I has a question (obviously).
Looking for answers from people who have real world done this.
These ubiquitous power supplies that are everywhere.
I have several and they are somewhat adjustable. I have recently learned that they can be modified to be adjustable from a pretty low voltage up to a voltage higher than they may be sold as putting out.
In my case I have one that says it can do 15vdc at 40 amps or 600 watts.
In fine print it says not to exceed 80% rated output continuously.
It could be adjusted from 14.96 to 21.38vdc.
To make it easier to adjust I installed a physically larger POT and a small digital volt meter. Since I did not have an exact match for the original pot (1k) I used a 1.4k. Now it is adjustable from 13.2 to 21.1vdc.
I would think that if I ran the thing at 21 volts then I would have to limit the current to about 28 amps max? But could I also run it at 13.2 volts and 45 amps? barring some kind of current limiting the complete lack of a datasheet does not inform me of.
I don't actually intend to run this thing full tilt at any high amperage for any great length of time, but am curious if anyone has and how well did that go?
Looking for answers from people who have real world done this.
These ubiquitous power supplies that are everywhere.
I have several and they are somewhat adjustable. I have recently learned that they can be modified to be adjustable from a pretty low voltage up to a voltage higher than they may be sold as putting out.
In my case I have one that says it can do 15vdc at 40 amps or 600 watts.
In fine print it says not to exceed 80% rated output continuously.
It could be adjusted from 14.96 to 21.38vdc.
To make it easier to adjust I installed a physically larger POT and a small digital volt meter. Since I did not have an exact match for the original pot (1k) I used a 1.4k. Now it is adjustable from 13.2 to 21.1vdc.
I would think that if I ran the thing at 21 volts then I would have to limit the current to about 28 amps max? But could I also run it at 13.2 volts and 45 amps? barring some kind of current limiting the complete lack of a datasheet does not inform me of.
I don't actually intend to run this thing full tilt at any high amperage for any great length of time, but am curious if anyone has and how well did that go?
Comment