Question:

Transformer modding?

by  |  earlier

0 LIKES UnLike

Hey there i have a step down transformer of 230 to 24 volts (3A output). I need to convert it to 230 to 50 volts (3A output and Center tapped 25-0-25). I have measured resistance on both sides. It is avg 360 and 30 ohm respectively(step down). So can it converted to this one?

These type of transformers(Center Tapped 25-0-25) are not ready made available. Electronics shop in my country don't keep that product which is not a demand of college/university student.

Please do not suggest any website products. and sorry for bad English.

 Tags:

   Report

3 ANSWERS


  1. With no tappings made available for the transformer, you may have to rewind the transformer in which you can incorporate your design values.


  2. Since 50V @ 3A is about twice the power of 24V @ 3A, not only would you have to rewind the secondary, you would probably have to rewind the primary with larger wire, then the core would probably be too small.

    If you can get another 24V transformer, you might consider connecting two of them together, primaries in parallel and secondaries in series, with the connection between the two secondaries being your center tap. The voltage (48) would be a little less that your desired 50V, but only a little

  3. The transformer that you have can not be rewound to provide 3 amps at 50 volts. That would more than double the primary current and overheat the transformer. If the secondary winding is either on top of the primary winding or beside it rather than under it, you could remove the secondary winding and count he turns. To go from 24 volts to 50 volts CT, you will need 2.06 times as many turns with a tap at the half way point. The wire size will need to be reduced to about half the size. The available current without overheating will be about 3/2.08 = 1.4 amps. If you need 3 amps, buy a 230 to 24 volt transformer that is rated 150 VA or 6.26 amps at 24  V.

    Edit 1

    The two transformer idea is a lot easier. Why didn't I think of that?
You're reading: Transformer modding?

Question Stats

Latest activity: earlier.
This question has 3 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.