If the final product is useful to him, then the cost is justified.
If it would not be useful to you then you are right, it would not be worth it to you
ImA4Wheelr knows me all too well. He zeroed in on that topic when he posted this:
He realizes that this build will cost me nothing other than the price of the DPS5015. The case is from an old battery charger and the power source, the yard tool battery, I already had and have other uses for it.
When I first opened up this Ridgid dual bay charger and I saw this sweet power supply, it crossed my mind that I could possibly use it as is and connect 2 of the DPS5015’s. I did mention that I intended to check out that power supply, and while I am waiting for my shipment, I will do just that. I will post voltages and current capacities later.
Perhaps what I could do is use one half of the dual power supply and have both a plug in Bench supply AND a portable one.
I think it would be as simple as a DPDT switch on the input of the DPS5015 to make it work.
Of course it would all have to fit in the case and all.
I do know this, starting right now I will be scrounging around for another one of these Ridgid chargers.
What I was saying was that after I finish my portable supply using the DPS5015, I may order 2 more DPS5015’s to build another plug in supply if I can find another old Ridgid battery charger.
This Portable Benchtop Power Supply is not my first attempt at this. 2 1/2 years ago I tried doing this with lesser modules and the result was less than satisfactory. Both of the supplies in this link have since gavin up the ghost. They were rated at up to 3A, but couldn’t even do 1 1/2 at certain combinations of input and output voltages.