SmartCharger - One to rule them all

yep, just like the dps50xx

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Thanks! :love_you_gesture:t3:

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oh btw the 48v Meanwell can be cranked to 55v, just don’t exceed 80ish % of it’s rated amperage

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That high amp one would be interesting with a high amp 60V PS!
Like this one: https://a.aliexpress.com/_d9bthA4

Found it on eBay: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F163691525142

This complete unit is also nice for lower amps though: https://www.aliexpress.com/item/4000282551930.html?spm=2114.12010612.8148356.1.384f2f3fLXinwp

https://www.aliexpress.com/store/group/Digital-Power-Supply/3672134_512813285.html

This might be the oem? Line-up:

Doesn’t look like the mfg is Ruideng for these things.

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Really interesting !
I know this brand! I built a standalone power network ifor an isolated chalet using their product.
It does the job althoigh it was strangely designed.

I’ll have a look (I need to figure out if the comm. allows me to perform the same stuffs than DPS).

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here we go

I jost ordered an DPH8920
96v output with 20A
was torn between the two since my supplies are just a bunch of stacked 12v/63A server psus so I have the Amps.
But I’d rather be future proof for those 20s days #stormcore

@deucesdown
How are you liking the unit?

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Don’t have one (yet). Haven’t had time to figure out the models yet. US wall power is about 1500w, it’ll be hard to feed these babies. Nice problem to have :slight_smile:

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Yeah but I dont plan on running the thing at full tilt ever anyway.
its more about the range. Efficiency of my DC supply is gonna be maybe 95% about the same as these unit so over all 1.5KW*0.903 gives me 1300 watts to play with.
Thats assuming I don’t find just plug it into the 220v line in the garage. You may also be able to find a 30A line around. possibly by the dryer or boiler

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All this talk has reminded me that i need a charger. Hows this dev going :wink:

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I’m facing some issues related to the poor quality of the power supply output.
What’s weird is that my prototype worked flawlessly straight forward.

I’m also reconsidering a lot of things in my personal life.
So to be more aligned with what really motivates me, I decided to release everything under Open Source licence.
This will also people to contribute as I’m in a self-learning process on many topics (including dev and electronics :grimacing: ).

Back to technics : I was working on the casing when my 3D printer decided to piss me off.
So I ordered an Ender 3 Pro and started a (big) project of re-building my proprietary 3D printer with standard parts.

To sum up : skills limited + no 3D printing ability + less time for the project + personal life concerns = hard time to find motivation and keep this project moving forward.

I hope that the opening to other contributors may help the project to reach more people because I’m really convinced that this is a really useful device.

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Courage and patience, Clem. It’s all going to work out in the end.

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Im sure it will be benefited, we all need this Smartcharger !!

:crossed_fingers::relaxed:

wich you good continuation my friend !

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Looks very promising! Thank you for all the effort.

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UPDATE

I have a new 3D printer, up and running !
So I’ve defrozen the project and could go on the mechanical fitment and adjustments.




You’ll notice the change from XLR to Speakon plug.
Safer and cheaper (for this current rating).

I still need to run everything to check if EMI are not messing up with comm. and MCU.

Sorry for the delay everybody.
I’m working on many projects in parallel.

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This is sweet! If only it supported up to 55v :rofl:

I regularly push the DPS’s brand for making a 80V 20A version.
They’re “considering” the request (let’s say it won’t happen tomorrow).

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UPDATE

Still on the dev of the main PCB.

As I get weird noise on the comm between DPS and my MCU, and because I didn’t even push my prototype to the limits (charging at 20A) I was concerned to even more troubles.

So I decided to isolate galvanically the link between them. I moved to 2x Broadcom HCPL-0600 (tiny package for 6N137 optocoupler).
I still need to test it on breadboard but at least I managed to squeeze everyhting on the board to embed the extra components without changing the width of the board (thus fits my enclosure without changes).

If experts see something wrong on my device or do you any recommendation regarding the layout, things to know about optocoupling or anything, feel free.

The more I’m going on this project, the more I feel like swimming in an ocean of unknown. :smile:

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