Hey there.
I am in need of a PSU. The old unit that was gifted me (it has at least 30 years) is not enough anymore.
I usually do not do much power-stuff, and also am kinda on a budget (I can spend up to around 400€ if the benefits are so huge to justify that, but perhaps I do not need expensive things).
I basically need:
- at least two outputs
- at least two of the outputs should be able to go to ~20/30V
- 2A are enough, although I know that 3A is usually quite standard. I normally do not need more than 1A
- short circuit protection is ESSENTIAL since otherwise I would blow up everything after the first 10 minutes
- perhaps, as a beginner, there's something else I need that I do not know
- best if seller is europe-based
After gathering all these requirements, I found (on a seller website) the following products. I actually do not know how to choose because basically I cannot justify the price difference in any way. Also, albeit on a budget, I do not want to buy absolute crap. So here we are
Number one is a KORAD KD3305D (never heard of KORAD before)
https://www.welectron.com/Korad-KD3305D-Labornetzteil_1 Datasheet. It's really cheap, and it seems to have everything I need, although I do not know whether it is ok/reliable.
Next is another KORAD, KA3305P
https://www.welectron.com/Korad-KA3305P-Benchtop-Power-Supply Datasheet. It costs a little more. No clue what the difference is, apart from having a single knob instead of one knob per channel…
Now I've got a SIGLENT, SPD3303C
https://www.welectron.com/Siglent-SPD3303C-Benchtop-Power-Supply . It costs almost 100€ more than the first Korad. Apart from the siglent brand, I do not know why since it delivers less power than the korad at a lower resolution too.
Finally, the monster, which is basically kinda an overbudget thing (but if it's remarkably better than the others I'm willing to make), the Siglent SPD3303X-E, which costs 2.5 times the first korad;
https://www.welectron.com/Siglent-SPD3303X-E-Benchtop-Power-Supply datasheet. It seems that the price is justified by a nicer interface and a better connectivity which I do not care about, but perhaps there's more to it I'm missing.
So after all of this I actually do not know. Is there anything better out there for my purpose, that I simply ignored just going to one seller? Which one do you think is best for my needs?
Thanks to anyone who will help me choose and understand better. Cheers