80Views2Replies

# ​I want to produce DC 12V 5A from AC 12V 1.5A. Answered

I have a12v 1.5A  transformer.
​I want to produce DC 12V 5A from AC 12V 1.5A.
Is it possible?
If its possible than tell me HOW?

Tags:

## 5 Replies

jfryar30272 (author)2017-08-25

Sorry, but it can't work. For simplicity, let's change the 12V 1.5A AC to 18 watts, and the 12V 5A DC to 60 watts. You will blow up your transformer if you try to pull 42W over the limit.

steveastrouk (author)2017-08-13

No, it isn't possible

rickharris (author)2017-08-13

Your grasp of electricity isn't good enough. Voltage, current and resistance are linked (Ohms Law) changing one changes the others.

You can't practically increase the output current without having more input current. Buy a new transformer.

Downunder35m (author)2017-08-12

If that could work we would not need power plants providing us with overpriced electricity.
It is the same for a plank of wood: No matter how much you cut off, it will always be too short ;)

Jack A Lopez (author)2017-08-12

The usual recipe for a DC power supply, from low-voltage AC from a transformer is:

transformer + rectifier + filter capacitor + linear voltage regulator