DIY Mini Lab Bench Power Supply (With Switchable DC and AC Input)

4 роки тому

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...

КОМЕНТАРІ: 801

@1TylerM 3 роки тому

Dude - parts list, 3D print, laser cut, and blueprints - that is the way EVERYONE should be doing their tutorials - really good job!!

@ciprianpopa1503 Рік тому

Sure, as if anyone has a 3d printer at home.

@mannygenetics374 Рік тому

@@ciprianpopa1503 3D printers are really affordable these days... I got one for £180 and it is great

@andylopez1072 Рік тому

@@ciprianpopa1503there are also some companies that can print whatever file you send to them. Usually that's at an affordable price

@tshvahn 11 місяців тому

Literally has a blueprint to hand cut it...

@tjkoker 3 роки тому

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!

@forageandforge 4 роки тому

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!

@skylabby 4 роки тому

So glad to see you start up your videos again.. keep them coming ...we love em.

@Solipsfilm 4 роки тому

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 роки тому

@@Solipsfilm de ender 3 is een geweldige 3D printer. kijk online voor mods om het nog beter te maken!

@chanceoverholt921 4 роки тому

For some reason I cant download the file on thingiverse?

@muxallopeniot9194 3 роки тому

This is the best DIY Power Supply video I've seen on UKposts. You can tell you put a lot of time and work into it thank you.

@IkkeiOdaira 4 роки тому

YES!! Now the development of the monster battery pack kit will speed up by 1000x!!!!

@Gamer-nc8qp 3 роки тому

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

@kahveciderin 4 роки тому

Just what I was looking for a week, thanks!

@mahatmadoo2566 4 роки тому

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.

@divyajnana 4 роки тому

Great video, and thank you for the case design! Everything looks great.

@thedubiouswizard 3 роки тому

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.

@gamesnic 4 роки тому

Yes! Another Video from Kralyn. I love all of your projects so please keep it up! Especially your powerbank was really cool.

@MrBrassporkchop 2 роки тому

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

@publicmail2 4 роки тому

Good job, I think you will find holding the soldering iron still will give better results and better heat transfer.

@lifeselectronic 4 роки тому

“You are amazing, just keep going bro

@balrajgorak7243 4 роки тому

Though you take time, your projects are perfect...

@engineer0239 4 роки тому

This channel deserves SO MUCH MORE attention! Great projects, well explained, so much effort! Just thank you m8!

@jlwatjr 2 роки тому

Future youtubers take note - this is how a tutorial is done. My compliments. Awesome video.

@BritishJax 4 роки тому

I feel like id back anything you make on kickstarter my man. Keep up the good work

@billygraham3064 4 роки тому

Please come out with more videos.. I love your type of work, Thank you!

@theonlywaytogta6665 Рік тому

Dude, I really liked this video. You took great pains to explain every step which I really appreciate. Meticulously executed - well done!

@MakerMike-bx5ms 4 роки тому

Nice! Very nice compact unit. Thanks for sharing!

@kralyn3d 4 роки тому

This project came to be because I wanted a portable, accurate and versatile power supply, and nothing online satisfied my needs. I hope this video can help some of you to make your own in case you need a solution like this. Feel free to ask me any questions in the comments. I will try to answer them to the best of my abilities.

@popvotocek 4 роки тому

Man, every video of yours is like birthday to me. I am 15, I watched your power bank vid like 50 times already and now I am going to build it. I learned so much from your videos and electronics is my new passion. Thank you

@jeffdughman9741 4 роки тому

nice work sir, thanks for the parts list :)

@ruolanace5241 4 роки тому

sir,The 3D print file can be share?

@dragoro3033 4 роки тому

Hey man oh, I've been looking for the same thing for a very long time. Thank you so much for providing this. I still plan on designing my own version but I'm very proud that somebody has finally made something this elegant with the technology available to us. I wish you the best and I can't wait for the next one

@kralyn3d 4 роки тому

@@ruolanace5241 Both google drive link and Thingiverse links are now active.

@nickg9215 4 роки тому

Great Project, very well explained walkthrough! Keep up the good work

@shawn8054 4 роки тому

Fantastic and clear step by step guide, thank you!

@jorgegb1022 4 роки тому

Excelente proyecto, tendre muy en cuenta tus recomendaciones, tus ideas son un verdadero agassajo en mi mente

@rikkimaru7705 2 роки тому

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.

@PeterCCamilleri 4 роки тому

A very inspiring project. My needs are a little different but this project gave me lots of ideas.

@MadLabZ 4 роки тому

Outstanding, looks great thanks for all of your hard work!!!

@Brandon-rc9vp 4 роки тому

great video and many thanks for all the additional information and links provided!

@mcdirty311 4 роки тому

Love it, just what I needed. Thank a lot

@josephdragojevich7041 3 роки тому

you did a very fine job on this sir good job!

@orenrob1914 4 роки тому

You're a rockstar Kralyn! Thanks

@34gw68 4 роки тому

I love your channel... Covers always looks clean And diagram was awesome..

@AoShi 4 роки тому

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！

@samykamkar 4 роки тому

Nice build!

@johndoex421 3 роки тому

A comment from this guy tells a lot 🔥

@milkman2143 2 роки тому

The man himself

@johndawson6057 4 роки тому

You're finally back! Hello and welcome!🙂

@science2physics589 3 роки тому

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 . 👍👍👍👍

@prateekmahajan1929 3 роки тому

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 😅.

@matthewseals8110 4 роки тому

This is awesome man! Thank you!

@BikesBlades 4 роки тому

That's a cool project, thanks for sharing it!

@paullucasjr 4 роки тому

oh man-so cool.will save for future project this fall or winter

@braselectron 4 роки тому

Thank you for sharing. Excellent solution.

@felixsantiago6775 3 роки тому

i really love it and i know you encourage us to make one of this .thank you keep uploading video .

@j.lietka9406 4 роки тому

awesome build & video! thank you for sharing

@eddyyu7091 4 роки тому

Oh, really a work of art !

@KingJellyfishII 4 роки тому

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)

@mfmr200 4 роки тому

Wow.. This is beautiful

@jonathanwinegar1221 4 роки тому

This is amazing! Gonna have to give this a try

@colossalbigfoot256 3 роки тому

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.

@Timh-hx2le 4 роки тому

A new Video! I love you're videos, please make further!

@PolakeXD 4 роки тому

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.

@TheRainHarvester 4 роки тому

If you use dc in, how does the premade part with the screen handle a request for higher voltage?

@alienw99 3 роки тому

I like your approach! Nice job!

@elrickking9293 4 роки тому

Thank you for sharing this.

@Skagenin 4 роки тому

This is an excellent video, i am going to build one, thank you :-)

@TehButterflyEffect 4 роки тому

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.

@FailureIsOptional 4 роки тому

Very nice! thanks for all the sharing!

@grizmileham7029 4 місяці тому

This was amazing, thanks!

@muneebashfaq 4 роки тому

Beautiful Project

@SeanLynchXY 4 роки тому

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...

@rays.2480 4 роки тому

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.

@Ivar1231 4 роки тому

This is next level stuff 👍🏻👍🏻💪🏻

@Mad_gamers323 4 роки тому

Well done my friend great job

@stevedonalson5675 4 роки тому

Very nice and compact design.

@contra81 4 роки тому

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

@numberyellow 4 роки тому

Your projects are cool as hell....but your soldering technique is genuinely terrifying.

@shizu_chan_ 4 роки тому

I was also worried about it. His soldering technique is worst commercial product level.

@ReneStover 4 роки тому

I see this so much of the time anymore, don't they teach soldering in electronics programs anymore?

@numberyellow 4 роки тому

@@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 роки тому

Soldering don't come much worse than that. ;)

@MatSmithLondon 4 роки тому

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...)

@aksdiyprojects1999 4 роки тому

Good and neatly project.. keep it up..i loved it..

@charlysstore 4 роки тому

good work, in my opinion the best case by connectivity in UKposts

@timeobserver8220 Рік тому

You're a great creator. Every time is see one of your vids pop up in my feed it's a welcomed surprise.

@CreativeChannel-KST_VN 3 роки тому

I really like what you do. Worthy to follow

@ilegalanimacion 4 роки тому

My respects man! Just wanted to know how you learn all this!

@rohithnechikkunnan8374 4 роки тому

Beautiful project 👍

@khuludanshori9493 4 роки тому

Keep it up. I love it and you are great

@anandmagsardorj3186 4 роки тому

Woow, your project is so amazing

@burnzy56469 4 роки тому

Amazing content as usual

@wajdankhan7550 3 роки тому

I appreciate your work thanks a lot

@MuhammadOwaisKhan83 7 місяців тому

👍 Great Job 👍

@toolivan 4 роки тому

Excelent work. Congrats! 👏👏👏👏🤔🇦🇷

@badhonebrahim7707 2 роки тому

you always make qualityful DIY video.

@stevetobias4890 3 роки тому

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 2 місяці тому

The fan idea sounds smart. How would you do it if you made this modification?

@yukashy 3 роки тому

WoW... Nice project! Hugs from Brazil. 🇧🇷

@fortheregm1249 4 роки тому

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

@icrazylive 4 роки тому

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 3 роки тому

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.

@electronicstuff6355 4 роки тому

Man, this video is so cool!

@KennyTrussell 4 роки тому

Very nicely done!

@euariaeu8873 4 роки тому

Interesting..now i can use my knowledge on electronics.too bad i dont have experience on 3d printer.

@handicapitation3250 4 роки тому

He includes the 3D print files in the description. The hard part (designing in CAD) has already been done.

@rawux1228 4 роки тому

Just buy cheap project box on ebay or ali

@Vbeck56 3 роки тому

Dude, Great work. You inspired me to make one.....

@jimkimbrell4878 19 днів тому

Great job man

@philliptoone 4 роки тому

I just found this video today and liked and subscribed.

@yv6eda 4 роки тому

Great project!

@Newb1eYou_ 4 роки тому

yes new vid i appreciate your invitations

@watosmate8935 2 роки тому

Gorgeous

@ManiekGSF 2 роки тому

Nice job my friend !!!

@leonano4976 4 роки тому

Awesome work

@pdk005 4 роки тому

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!

@williamhart4896 4 роки тому

Nice project man

@riccardoz2953 4 роки тому

Good idea to assembly circuits out of the shell in a box that fit your needs. a couple of hints: add a fusebox to cover the hivoltage cord AND in another place the outputs in case of a short of the load, in an accesssible side to blast em in case of failure; add a layer of insulation using a shrink tube on 220 terminal. use color coded wire inside to know what wire is carring what. Due it's a tool to be moved , fix condensers and other big elements with hot glue (couse on transportation\ accidentally falls those boards arent assembled and builded for a mobile use). on terminals connection glue is not a solution : prepare a pcb board, and use it (with addictional screws) to add mechanical resistance otherwise in frequent use those terminal will unglue form the chassis. best regards!