I remember that this was discussed somewhere in this thread. Specs wise it looks like it'll work. I dismissed it because even though it has the highest power density it's about $150-200. Pretty darn expensive.
They dont, they publish a PCB reference design though. This looks like it isnt aimed at end users so much as its aimed at people who are developing hardware / product and want an off the shelf power supply they can just integrate into it. A very quick look also suggests you need to provide your own voltage reference to it as well in some cases. It also looks like its intended to be heatsinked, either to whatever product your integrating it into or to the optional 'sink they sell for it, there is mention of derating curves towards the end of the manual.I did not find any "standard" PCB made by Cosel though.
EDIT: Page 10 of the manual has a diagram and parts list of external components that are needed to run the unit. Whilst i am very, very far from an expert on the topic it appears that the only way to really use this w/ much of anything would be to fabricate a carrier board & some sort of heatsink solution for it at a minimum.
The market their pushing this product at isnt a market that wants or needs ready made carrier boards. Im sure you could pay someone to design one for you & push it through cert but i expect you would pay out the ass for it. It doesnt look like a very complex PCB would be needed just to get it up and running though, i would hazard a guess there are the prerequisite skills on this forum to make it happen if enough people are interested in doing so.Yes, that's why I tried to look for a ready-to-buy PCB made by Cosel. They only give a general design guideline.
Is there any company that could produce such a PCB, with all the needed certifications ?
The market their pushing this product at isnt a market that wants or needs ready made carrier boards. Im sure you could pay someone to design one for you & push it through cert but i expect you would pay out the ass for it. It doesnt look like a very complex PCB would be needed just to get it up and running though, i would hazard a guess there are the prerequisite skills on this forum to make it happen if enough people are interested in doing so.
hey wade those psu's seem to have worse load reponse over 600mv did anyone try them?I've been looking at 12 volt power supplies and found the TUNS700F12, would this work with a G-Unique?
There are 300 and 500 watt versions also, but since it's only 40 and 15 dollars more respectively, might as well go with the 700.
There are also heatsinks that look designed for these at ~22.9mm and ~11.4mm, which could be paired with some 60mm or 50mm fans.
Just found the new darling of the open frame AC-DC power supply crowd:
https://www.mouser.com/ds/2/643/bcd.00879_aa_abc180_series-1116247.pdf
Also comes with matching enclosure (extra of course)
https://www.mouser.com/ds/2/643/bcd.00879_aa_abc180_series-1116247.pdf
I have ordered one and will be testing suitability for use with the KMPKT Dynamo Mini. While I understand the cost is high on this unit, if it works well I am planning to look at making a slight variant (120mm x 57mm x 25mm) that will hopefully be much cheaper due to the larger PCB size. Thoughts?
Otherwise, you have a much cheaper Acbel 20V 10A AIO PSU available on eBay.
How will you be able to reduce the cost without doing a huge bulk/custom order?
The Meanwell version of this is 30mm tall (1.25") and is much cheaper and easier to source a bulk order. I can imagine it being usable inside the S4MINI mini on either the motherboard or GPU side.
I forgot you're interested in the 24V variant, which seems in spec
And I don't think it's the size of the PCB that is causing the higher price, but rather the low profile components that keeps the board slim.
Any idea what the dimensions on the Acbel are? I don't think it's nearly as small as the one I'm purchasing. Also I'm looking at a production AC-DC solution out of this, so a one-off HP unit I can't reliably buy and resell isn't going to cut it unfortunately.
I would reduce the cost by doing a huge bulk/custom order : )
It is, but I wouldn't be comfortable offering an open frame supply to the average user. Once you add an in-spec metal enclosure to the EPP-200-24, you're looking at a height of closer to 40mm and likely some increase in width. Starting with a smaller board and adding a custom enclosure (non-metal on contact surfaces) would likely allow a finished Z-height of around 25mm. The rough goal of what I am trying to see if I can do is to make two units fit on a 120mm fan mount adapter.
Yep. The DC-DC units also smooth things out a bit I believe. I'm e
It's true. The approach I am attempting to take is to see if multiple smaller modules (ie. inductors/caps) can be parallelized in such a way that smaller components can be used. I am not married to the industry standard of 101.6mm x 50.8mm, so I figure I can increase length by 15mm and width by 2-3mm and still meet my goals for size.
Any idea what the dimensions on the Acbel are? I don't think it's nearly as small as the one I'm purchasing. Also I'm looking at a production AC-DC solution out of this, so a one-off HP unit I can't reliably buy and resell isn't going to cut it unfortunately.
Seems like you got an interesting project in plan. But I do wonder how many uses it has and the overall consumer cost of the PSU. It seems like its going to be a very premium type of PSU.