Hi all - I just found this forum today after doing quite a bit of internet digging to see if I can figure out the puzzle I have on my plate. I'm currently looking at electro plating and rather than going out and buying a power supply, I figured I can reuse some parts laying around. Unfortunately my electrical knowledge has diminished over the years as I've been primarily focused on software engineering but I think I have the majority of the puzzle figured out.
All in all, I am essentially trying to determine what size rheostat I can get to allow for variable voltage control between 1-3 volts.
Setup this far:
9T56Y2876 Transformer - Wired for 12V - KVA .150
Rectifier to produce DC voltage
So based on my limited knowledge this far, the transformer will produce 150 watts at 12 volts at an amperage rating of 12.5. It seems that there's wattage ratings for rheostats which seems to indicate the amount of power that can be dissipated so if this is correct, I would think I would want a 150w to account for the incoming 150w (perhaps 200w for some extra buffer). The second question to the puzzle is how many ohms should I be targeting to meet my needs?
I was looking at something along the lines of this: https://www.amazon.com/Fielect-Wire...ostat&qid=1590684709&s=industrial&sr=1-5&th=1
However I'm not confident enough in my research and understanding to give it a go. Any input/information is greatly appreciated!
All in all, I am essentially trying to determine what size rheostat I can get to allow for variable voltage control between 1-3 volts.
Setup this far:
9T56Y2876 Transformer - Wired for 12V - KVA .150
Rectifier to produce DC voltage
So based on my limited knowledge this far, the transformer will produce 150 watts at 12 volts at an amperage rating of 12.5. It seems that there's wattage ratings for rheostats which seems to indicate the amount of power that can be dissipated so if this is correct, I would think I would want a 150w to account for the incoming 150w (perhaps 200w for some extra buffer). The second question to the puzzle is how many ohms should I be targeting to meet my needs?
I was looking at something along the lines of this: https://www.amazon.com/Fielect-Wire...ostat&qid=1590684709&s=industrial&sr=1-5&th=1
However I'm not confident enough in my research and understanding to give it a go. Any input/information is greatly appreciated!