| Products > Test Equipment |
| Cheap bench power supply? |
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| DaneLaw:
--- Quote from: Aldo22 on January 29, 2024, 07:46:17 pm ---From Switzerland it is different. I can see the products on all 4 links. I can also order the products of the last 3 links. Only the first one says: --- Quote ---This product can't be shipped to your address. Select another product or address. --- End quote --- --- End quote --- Yep, but neither you [Switzerland] nor Shapirus [Ukraine] ain't based in the EU, and why I wonder if it's an EU restriction? or maybe it's simply country-based as its tragicomic how a quarter of my wishlists on Aliexpress with tech products that suddenly at the year turn is now being restricted to the point you can't see the listing anymore, only a locked-out to your region banner.. But in regards to links above, its solely this link from early posts - and if other users in the EU could access it. https://www.aliexpress.com/item/1005002058172206.html? // VPN (Brazil) + incognito mode.. seems to do the job, same as Ukraine VPN + incognito. |
| tautech:
--- Quote from: Aldo22 on January 29, 2024, 01:47:08 pm --- --- Quote from: nctnico on January 29, 2024, 12:52:41 pm ---He stole my idea from EEVblog! That is what I think 8) --- End quote --- Then it can't be all that wrong. ;) --- Quote from: nctnico on January 29, 2024, 12:52:41 pm ---I did exactly the same (and more) to a similar PSU and posted the results here. --- End quote --- Where exactly is "here"? Thank you. --- End quote --- Probably this one: https://www.eevblog.com/forum/testgear/cheap-variable-switching-power-supply/ |
| thm_w:
--- Quote from: shapirus on January 28, 2024, 10:52:04 pm --- --- Quote from: KungFuJosh on January 28, 2024, 10:40:20 pm ---I haven't tried this one yet, but it looks interesting for people that need more voltage: https://www.amazon.com/dp/B0C89F4XJY/ --- End quote --- Yeah it looks quite good, and it's btw a lot cheaper (about $35) on Ali. I might build a second unit to serve as a second channel, will see. However when you add the price of an AC/DC PSU... it may well be that getting the ready made one (I am sure they make ones already with a case and AC/DC supply) will cost the same, if not less, not to mention that it's easier. Building my first one was fun, but it was just enough of that particular kind of fun for me :). --- End quote --- One of the major reasons to get these is if you have a spare PSU laying around. Usually at work or through friends you can find old laptop bricks (20V 10-20A) or server PSUs, etc. that are no longer used. I didn't bother with a case just mounted it on a flat sheet. But you could 3D print a case or just back cover I guess. The Riden are way more expensive but offer proper battery charging relay + custom firmware. Wish some would come out with LXI though instead of dumb stuff like a handheld remote and weather screensaver :D. https://www.aliexpress.us/item/3256803286017579.html 60V 12A Riden $100 https://www.aliexpress.com/item/1005003432603471.html 60V 12A WEGE $40 https://www.aliexpress.com/item/1005004945384897.html 60V 14A XY6014 $40 |
| Randy222:
These dc-dc front ends (choppers) are noisy though. Most are buck type, be nice if some could be buck/boost types. |
| thm_w:
--- Quote from: Randy222 on January 30, 2024, 12:43:10 am ---These dc-dc front ends (choppers) are noisy though. Most are buck type, be nice if some could be buck/boost types. --- End quote --- Riden is Buck->linear reg.. I don't have the other brands handy so not sure, but I assume would be similar. You could get a generic buck/boost and put it before the Riden, but for me there is no point, just series a few scrap supplies together. |
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