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> A DC power supply capable of providing 12V Hey, I just remembered my school used to have ages ago some cool power supplies (I think from Agilent?) that were
by a1o 7mo ago
> A DC power supply capable of providing 12V
Hey, I just remembered my school used to have ages ago some cool power supplies (I think from Agilent?) that were very idiot proof, they had current limit with a dial that I think didn’t went over 1A or perhaps even less, and they would instantly disarm on short circuit (and indicate it with a led), and also the voltage dial I think wouldn’t go over 25V. I remember it was very big and heavy, but it survived countless students that used the lab daily.
Nowadays, is there any power supply available that is that resistant or is the recommended approach to get an used old one? Does anyone have a power supply at home that is also used by kids with a brand/model they would recommend? Thanks!
- bombcar 7mo agoThose were called something like desktop power supplies. https://www.mouser.com/c/power/power-supplies/power-supplies-bench-top/ https://www.mouser.com/c/power/power-supplies/power-supplies... AT $5k it better make me breakfast, too.
- virtue3 7mo agoThey have variable dc power supplies on amazon on the cheap. If you want that sort of reliability it will probably go towards 100$.
- duskwuff 7mo agoWhat you're describing is a lab power supply. (The "instantly disarm on short circuit" is overcurrent protection, which is a standard feature.) The name brands like Keysight or Rigol are kind of expensive, but there are a lot of no-name models on Amazon which will do the job well enough.
- budman1 7mo agoKeysight == Hewlett-Packard Old School.
- rickdeckard 7mo agoOr Agilent, at some point in between
- numpad0 7mo ago{Keysight, Agilent, Avago, HP, HPE} are/were all HP
- a1o 7mo agoThanks! I had a BK Vision or something similar at some point and it just blew up. I will give it a search for these brands, sometimes I find a well-cared used one from the more expensive brands at good prices so that’s what I will look for first. :)
- denysvitali 7mo agoGot this for ~50$ a while ago. It works perfectly for this exact setup (Tesla MCU on a bench), tested it, and used it for a lot of other projects. https://a.aliexpress.com/_EvT5Kog https://a.aliexpress.com/_EvT5Kog