I'm new in electronic and electrical circuits, so maybe my question will be naive.
I have an electrical transformer that gets 220VAC as an input and gives 25VAC as an output, and can produce 20amp current.
I connect the 25VAC output to diodes bridge with capacitor(3300uF - 25v) to the positive and negative pins to eventually get 25VDC. What I want is to reduce the 25VDC to 17VDC, I thought i could build voltage divider with variable resistor to get the volt I want, but it looks like the passed 10amp damaged the resistor.
What can I do ??
Here's what I tried to do:
This schema is pseudo, it's only to clarify the connections, circuit in real life is working as expected with the right parts.