DIY Mini Lab Bench Power Supply (With Switchable DC and AC Input)
Ғылым және технология
This video will show you how to make a small yet functional lab bench power supply, with the added feature of being able to power it from any DC power source anywhere between 3 and 50V.
Warning: Working with 110V or 220V is extremely dangerous without proper knowledge. Please consult a professional if unsure. I am not responsible for injuries or damages caused by this power supply during build or use.
Documentation and script: drive.google.com/drive/folder...
3D print, laser-cut, and engineering drawings: www.thingiverse.com/thing:383...
If thingiverse isn't working, use this link: grabcad.com/kralyn.3d-1/models
Part links:
(Amazon Links are affiliate, they support the channel with NO EXTRA cost at your end)
AC-DC 36V 5A 180W Switching Power Supply:
Amazon: amzn.to/2Zhea7i
eBay:www.ebay.com/itm/High-Power-A...
UC Tronics 50V 5A step down converter:
Amazon: amzn.to/323GRBI
eBay:www.ebay.com/itm/US-New-DP-50...
Banana Plug female:
Amazon: amzn.to/2ZqJQCn
eBay:www.ebay.com/itm/10Pcs-Speake...
3 Pin On off On switch:
Amazon: amzn.to/324MQWR
eBaywww.ebay.com/itm/5-pcs-SPDT-O...
5.5mm female DC jack:
Amazon: amzn.to/2ZvNWcs
eBay:www.ebay.com/itm/DC-In-Line-P...
80x10mm 12v Fan:
Amazon: amzn.to/2ZqKAYb
eBay:www.ebay.com/itm/12V-DC-80x10...
Other parts are salvaged from old electronics.
Music used:
_________________________
endless summer by Del. / del-sound
Creative Commons - Attribution-ShareAlike 3.0 Unported - CC BY-SA 3.0
Free Download / Stream: bit.ly/_endless-summer
Music promoted by Audio Library • Endless Summer - Del (...
On the Way by Vlad Gluschenko / vgl9
Creative Commons - Attribution 3.0 Unported - CC BY 3.0
Free Download / Stream: bit.ly/_OntheWay
Music promoted by Audio Library • On the Way - Vlad Glus...
Almost Original (Instrumental) by Joakim Karud / joakimkarud
Music promoted by Audio Library • Almost Original (Instr...
Пікірлер: 804
Dude - parts list, 3D print, laser cut, and blueprints - that is the way EVERYONE should be doing their tutorials - really good job!!
@ciprianpopa1503
Жыл бұрын
Sure, as if anyone has a 3d printer at home.
@mannygenetics374
Жыл бұрын
@@ciprianpopa1503 3D printers are really affordable these days... I got one for £180 and it is great
@andylopez1072
Жыл бұрын
@@ciprianpopa1503there are also some companies that can print whatever file you send to them. Usually that's at an affordable price
@tshvahn
Жыл бұрын
Literally has a blueprint to hand cut it...
@SingTodayi
2 ай бұрын
At the current moment this project is 100% not worth making - because you can buy 60v 5A power supply at a cost 2-3 times less than this DIY device.
I'm 62 years old, retired, and been working with electronics since tubes were in fashion. I really enjoyed this video. While I can afford a ready-made power supply, you've inspired me to make my own variable voltage supply. Thanks!
Omg, I'm literally just printing your 18650 powerbank the whole day! Specially bought an ender 3 to make this project. I'm really excited to make this one too in the future. Love the way you explain everything and make it available for everyone to make. Thanks and keep up the good work!
@mehdi2344
4 жыл бұрын
@@Solipsfilm de ender 3 is een geweldige 3D printer. kijk online voor mods om het nog beter te maken!
@chanceoverholt921
4 жыл бұрын
For some reason I cant download the file on thingiverse?
This is the best DIY Power Supply video I've seen on KZread. You can tell you put a lot of time and work into it thank you.
Your channel is awesome. Step by step instructions, parts list, script, models, and documentation? You've created the perfect place online to learn and follow along.
So glad to see you start up your videos again.. keep them coming ...we love em.
Very informative, I love that you seem to have done all the difficulty out of finding a decent way to make a power supply that has some awesome features. Thanks for your video!
Yes! Another Video from Kralyn. I love all of your projects so please keep it up! Especially your powerbank was really cool.
This channel deserves SO MUCH MORE attention! Great projects, well explained, so much effort! Just thank you m8!
Hey I love how straight forward you explain everything. The problem is usually people will overcomplicate it or dumb it down so much the video is just too long. Right exactly my speed. Which is interesting because you're clearly well beyond my capabilities given how you design these things. Looking forward to that Positron 2.0
Dude, I really liked this video. You took great pains to explain every step which I really appreciate. Meticulously executed - well done!
Future youtubers take note - this is how a tutorial is done. My compliments. Awesome video.
YES!! Now the development of the monster battery pack kit will speed up by 1000x!!!!
@Gamer-nc8qp
4 жыл бұрын
man the old one is just too tight to do solders and shit honestly he should kickstart the case and the circuit boards so if people source cheap 18650s itll be a cheap powerbank lmao
You're finally back! Hello and welcome!🙂
I watched all your videos today and subscribed!!! 听口音应该是华人吧?真心佩服,加油!期待更多视频!
I feel like id back anything you make on kickstarter my man. Keep up the good work
Just what I was looking for a week, thanks!
Great video, and thank you for the case design! Everything looks great.
Good job, I think you will find holding the soldering iron still will give better results and better heat transfer.
Thank you, I live off grid in Hawaii. I have been going crazy trying to find one that I could run off my DC system. I was dreeding the thought of converting DC to AC so I could power a DC power supply. I have just gotten by using whichever old phone charger that came closest to the current need. I'll be doing this tomorrow, Mahalo Brah , your a Champ.
Great Project, very well explained walkthrough! Keep up the good work
Great fabrication, really enjoyed your process, and design. I've got the drok equivalent, (almost) and now, can realize how to actually maximize it due to what you have done. Thank you.
Fantastic and clear step by step guide, thank you!
Your projects are cool as hell....but your soldering technique is genuinely terrifying.
@shizu_chan_
4 жыл бұрын
I was also worried about it. His soldering technique is worst commercial product level.
@ReneStover
4 жыл бұрын
I see this so much of the time anymore, don't they teach soldering in electronics programs anymore?
@numberyellow
4 жыл бұрын
@@ReneStover I have no idea. I mean, i only did electronics in high school, so i can only speak for that.. almost 20 years ago... they taught me to solder correctly. I've only gotten better at it since then. I don't know if they cover soldering in high school anymore, or college, or vocational school....maybe they do, maybe this guy was taught how to do it right, but doesn't care, or sucks at it.. Or maybe he's self taught, and learned how to solder from watching some tit on youtube do it wrong. I honestly have no idea. What i do know for sure is that his soldering technique is genuinely terrifying.
@Graeme_Lastname
4 жыл бұрын
Soldering don't come much worse than that. ;)
@MatSmithLondon
4 жыл бұрын
The solder job at 8:49 was horrendous, although some of the other joints were not QUITE so bad. Some of the soldering footage was at 2x speed though, so it looks like he withdraws the iron too early but may not be quite as bad as it seems. (Still, I agree, the results are not fabulous by any means. This is a problem when working with mains, earthing, etc...)
Nice! Very nice compact unit. Thanks for sharing!
Outstanding, looks great thanks for all of your hard work!!!
“You are amazing, just keep going bro
Please come out with more videos.. I love your type of work, Thank you!
Though you take time, your projects are perfect...
I love your channel... Covers always looks clean And diagram was awesome..
great video and many thanks for all the additional information and links provided!
You're a rockstar Kralyn! Thanks
The power supply that you made is awesome and actually the biggest advantage is the dc input . Thanks for the project. I think that I have to make a new power supply . 👍👍👍👍
A very inspiring project. My needs are a little different but this project gave me lots of ideas.
Great work! Also use a mosfet for reverse polarity protection from the DC input as that is much better than having a blown diode or damaged battery 😅.
A new Video! I love you're videos, please make further!
Excelente proyecto, tendre muy en cuenta tus recomendaciones, tus ideas son un verdadero agassajo en mi mente
You're a great creator. Every time is see one of your vids pop up in my feed it's a welcomed surprise.
Love it, just what I needed. Thank a lot
you did a very fine job on this sir good job!
That's a cool project, thanks for sharing it!
Nice build!
@johndoex421
3 жыл бұрын
A comment from this guy tells a lot 🔥
@milkman2143
3 жыл бұрын
The man himself
Your engineering skills and creativity are inspiring to watch. I definitely enjoy the videos where you explain better than the ones with words on the screen and music. Well done!
Three things: great project, mad props for using standard units instead of metric, and for Proverbs 9:10. Major thumbs up from me. I'd build one of these if I had a printer. I have needed a DC power source before while diagnosing electronics.
I like your approach! Nice job!
awesome build & video! thank you for sharing
This is an awesome build. I think a flip down handle underneath so you could flip it down angling the box/screen upward for easier viewing. Just a thought.
Finnaly a other excellent video! :D
I finished building this PSU today and I have to say that it is really awesome but I installed an BeQuiet Silent Wings 3 12v Fan to cool the entire thing more efficient. If you want to get a 3D printer that is cheap and easy to repair, then I recommend the Creality Ender 3 pro. I bought this printer for 120$ from ebay and it just worked fine, after I printed 3D upgrade parts to improve the 3D printing capabilities with this printer.
WoW... Nice project! Hugs from Brazil. 🇧🇷
i really love it and i know you encourage us to make one of this .thank you keep uploading video .
Oh Boy, I am glad to see this video, i was just the other day debating to build me a CC / CV bench power supply.. but i was going to build it with 2N3055 Transistors. but now that i see this one, it will be much easier and efficient.
What a cool project! Thanks for sharing!!!! :) I need equipment too, and even used equipment is too expensive. All sorts of ideas come to mind, a frequency generator, oscilloscope, electronic microscope for small component soldering...
Thank you for sharing. Excellent solution.
This is awesome man! Thank you!
oh man-so cool.will save for future project this fall or winter
you always make qualityful DIY video.
I really like what you do. Worthy to follow
Wow this is amazing! I'm envious of that power supply but I can't really justify the cost as I already have two simpler ones (cc&cv, no power setting etc)
Well done my friend great job
Oh, really a work of art !
Very nice! thanks for all the sharing!
Nice build, may I suggest using a thermal speed controller for the fan instead of a switch or just auto full on. This way you prolong the life of the fan and also have the appropriate speed to match the temperature needed to be cooled. Edit** I am looking to do something similar with a toroidal transformer that has 2 suitable secondary windings that will give me a 5v Fast Charge USB and 2x 12v outputs as well as two additional windings (with on/off switches of course) to use as a dual variable supplies
@soysmc2933
5 ай бұрын
The fan idea sounds smart. How would you do it if you made this modification?
Very nice and compact design.
You are the MAN! wish i had this vid last year, i couldve made a much better bench psu for myself. Def on my list to do soon
good work, in my opinion the best case by connectivity in KZread
I just found this video today and liked and subscribed.
Wow.. This is beautiful
Good and neatly project.. keep it up..i loved it..
This is an excellent video, i am going to build one, thank you :-)
Amazing content as usual
Very nicely done!
This is a fantastic video! Really nicely done. Although, I highly doubt you saved any money by doing it yourself, the fun was probably worth it.
If you use dc in, how does the premade part with the screen handle a request for higher voltage?
Kick-ass project and video. Subscribed and bell icon clicked!
Woow, your project is so amazing
This is next level stuff 👍🏻👍🏻💪🏻
I really like the way you make great videos
Excelent work. Congrats! 👏👏👏👏🤔🇦🇷
Keep it up. I love it and you are great
This is amazing! Gonna have to give this a try
My respects man! Just wanted to know how you learn all this!
Man, this video is so cool!
I love this bench PSU. I liked the beginning explanation up until the shock diote. From this point on, we all might appreciate each step explained as each step before.
@kennmossman8701
4 жыл бұрын
It is a Schottky diode but a power silicon diode will also work - it just has a higher voltage (0.6 versus 0.2)
How to solder a 20amp Diode : HOLD THE GOT DAMN IRON ON IT UNTIL IT GETS HOT ENOUGH AND SOLDER *FLOWS* onto the leads (2-4 seconds) that being said i was VERY impressed by how you desoldered that SMD LED , i couldnt do that if i tried :D
@frostiimoon
4 жыл бұрын
Forthereg M if you have a chisel tip that is big enough and don’t need the SMD LED, just slap the iron on both pads
@MBrulla
4 жыл бұрын
Doesn't take much - big blob of solder on the iron tip, touch the LED, pull it off. Most of them time they're even salvageable, but not necessary for this.
Beautiful Project
I dont know how i get here, but im happy now, new sub!
This was amazing, thanks!
Beautiful project 👍
Nice job my friend !!!
Very nice video!! Great info!
Very good! thumbs up THANKS
Thank you for sharing this.
i like all your stuff .... pretty cool
Dude, Great work. You inspired me to make one.....
Good video, you teach me lots of things. If you just buy, you don't learn much, and are not sure if all the safety features are in place.
OMG YESSSS I asked for this :)))
Wow great project!
Looks nicer then most of the small power supplies on the market. .