts by dc volts to get dc amps plus 15.
Convert ac fan to dc.
Divide the ac voltage by the square root of 2 to find the dc voltage.
At half an amp per fan you could hook up 24 fans in parallel.
Since an ac power supply sends voltage in alternating waves dc voltage will be lower once you convert it.
Write out the formula v ac 2 and replace v ac with the ac voltage you found with your multimeter.
If you search for power supply you will find many.
If by convert a fan you mean turn an existing ac fan into a dc fan.
What you need is called an ac to dc inverter.
Ac motors and dc motors are internally completely different one can t be converted to the other.
It s okay to buy a power supply that can source up to 12 amps at 12vdc.
If you need some more help let me know what the application you need a dc motor for and i ll see if i can t help out more.
It can t be done.
Converting a 240v ac fan to 12v dc.
You can t just feed a dc motor ac.
220v ac from 12v 90 amps car alternator 1000w diy duration.
A transformer will not give you dc.
It will give you ac.
In this project i combine the two to make a workshop fan that runs of 12v dc.
Convert ac electric fan 220v to 12v dc tagalog tutorial duration.
The only thing you can do is replace your existing fan with a new dc fan.
Page 1 2.
Without the efficiency loss ac or dc watts will always be the same because it is total power.