💥 2000 Watts DC Power Supply DIY: Unleash the Ultimate Electronics Powerhouse! ⚡️

[@Thinkingmind-lu5ub]

Wonderful video!❤ I love how you take the time to explain every detail on the build. Nowadays, most KZbinrs simply just want to talk super fast and speed through their videos, making their build tutorial hard to follow. Thanks again for a great tutorial video! Kudos 👏 👏👏👏

[@theinnovati0nlab782]

Thanks a lot for the great feedback!👍👍👍 We are happy that you find our videos informative and interesting! 👍😎 The Innovati0n Lab

[@theinnovati0nlab782]

We hope you enjoy this video, Guys!!🔥 We did our best to make that we covered a lot of grounds regarding all that you need to know in this tutorial. The work done here is not perfect and there are lots of areas to improve on. But as you guys know, nothing can be really perfect. We learn as we go. Bloopers: - The clamp meter was used to measure the input "CURRENT" not input "VOLTAGE" - Earth Ground Isolation: DMM probe reversed - but didn't present an issue because we were measuring resistance - Plus a few more......I hope they are not that obvious....Hahaha! Alright guys, give feedback: But we ask that you keep your feedback respectful and constructive. It takes lots of effort, time, and resources to produce these videos and we want to thank you guys for supporting The Innovati0n Lab and for inspiring us. We appreciate you!! 👍❤ - Questions - Comments - Suggestions: For tests you would like to see us conduct with this power supply Please help this video buy watching it from beginning to end...Hahaha!! (the algorithm loves it) Thanks a million guys!!

[@thomaslindell5448]

Those pins behind the resister look like good candidates to wire the resister in without solder

[@theinnovati0nlab782]

That sounds like a great idea. There are definitely many different ways of doing something.☺️ I soldered the resistor on because it was pretty easy and safe for me to do. You can try a different method that works for better you. Thanks for the wonderful engagement. The Innovati0n Lab💥 www.theinnovati0nlab.com

[@pauls6279]

I really enjoy your channel. I just stumbled across it researching boost converters. Is it possible to wire these power supplies in parallel for more current to the load? If so, is the resistor still needed? I'm trying to design a monster of a portable speaker system. These supplies seem like the perfect choice. It would be used to power a car amplifier and stereo. Which would power the speakers and subwoofers.

[@theinnovati0nlab782]

Wow! I am really happy for such a wonderful and positive feedback. Regarding switch-mode power supplies, my experience is that the don't like to play well together when connected in series......so my immediate answer would have been a no...hahaha! But I have learned never to say never, so I will give this a try - given that I already have the 3 of these power supplies. Also, your project brings back good memories as I know someone who built a similar project a while ago. The only difference was that he used vehicle 12V batteries to provide power to the system. Stay tuned. I will test this and possibly make a quick video for it - depending on how busy I become in the new year...lol. Fingers crossed. Thanks again, friend! 👍😎 - The Innovati0n Lab💥

[@subhobroto]

Fantastic as always! Any interest in now migrating this into a multiphase interleaved boost converter?

[@theinnovati0nlab782]

This is exactly what the 'limitless' power concept is all about.!👍👍👍 Yes, that is that plan going forward. A synchronous interleaved system where there are no limits to the number of phases that can be added - as long as size, weight, and power density, ans cost, are not major concerns for the designer. Honestly, I am very happy with the first board. However, I have to conduct some more test to look at the efficiencies at different input voltages and loads. Also, I am working on an improved inductor design. Most of the inductors used on the cheap boost converters are mass produced and does not account for skin effect. Thanks again for the thoughtful feedback. 👍😎 The Innovati0n Lab

[@holgerjacobi2454]

Top Video! Meine Englischkenntnisse sind nicht so gut aber durch die Videos dazu ergibt das dann ein gesamt gutes Bild. Was ich nicht verstanden habe ist wofür der Wiederstand an den Netzgerätn angelötet wurde?

[@theinnovati0nlab782]

Thanks a lot for such wonderful feedback! Much appreciated!👍👍👍 I did some research some years ago, and I found out that adding a low-value resistor between those pins, as I showed in the video, is needed to provide a small biasing current that trick the converter to ENABLE (turn ON) the output voltage. I hope this helps. 👍👍👍 The Innovati0n Lab 💥 www.theinnovati0nlab.com

[@pubgwithleo5596]

What solering iron did you use for the big contact on the negative and positive side of the power supply?

[@theinnovati0nlab782]

I use a D650, 300W high power Weller soldering gun when I am working on such. Yeah, this is a life saver when soldering huge wire gauges and contacts! You can order it using our Amazon affiliate link below. amzn.to/4c0US7r

[@turbotrix19]

Brilliant!!! Would you share the 3D print Files?

[@theinnovati0nlab782]

Thanks! Yes, the STL should be on my website for a free download....Downloads page. 👇👇👇 www.theinnovati0nlab.com Website launch video: kzbin.info/www/bejne/b4OzlWqGlNmKoJIsi=-szRLD-ri_cq1uy4

[@ironhead320]

Though about doing this I'm looking for 200amps 14.5 for radio equipment

[@theinnovati0nlab782]

Sounds like a fun project you are working on. These server power supplies can only do 65A at 12V. They may not work well in parallel. You can give it a try and let me know if it works for you.☺️ I hope this helps. The Innovati0n Lab 💥 www.theinnovati0nlab.com

[@mattsuser]

Nice job. Great to see your video's. Any chance of sharing the stl. files.

[@theinnovati0nlab782]

Thanks a lot! We are working on our website where we can make something like this possible for our future members. I know a lot of people have been asking about this and we will find a way to make it possible. Thanks again and we appreciate your support. 👍😎 The Innovati0n Lab.

[@FixitEasyDIY]

How cool is this channel 😎. Love your content❤❤❤

[@theinnovati0nlab782]

Thanks a lot!❤️ We appreciate your wonderful feedback! 👍👍👍 The videos take quite some effort to make them, but we enjoy making them. What we love the most is knowing that our valued audience like yourself is finding our videos useful. We are happy to promote positive energy and creativity in the world. Thanks again! 👍❤️ The Innovati0n Lab

[@deadlistcach]

how long this system working. a lot of series connection server psu videos on youtube but only few of them have real test in end.

[@theinnovati0nlab782]

I have only used it to drive a load for about 30 min to a few hours....but you are right about testing the system for a longer duration. However, this is also where the audience comes in. Most content creators just want to focus on showing you the 'how' something works - so you can build your own and test it. You can use those videos as a reference to build one and push it to any limit that you want to. 👍😎 - The Innovati0n Lab 💥

[@deadlistcach]

@@theinnovati0nlab782 what about capacitor on dc output side of psu? Some voltage hack videos (like 15v) they said don't put more voltage because of these capacitors are 16v. When we do series connection iw wont be problem?. Or it will problem long time later? What's your thoughts about this. Thank you

[@theinnovati0nlab782]

@@deadlistcach This is a very thoughtful question. First of all I don't the output voltage hacks on these converters and I don't recommend doing them. You should never push voltage values too close to the rated value of component.....so I leave mine at 12V as the manufacturers intended. Regarding your concern with the series output configuration. Honestly, I have not tested it over a long duration to know if there are going to be faliures or issues. The only thing I am relying on is my knowledge of circuit theories. The output components should only see the potential difference across them - which is the 12V. However, your concern is valid as they may be some leakage current paths that could impose a slightly higher voltage on the components of one of the converters...but then again, this theoretical as well...hahaha. Thank you for sharing your concern.....I will investigate further on this and make a follow-on video! 👏👏👏👏 The Innovati0n Lab 💥

[@deadlistcach]

@theinnovati0nlab782 I watch probably most of videos about these psu's. Only you and couple people do load. And most important ı asked all but just you turn back questions thank you. when ı wanted to do 24v with these psus ı found one person do voltage increasing and says about these condansators. Even 24v you did a 36v . I don't have big knowledge too, so do you mean when we use 12v in series it won't be problem because its still 12v😀 anyway ı will do 24v and put some pwm charger and charge my batterıes. İf it die it dies🤷 but 36v is crazy if it still works 24v will be fine.

[@hozzasolo9679]

Wonderful work and presentation Mr. and what about efficiency? As I calculated 86,6% great! Do you know relatively cheap eg.: Huawei R4850G2 or Emerson, Eaton) 48V telecommunication power supply modules with ~ 96% eff?

[@theinnovati0nlab782]

Thanks for the wonderful feedback. I usually don't worry too much about efficiency for a power supply that is going to use mains input power. But you have a good point. Thanks! The Innovati0n Lab 💥 www.theinnovati0nlab.com

[@sdewaard]

Thanks a million for your video, very helpful. Planning to do something similar myself with two of those HP 1200W server power supplies to charge my 15S (nominal 48V) LiFePO4 battery, also using the same DC converter you are using. I'd be happy with 1400-1900W going into the battery, which should be doable if I can get 30-40A output from the converter. I plan to have both power supplies on a single smart socket, for scheduled night time charging Is there a reason you use a resistor, rather than just shorting the pins?

[@theinnovati0nlab782]

Thank you so much for such wonderful feedback! Making these videos is a time-consuming hobby, but such inspiring feedback makes it all worth it.👍👍👍 Regarding the resistor value, I believe that it came from some research that I conducted a long time ago, and I have not tried shorting those pins. Plus, I think it's safer to just use the resistor - especially giving that we know that it works and doesn't damage the server power supplies. Thanks again, my friend! 👍😎 The Innovati0n Lab.

[@sdewaard]

@@theinnovati0nlab782 - and a follow up. A few weeks ago I made this with 4 * HP 750W power supply in series, bought at around $20 each. I took out the grounding pins on 3 of them, upped the voltage on all of them to the max 12.86-12.87V and put them on a smart plug as a supplemental battery charger. Works a treat but the voltage is a little bit low for my 15S LiFePO4 battery, still getting a useful 3-5kWh into the battery during my 3 hours of cheap electricity. The total charge depends on the SOC of the battery at the start. So very useful and a superfun, low cost project.

[@sdewaard]

Oh and because I used 4 of the PSUs, I no longer needed to use the boost DC converter as the voltage is already high enough. I plan on re-jigging my battery soon as a 14S setup, and then this power supply should be just about perfect for the job

[@theinnovati0nlab782]

@sdewaard I am very happy to hear that! Let me know if have any questions in the future! Success Wishes on your diy project! 👍😎 The Innovati0n Lab 💥

[@stevlede930]

Please built like this with huawei R4875

[@theinnovati0nlab782]

Thanks for the suggestion. I am not familiar with that supply. I will research it. Hopefully, it's not too expensive for our channel. Our projects are not sponsored by anyone and these videos are not cheap to produce. Stay tuned, my friend. Thanks again for the great feedback. 👍😎 -The Innovati0n Lab 💥

[@GaryLordsWayMinistry]

Question does the 27 ohm resistor set up the voltage of the units output voltage or just turn the unit on? Will a lower ohm resistor change or increase output voltages? So that all the voltages could be adjustable by putting a potentiometer in place of the resistor? That way I can dial up what I need to match each unit to be the same voltage out? I plan on hooking up 4 of them at 13.375 to equal 53.5 output voltage for my amplifier, that is 4 LD mosfets requirements for a total of 1.2 K watts. So I should have plenty of wattage doing it this way too. The amp only needs about 22.43 amps @ 53.5 volts no more than 25 amps would be required of all the power supplies in series. Let me know what you think...about my design.

[@theinnovati0nlab782]

Wonderful! I like the idea and design concept. However, this is something I have not tried but it makes sense. Varying the enable resistance is a way to trick the SMPS's voltage feedback loop but this will have a limit - as you already know. I was happy with using about 27 to 33 ohms because that resistance range provided the 12V that I needed. Observation: I noticed that during testing - with heavy loads the output always wants to stabilize at 12V. So I hope that your design is more stable at your tuned output voltage level. If not, I will not be totally surprised if the system voltage drops to 48V under a surge draw from your amplifier. Another alternative will be to try using a constant current DC-DC boost converter like the ones I have reviewed on this channel. The only major caveat is that those converters are current limited to about 30-40A so you will need a strong 36V source to get an output close to 1.2KW. Also, make sure that you use the same exact model (power rating, same label, etc) of the server power supplies for your build. If not you will get trips under load because the different models may have different loop response times.....just my guess. But I learned this the heard way. I hope this helps. 👍😎 The Innovati0n Lab.

[@GaryLordsWayMinistry]

I have a Cisco converter that does 42 volts at 300 watts so I will most likely use a step up DC/DC step up buck converter paralleled so I can get 80 amps between the two so they run cooler under load, my main draw or load will be 53.5 volts at 35 amps I am told so looking at 1872.5 watts total load during transmitting: so I will over build it so it all runs cooler without over loading anything, the way I usually do thing here. Your idea is a good way to get the voltage you need and for a lot less money but my 3000 ac to Dc was only 77 # and my buck converters are only 10x2 20$ for both giving me 80 amps for the load so I'm relatively looking at low cost for out put wattage and amperage so far. I like your idea though it seems really simple and practicable too. I was going to use 4 of the power supplies at 13.375 volts to get my 53.5 I'm looking for so that too would not be too much of a draw on all the power supplies either. Good talking with ya thanks. @@theinnovati0nlab782

[@argellaguardia9390]

I am very much interested with your dc power supply. If you could make 48V 2000W i am willing to buy 1.

[@theinnovati0nlab782]

Wonderful idea! I have been able to connect 4x of these power supplies in series - in some of my videos - it's pretty much the same concept shown in this video, and it works. However, using these 750W server supplies, a 48V setup will be a 3000W supply instead of 2000W. 😊 I hope this helps. The Innovati0n Lab 💥 www.theinnovati0nlab.com

[@Cichyoffgrid]

You explain very well and show, I really like your idea. What if you use it to charge 48v cells? Do you think it would work? it would pass the test. it is a 48v energy storage with lifepo4 The total number of cells is 16 pieces

[@theinnovati0nlab782]

Thanks for the wonderful feedback! Much appreciated. Yes, it will work. But you will need a constant current DC-DC boost converter to make sure that you will be providing the right charging voltage and charging current for your battery system. Since I don't know the specs of your battery system, you may have to do some research to find the recommended charging voltage and current for your battery. A 48V battery system usually means that you will need greater than 48V as your charging voltage. See some related videos I have made on the boost converter and how to use it as a cheap high power charger. 👇👇👇 1800W boost converter review: kzbin.info/www/bejne/aHzcc6qtocmkoc0si=49ivzXR3BWoHO8_K Charger explained: kzbin.info/www/bejne/jXW6e2ptjLyejsUsi=Z-P8H_HSANrn2hLM Original charger video: kzbin.info/www/bejne/ZnTXkKadl6adi5Ysi=zvGeIjNInhitA2d8 I hope this helps. Please watch these videos and let me know if you have more questions. 👍😎 The Innovati0n Lab 💥

[@Cichyoffgrid]

@@theinnovati0nlab782 of course. lifepo4 cells 280 ah 3.2v combined into a package of 16 pcs of course bms must be jk 16 szt *3.65v= 58.40v I'm just wondering about the number of chargers or whether to connect 3-4 in series. And use a dc-dc converter and set it to 58v and charging current 20-30a

[@theinnovati0nlab782]

@user-dg8ni4nv7s To get the most power output, you will need about 36 to 48V input to a dc to dc boost converter. That means 3 or 4 of the 12V server power suplies in series. The videos I sent you cover a lot of this detail.

[@Cichyoffgrid]

I agree, I'm looking for a power supply and a 50a dc-dc converter

[@theinnovati0nlab782]

@user-dg8ni4nv7s Please make sure you invest in some high-quality BMS protection for this level of charging - especially if you are building the battery as a diy project...trust me, it's absolutely terrifying when these high power batteries go bad due to overcharging and overheating. ⚠️⚠️ Not something that anyone wants to see, trust me.😊 I would also recommend a lower charging current. But you know your system better than anyone. 👍👍

[@thomaslindell5448]

Why not just use 4 12v power supplies and skip the dc dc boost converter?

[@theinnovati0nlab782]

Wonderful question. 👍👍👍 It depends on the nature of your application and the voltage and current requirements. Adding the boost converter gives one the ability to increase the output voltage beyond the input level. Also, the current adjustment gives you the ability to adjust the amount of current delivered to your load - especially for applications like battery charging. A very critical and super important step during battery charging is to make sure that you are staying within the recommended charging current of the battery because supplying high currents to your battery will damage the cells in a short time....due high stresses. I hope this helps. The Innovati0n Lab 💥 www.theinnovati0nlab.com

[@DustinWatts]

Why not add 1 more HP power supply and get 48V? :)

[@theinnovati0nlab782]

I hear you.😊 Maybe in a future video, if/when we have the need for it. The Innovati0n Lab

[@gregorybolin4672]

I would be interested in tearing these apart any good parts in these like expensive transformers capacitors and coils ? Thanks

[@theinnovati0nlab782]

I think it's generally a great idea, giving how cheap you can get these modules at - these days. It really depends on what you are looking for. You can find good quality MOSFETs, diodes, high voltage electrolytic capacitors, high-frequency transformers, power inductors, etc. You can get the used modules for about $15 on ebay! 👍😎 The Innovati0n Lab 💥