Hi folks:
I'm looking for a power supply to have at my desk, for my arduino projects.
I know I need a 5V supply, but a 12V supply would be good for driving large step motors or other type of loads.
So my idea is to have a 220VAC -> 12Vdc power supply, and from there to get the 5Vdc through an DC step down regulator, and maybe a 3.3Vdc also.
My question is:
I have available a 12VDC - 2Amps wall power supply for like 19, much like a phone charger, but I also have available a industrial power supply 12VDC - 2Amps for around 15 (a Mean Well Power supply) at the shop nearby me...
I'm inclined to buy the industrial power supply, it's cheaper, well ventilated, and I suspect much better than the wall power supply, because at least it seems that it has current protection among other things. I'll have to build a case and put some other stuff around, but it seems a better deal...
What do you guys think?
I'm looking for a power supply to have at my desk, for my arduino projects.
I know I need a 5V supply, but a 12V supply would be good for driving large step motors or other type of loads.
So my idea is to have a 220VAC -> 12Vdc power supply, and from there to get the 5Vdc through an DC step down regulator, and maybe a 3.3Vdc also.
My question is:
I have available a 12VDC - 2Amps wall power supply for like 19, much like a phone charger, but I also have available a industrial power supply 12VDC - 2Amps for around 15 (a Mean Well Power supply) at the shop nearby me...
I'm inclined to buy the industrial power supply, it's cheaper, well ventilated, and I suspect much better than the wall power supply, because at least it seems that it has current protection among other things. I'll have to build a case and put some other stuff around, but it seems a better deal...
What do you guys think?