ATX Bench Power Supply - Convert a Computer Power Supply

День тому

A computer ATX power supply can be easily converted into a versatile and powerful power supply for your workbench. In this video, I’ll show you how easy it is to make that conversion.
Full Article at dronebotworkshop.com/atx-benc...
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A power supply is an essential piece of equipment for any electronics experimenter. While you can get by with USB adapters and “wall warts” having a capable high-current source of 3.3, 5, and 12 volt DC power will take your experimenting to another level.
Commercial power supplies with these sorts of current capabilities can be very expensive, however, there is a much cheaper alternative. With some simple wiring, you can convert an ATX power supply from a desktop computer into a reliable and capable workbench power supply.
Even if you need to purchase a new ATX power supply this method is still a lot cheaper than buying a commercial workbench power supply. And chances are that you won't need to spend any money at all on the ATX power supply, I salvaged mine from an old Windows XP computer and it works just great.
There are two types of ATX power supplies commonly in use, I will show you the differences between them. Either model can be used in this project.
Here is the Table of Contents for the video:
00:00 - Introduction
04:36 - Parts used in Project
10:06 - ATX Supply pinouts
13:46 - ATX Supply Inside
16:17 - Testing ATX Supply
19:14 - Hookup Diagram
22:48 - Building the Power Supply
30:17 - Testing the Power Supply
31:59 - Adding a Power Meter
One note - there are many ways to do this and I outline a few of them in the video. Several methods (including the one I used) involve opening up the ATX power supply. If you do that BE VERY CAREFUL as some of the components in the supply can retain a high-voltage charge for hours or even days after the supply has been unplugged.
If you are unsure about opening up a power supply (or if you have a new one still under warranty) don’t do it, you can still build this project another way. I go over that at the conclusion of the video.
As always there is an article on the DroneBot Workshop website that accompanies this video.
Hope you find this video useful and if you haven’t already please subscribe to the UKposts channel. Thanks!

КОМЕНТАРІ: 1 400

@seymourbutz8513 Рік тому

Finally, finally, a video that actually teaches something, no noisy background music, no video only type instruction, no heavy accent, no fast talking and excellent camera angles, along with excellent diagrams and presentation. Yes, I wish I had you as my high school electronics teacher. Maybe I would of attended more classes and actually learned something. Keep up the great videos.

@msmith8401 Рік тому

Lol, I wish I had a Electronics class in High School

@unknownhntr7918 8 місяців тому

Me during highschool: *evident stare that doesnt know what an electronics class is or if it even exists...

@user-vp5ok8mh8b 4 місяці тому

❤спасибо

@davidcole5979 3 роки тому

I am 72 years of age, and I so wish you had been a teacher at my school way back in the 1960's. Every aspect of your youtube vid is 100% perfect, no music, clarity of annunciation is great, presentation cannot be faulted, even at my age I am still learning thanks to you. Please dont' stop. Thank you.

@blissbouwerij4033 3 роки тому

Spot quiz! Q. How many times did he say power supply?

@cinarsinan 3 роки тому

Hello sir, I hope I will be like you at your age, respect. I wish you all healthly life

@domingosrodrigues4851 3 роки тому

@@blissbouwerij4033 Who cares?. I don't!

@valcye 3 роки тому

Thanks. i got 12 years to catch up

@alexhoffman5511 3 роки тому

72years and 72 likes. Perfectly balanced, as all things should be.

@dandyeman781 9 місяців тому

We decided to take a drink every time he said power supply my buddy died it was the greatest idea ever

@shotadzagnidze6600 3 роки тому

High Class of this kind of teaching videos. no silly music, good diction and brief explanation. Thank you

@layton3503 3 роки тому

And No frantic editing, between every line of dialog

@user-hg2sm6wq6v 2 роки тому

"Brief"

@callmealex69 2 роки тому

The music is always so distracting and loud

@matthewyoung4877 Рік тому

It's amazing how so many of us want these type of videos yet so few produce them even though we almost always voice our opinions on the unwanted music and editing of the majority of poor quality videos. Keep up what you are doing because you are one of the few that actually care what us the viewer actually want to see and learn from.

@kensmithmail 3 роки тому

I award you 5 stars for your videos, clear voice, no stupid music, perfectly explained, wish I could give you 1000 likes, thank you.

@TheRhiny 3 роки тому

It's so refreshing to see someone able to keep it simple while being specific and relevant, thank you.

@johnsweden8128 3 роки тому

Hi Bill, You have one of the most listening-friendly, patient, relaxed and slow tutorial voices I've heard. I thoroughly enjoyed this tutorial and your easy-to-follow instructions. Well done and thanks.

@drteeth7054 5 років тому

Wow! Am I lucky to have just found this channel. The standards of construction and presentation are stellar! The dialogue is clear and even though I have been into electronics for decades, I am still learning.

@erfut 5 років тому

Thank you for such a simple explantion, informative video that anyone can easly follow. Great presentation.

@crevard203 8 місяців тому

I think you are the teacher we all wish we had, I'd be an engineer if I saw this in the day. Thanks!

@ddubbs1453 2 роки тому

I would have to say this is one of the best tutorial video’s I’ve seen on UKposts yet. Great video, easy to follow and very informational. Fantastic job.

@jimmyguy428 5 років тому

Thank you so much for this informative video! I'm in need of a bench power supply, but am on (disability) a low budget. I do have a few desktop power supplies laying around so this will help me immensely.

@chemicalcorrosion 5 років тому

Amazing. I was literally taking a break from building the same style PS. I was researching the different 5V lines. Thank you so much for your informative videos. Now I will add the volt/amp meter. I enjoy your videos so much.

@frankohara2129 3 роки тому

I really like the clarity of your explanations and with no annoying music while you speak. I am also a late learner 76 years old. Slowly but surely.?

@kenball1980 4 роки тому

Amazing video! Thank you so much. Looking at this power supply and thinking of how to turn it into a bench supply felt like a daunting process. Within 10 minutes of absorbing your knowledge, I feel confident. Very nicely thought out and explained.

@waliboy3382 3 роки тому

Brilliant! No wobble cam, no annoying music. Well scripted, well lit and well presented. Thank you! The ATX PSU that I "rescued" from a long since redundant PC now has a new purpose in life. Keep up the excellent work.

@paulmichaelfreedman8334 4 місяці тому

used ATX power supplies are also excellent for powering larger led strips and matrices.

@grandbricolet 4 роки тому

Nicely done. One of the few technical programs that merits production credit. Outstanding audio and camera work.

@patrickmorin7693 4 роки тому

This is absolutely the best electronic teacher and course, display I have ever seen. During this covid 19 crisis I seem to have time on my hands and this project really fits into my plans as I often need to check amp draw on automotive fans, pumps and stuff.

@jimbossemi-customs3129 2 роки тому

Your way of explaining everything is second to no one's. I would love to have your calm demeanor. I've learned so much from you are a semi-newbie to electronics. Well done Bill!

@gangleweed 3 роки тому

Fantastic presentation.....this is so user friendly especially for those that are relatively new to anything electronics. I like the coloured voltage levels etc and the wire paths with the visual presentation of the inputs and where they go to......even my long deceased granny could follow this plan and she was into crystal sets in the 20's.

@walter37956 2 роки тому

Very clear & simple wiring video with many cautions included. Gives very safety assurance in wiring-up step by step. TQ especially on the part on volt-amp meter wiring caution. Pl continue your generous effective teachings

@tinkmarshino 5 років тому

OUTSTANDING! I have been waiting for you to do this video.. I have watch others do this but most of them are fly by the seat of your pants young fellas.. I wanted to make one for my new hobby (at 66 I am teaching myself something new!!) I like to see others ideas but only follow those men I think know what they are doing. And you are one of those men.. I really thank you for all of your hard work in making these little videos (it really shows) thay have been an immense help to me.. as I am a little slower then I was when I was a younger man.. But I an not through yet... Carry on your teaching is very much appreciated..

@pravinjethwa7681 5 років тому

I love it I wanted. To lt long time ago With limiter parts Thanks giving me to do project

@adin8461 4 роки тому

@tinkmarshino... My story precisely! Cardiologist by day, projects on weekends at 66!! Thank you for such well-done clear instructions for the project!

@f.m.vanvliet7645 4 роки тому

Tank you for this outstanding and excellent clear video, it was clearly explained,and i am planning on te build it

@adebayoagbaje 3 роки тому

You broke it down completely and made it look fun and easy. You are a great instructor. Thank you !

@njsurf1973 3 роки тому

Thank you. I really appreciate the step-by-step, easy to understand, and well illustrated presentation of your videos. As a beginner in the world of electronics, It makes it incredibly easy to get started. I literally harvested an old power supply last week and was wondering how I could do this.. and like magic one of your videos popped up.

@jimbossemi-customs3129 2 роки тому

I agree with everything you said, and a semi-newbie I haven't found a more educational channel than this one, and his calmness actually soothes me.

@treposillo 5 років тому

Your videos are great, good quality and very well explained. Keep up the good work.

@p.g.pg38 5 років тому

Extremely clear, extremely clean... as usual ! Always a great pleasure to follow you. Thanks a lot.

@user-sr9ii7ws1g 29 днів тому

Please teach me the diagram of input voltage selector

@silvijokroslin1432 3 роки тому

Thank you for all your videos. I really appreciate it. You do everything in detail and you do your best to explain as simple/complicated as it is/gets. Thanks again and respect

@TheBnjmnlrd 4 роки тому

Thank you. This noob to electronics is understanding many things I have been struggling with. I appreciate the way you are teaching.

@Vermilicious 5 років тому

Some newer power supplies have several "rails" to separate the load. If you want to pass through a lot of current, you should probably consider which wires you use, and not just pick the ones on the motherboard plug. Also, if you don't want to open the power supply, there's no stopping you from simply leaving things unconnected. Some power supplies also have modular connectors, which makes it even easier to pick the ones you want. In any case, these things are so easy to find. Nice video, showing how easy it is to use.

@Camerashooter 4 роки тому

Thank you sir... thank you for posting this video!!!! This has helped so much! Thanks again.

@gazaziho 5 місяців тому

You are a calm, decent and respectful man. The explanation is clear and most importantly there is no background music. Thank you very much. My only objection is to adding a resistor , as it constitutes an unnecessary load to the circuit, especially since it is connected in parallel.

@Paul-rs4gd Рік тому

I built one of these years ago and it was very useful. Instead of the load resistor on the 5V line, I attached an old style, filament light bulb. I mounted it on the PSU box and it helped inspect circuit boards at times. I also added a custom 0V dock on the box for my multimeter - one wire frequently needs to be grounded.

@djpenton779 Рік тому

Very useful, thanks Bill. A local computer repair shop here in Ontario gave me two older (but functional) ATX power supplies for free. I used these to make to PID controlled heating devices, one for heat bending guitar parts, and one for a 3d printer filament dryer. Of course, I used the guidance in this video for the builds.

@als1023 3 роки тому

In the midst of building this with a 3D printed case, thank you very much for a comprehensive and detailed overview, so helpful and useful in planning our project !!

@Kimdino1 2 роки тому

Don't forget to leave vents for the fans cooling air to escape or it will overheat.

@als1023 2 роки тому

@@Kimdino1 Yes lots of vents , printed a 3D case holder, all went well !

@Kimdino1 2 роки тому

@@als1023 Sorry, I didn't look to see how old your post was... duhhh! Anyway, glad it went well. I've a mind to use up an old ATX supply this way but I'll have to content myself with making the case from plywood.

@als1023 2 роки тому

@@Kimdino1 Good luck , thanks for posting, ours has 5,12 and 24 volts, my boys use it for car stuff etc. Great circuit tester.

@savagedias 4 роки тому

This is a very informative video with clear explanations & visuals. I've been storing a few power supplies for longer than I would like to admit & its time to make one of them useful. Thanks for posting!

@hankosaurus 3 роки тому

Splendid presentation! Excellent illustrations, articulation, and explanations. Last night I took apart an old PC to destroy the HDUs. I saved the power supply with in mind to use it as a bench supply. Came here to find out how and hit gold.

@chuckintexas 5 років тому

Excellent vid ! I'm looking at adding a bench power supply to my shop, and was wondering if one of these would make a good solution to meet that need . The clear well-measured narration was a GREAT help in following along with what you had in mind. All the BEST - and thanks again for a great vid ! - C.

@TheNikolaschoulakis 5 років тому

Thank you for taking the time as always to make such a diligent video.

@just.observer4648 3 роки тому

it's amazing how organized your workstation is

@allanlacey166 3 роки тому

I think this must be one of the best teaching videos on the tube, I found the presentation clear concise and informative. Well done Sir !!!!

@ravia2054 4 роки тому

A wonderful video with clarity in your speech and technically superior!. March on Sir with your great service

@rogersoard1945 4 роки тому

You, sir, are my new favorite channel!

@melkitson 3 роки тому

I avoided this video initially due to the length of the video. Having wasted a lot of time elsewhere I came back to watch this one. I now feel comfortable, safe and confident to proceed with this project. Clear, concise and intelligible comments and well shot video with good circuit diagrams. Thank you.

@johanmare6297 2 роки тому

This is one of the few reasons I am still coming to youtube. Thank you for sharing your time and knowledge.

@davidyarkan8196 5 років тому

Thank you for another great video! I have built a similar bench power supply from an old ATX I had about a year ago. It has proven extremely useful and was quite easy to make. If you are at all interested in electronics, just do it! It's easier than you think, just be safe. Also, I would suggest adding a USB port to the 5V line, as a power outlet for USB connected devices (Arduinos, for example). It makes the bench a bit more useful.

@antunvidakovic9926 5 років тому

I'm not sure but ,if anyone else is searching for electronic circuit board repairs try Saankramer Electronic Magazine System (should be on google have a look ) ? Ive heard some pretty good things about it and my work buddy got amazing success with it.

@donloughrey1615 5 років тому

Great suggestion on the USB ports. Thanks.

@kb5hxt 4 роки тому

my son just upgraded his computer power supply and let me keep the old one. I'm gonna do this, thanks for the informative vid

@franklinmellott2319 4 роки тому

Well done! Have been thinking of something similar, and this is cleanest I’ve seen. If I could be so bold as to suggest, use that empty white space on the panel to make a “Max current” vs. voltage for easy cross reference. I always forget that kind of thing, so I like to have it right in front of me so I can’t forget!

@cbmamiga5239 3 роки тому

Bravo! You speak low and slow enough for me to follow you. You are, in essence, the Mr. Rogers of the electronics workshop. You make it easy for me to repair the Commodore Amiga's that pass to close my way by your creative prowess. :)

@dizzolve 4 роки тому

20:17 I don't think your wiring explanation could have been illustrated any clearer. That was great

@subbielover9374 3 роки тому

I absolutely agree !

@santorcuato 5 років тому

Thumbs up! Really good teaching, thanks.

@sffitx 3 роки тому

I just discovered your channel and i'm already subscribed because of the calm energy, very calm and soft voice too, people today are so exited that they yell and scream at each others when talking.

@doncardinal9100 3 роки тому

Great video. Love the calm and methodical approach. I wanted to mimic your project so I could have a mobile PS when doing small projects away from my main bench. Plus I just thought it would be fun, and it was. I was also able to find parts around the workshop so the cost was minimal, maybe $30 max (Paid $15 for used 400W, 24 pin PS plus a few small parts). I added the -12V and even a 9V by using a small buck step-down board. The meter makes a nice simple multimeter as well. Thanks again!

@jokkiossaka3306 5 років тому

Very good teacher, thank you for your time, explanation and video!!!

@gsperanza07 4 роки тому

Greetings from Australia, thank you so much for the detailed project, a true gentleman and genius , well explained and excellent show , especially adding the current /voltage display unit, excellent and back - to - basics switching approach , thanks for sharing , can’t wait to make this project, I’ve subscribed, and definitely 200% thumbs up, champion!

@Den_Electro Рік тому

Hi, friend. Watch my video. ukposts.info/have/v-deo/ioN7joCPsZ2LsqM.html

@DanOchiva 4 роки тому

Very well done! Thorough in every respect, full of useful observations, etc. I am happily subscribing and look forward to the next episode.

@grahamwood4145 4 роки тому

Your instructional videos are absolutely first class. Thank you so much for sharing your knowledge like this.

@jeremydennis6988 5 років тому

Thank you so much I love how good your ..🤙

@sololimpo553 4 роки тому

Newbie here... First time on this channel and this is the first video ive watched. For a person (me) who just started this kind of hobby i didnt have any problems understanding what youve explained. From title of project... Parts needed... Illustrated diagram... And follow up on voltmeter... All was explained in layman's words. Even sounded like a person who has lots of patience. I very much appreciate this... Unlike others who presumes that al watching their vids are literate on electronics. Thanks.

@maxwang2537 4 роки тому

This is absolutely outstanding. Informative and crystal clear. Adding to that, there’s an accompanying article, even a printer-friendly PDF version. I cannot ask for more! Thanks great work.

@Den_Electro Рік тому

Hi, friend. Watch my video. ukposts.info/have/v-deo/ioN7joCPsZ2LsqM.html

@timpeterson2738 3 роки тому

Thank you for this video, I'm planning my led arduino Christmas display using an old at myself so perfect timing.

@JoeyGoblins 3 роки тому

I'm so glad I stumbled upon your videos. I graduated with a CS major, only taking a few digital electronics and ECE courses in my time at school so I am expanding outwards in that field and I was looking for a way to utilize parts that I already have. You have made my night.

@PabloGnesutta 5 років тому

Hi man, great video! I love how clear you are explaining everything on your channel. Thanks. I have a question. I made my ATX bench, and all the outputs are ok, but with a slight instability in tension, like +/- 0.02 volts, and when I want to use it to power my servomotors (controlled by Arduino), this slight instability makes my servos jitter very hard. Do you know what can be de cause and/or solution to this? Thanks in advance everyone!

@williamaitken3188 4 роки тому

This guy actually knows what he’s doing and knows how to teach thank you very much

@sky173 3 роки тому

EXCELLENT! I've been hoping someone would share a video like this. This has been so helpful. Thank you for sharing!

@DeckardCain1986 3 роки тому

OMG thank you a thousand times for sharing this stuff. I just found your channel and got subscribed. Greetings from Peru.

@brititalia 4 роки тому

Always great and clear, as usual, Thank you!!!

@best5-4-u-2-c4 3 місяці тому

I'm at 21:45 into this video and have to pause it to say I absolutely love the way your teach.

@graftedin3 2 місяці тому

I was very please at your attention to detail and the clarity of your presentation. You are a natural teacher. Thank you

@REDACT3D 5 років тому

Beauty bud- made one of these back a while ago. I actually had the same sort of issue with the v/a meter! ended up going with 2 analog style gauges with the wiper. Minus the AC - this is a great project for someone getting into electronics. Recently been watching all your Arduino videos to brush up for this camera slider/robot arm I'm working' on ^.^ Gotta say you do a great job explaining things- keep up the good work bud! Smashing that like button!

@jasonmarquette 5 років тому

Excellent Video, Thank you for taking the time and doing this. I'm planning on building one, this has been very helpful.

@Budro4764 4 роки тому

@Jason Marquette Did you build one yet ???

@thebeerdedone7568 3 роки тому

Great video, just subscribed. I'm a 31 year old college student in the middle of an AC/DC basics class. Because of the Covid situation I cant be on campus, I just learned about ammeters and this video is a great visual aid. I'm pursuing an associates in mechatronics, but this video is fueling a desire to continue my education into engineering. Thanks for being on UKposts.

@Enjoymentboy Рік тому

This was a really good explanation and walk through and I wish I had seen this years ago when I first modified one of my spare supplies. It took me far too long to get everything figured out but I managed it and didn't die in the process. In my case I used it to power some LED grow lights and I used the 5V standby line to power a relay timer which would then bridge the PS-ON and ground turning on the lights. It was really handy to be able to have the power supply turned off instead of using a bunch of switched and leaving the supply turned on. This is going back 15 years so well before any wifi based timers were readily and cheaply available.

@GaryParkin 5 років тому

This rocked as all of your videos do. I found your channel when I got into Arduino and I am hooked. Please keep up the great work! Subscribed! I created and 3D printed the control panel. I'll post the files on thingaverse and add a link soon.

@walkswithmight 4 роки тому

I feel the same way!

@gameplayandreview 4 роки тому

Link? As it's been 8 Months.

@porkhunts 3 роки тому

Could someone tell an ignorant novice the fuse rating used please, I can't find it, not for lack of looking

@borsi99 4 роки тому

Thank you very much for your interesting and helpful videos❗️You explain every detail so clear that everyone can understand what you are doing. For me as a hobby electronic your selfmade easy projects are so good. Hope you go on... Regards, Boris🇨🇭

@Den_Electro Рік тому

Hi, friend. Watch my video. ukposts.info/have/v-deo/ioN7joCPsZ2LsqM.html

@arthursimpson6331 3 роки тому

Really love your site, very informative and detailed in your explanations. You make it easy to follow and understand how simple it could be, though it did not seem like that at the beginning. Thanks so much.

@brianconyers6655 3 роки тому

A well thought out and concise tutorial for a useful project for the electronics enthusiast

@caffeinatedinsanity2324 4 роки тому

Just a note: my power supply has a brown wire and this one, if present, needs to be connected on the 3.3V line. Now I need to know if the resistor on the 5v line is mandatory (because the power supply seems to work without it)

@bluecobra109 5 років тому

Outstanding presentation, THANK YOU SO MUCH. I have been on line for years but yours is the first i have subscribed to.

@thekoopagamer4543 3 роки тому

I used this to build my first power supply! This video made it 100 times easier. Thanks so much!

@venkateshks6664 4 роки тому

BRILLIANT! BRAVO! finally a very lucid and step by step video on how to make bench top power supply. Thank you!

@SuperFunkmasterj 3 роки тому

Very nice video, well-explained and thorough. I do have a minor quibble, however. The ATX spec defines the PSO function as edge-triggered, rather than level-triggered. In other words, you do not have to lift PSO to +5V and keep it there - simply pulsing it to +5V will turn on the supply. The spec actually recommends a momentary switch for this function, rather than an SPST as you have used here. Turning off the supply is a matter of holding the momentary switch down for 4 seconds. So one brief pulse to turn on, 4 seconds to turn off. I have not seen any damage to PSO circuits as a result of continuous application of +5V, just saying it's not part of the spec. Personally, I use the ignition switch from a 1974 Chevy Vega (the only part of the car worth keeping) mounted on the side of my case to do the start-up. So far, the PC has not leaked any oil, which confuses a Vega key.

@mikedevita5558 3 роки тому

How do you tell if a particular supply requires a load as in a 8 to 10 ohm power resistor? Thanks

@domainmojo2162 Рік тому

Yep. I enjoyed it very much! Never thought I'd watch an ATX bench power supply video from start to finish, while being fascinated. This was professional and good quality.

@JackSmith-ud9bg 3 роки тому

Never dreamed of this reuse of a computer PS. threw 2 away- well live and learn, thank you Ill be looking for one now.

@MrCareer707 4 роки тому

Got a spare PSU, been wondering how to convert it into a power supply for my Electronics Projects, Thank you awesome video good explanation and I have one of those meters that I've never used too, job done, just waiting for the parts.

@jamesbullock8722 3 роки тому

Can you create a parts list that includes links so we can get the exact parts?

@shifter65 4 роки тому

Wow, this is very thorough! Thank you!

@eberntson Рік тому

One of the most comprehensive and complete videos I have ever seen on UKposts or anywhere. Bravo, and many thx!

@techgautam422 4 роки тому

Excellent video, covering all aspects. Awesome narration and very attractive voice with beautiful pronunciation & punctuation. One of the best diy video I've seen after great scott.

@charliehustle544 4 роки тому

NICE! I've had to quit my job so I can watch your videos. I must say, you are the last guy who needs to ask for subscriptions! I wasn't two minutes into the first one I watched before subscribing. So, allow me to give back. I built such a supply some years ago, but utilized the -12 voltage and an LM338 variable voltage regulator to give me up to 24V and is fully adjustable. The current is limited to the maximum output of the -12V side, 800mA in my case, but it allows me to dial in voltages in between 3.3 and 24V 'cause sometimes you just need something different. Note that zero volts is not relative to ground of the unit; it is actually -12V relative to ground. But that's not the good part... I used a very used and cheap ATX power supply and it quit after about a year. (Could be 'cause I taxed the -12V output.) When I replaced it, I decided that I wanted it to be plug-n-play so I searched for the correct housing and pins. Now I can change out the power supply by unplugging and re-plugging. So, here are the part numbers: Molex #39-01-2201 Plug housing $1.38 as at 1/15 Molex #39-00-0076 Pins 0.22 as at 1/15 These are available at Mouser. Note that you'll need a special crimper for the pins. I'm particularly excited about what I've taken away on the subject of the Arduinos. You've opened up new doors for me on that front. The orderliness of your pegboard and the cleanliness of your bench is frightening. How do you get anything done?

@nortinn Рік тому

Hi Bill. Thank you so much for your detailed and easy to follow instructions. I've been looking for awhile for a tutorial on making my own Work Bench pc power supply. I am 76 years of age. I started in my teens and here I am still learning. I will be subscribing and following your channel from now on. Blessings

@nevyen149 2 роки тому

Junked an old computer recently for the gold and was not only looking for ways to reuse the other bits, but have needed a bench-top 12v power supply for a long time. This is *exactly* the video I was looking for. Thank you!

@tylertian5785 5 років тому

Oh my god this vid is so helpful. I also found a supply. Thank you.

@NavinBetamax 5 років тому

from 28:07 ...........There is a distinct difference in the usage here of the term ------Ground ----- This is actually the minus (- ) ..negative rail. and not to be confused to Ground of the Mains. !!!

@robertcartier5088 5 років тому

Totally agree... The word GROUND should only be used to mean Earth/Ground. The green wire in your mains socket, the one coming in through the AC cord. That green wire is usually connected to the metal case of the power supply unit. It is NOT the same as the black wires! They call it the "0V" rail, as in zero volts. The 0V rail provides a reference point from which the other rails can be measured; that includes the negative voltages.)

@w3mct 3 роки тому

i am in love with this channel, im studying so i can teach my lil man, i know how to do things but terrible at teaching or explaining, so this helps me to put my experience into words.

@Steelplayer59 Рік тому

Thank you for the excellent in-depth tutorial. Your method of wiring of the meter has yet an added advantage. I wired one into a similarly designed circuit, but used the output to supply power to the meter. An inductive spike from a load that I disconnected under power damaged the meter. I was able to troubleshoot and repair it, but had I used your technique, it would have been isolated from the load. In my case, I used a small “wall wart” to supply the meter.

@MikesAllotment 5 років тому

Great video, well explained and very useful. Quick question - what rating fuses did you use for each of the 3.3v, 5v and 12v lines?

@codyn3231ify 2 роки тому

And what resistance resistors

@igrewold 5 років тому

cool :) thanks. maybe you can combine voltages to come up with new values. (-)12v(+)connected(-)12v(+) = 24v (-)5v(+)connected(-)12v(+) = 17v (-)3v(+)connected(-)12v(+) = 15v (-)5v(+)connected(-)5v(+) = 10v (-)3v(+)connected(-)5v(+) = 8v

@escaleferme3982 3 роки тому

i did it -12v with +12v making 24v for sensor and automation and it work fine

@robertneill3057 Рік тому

Okay, but note the current output is limited on the negative connections.

@muxallopeniot9194 3 роки тому

Great video Bill! I like the number of solutions you give at the end of the video. Also you made this power supply video so easy to follow with.

@shewangizawglemessa7785 4 роки тому

Well done with the thoughtful intro and all the information throughout the video. Just a bit of advice for those who want to make this useful gadget, Safety first! These huge capacitors could still be holding a lot of charges, potentially very dangerous! You can easily drain/discharge the capacitors quick with the load resistor mentioned in this video or bigger power resistor if you have one at hand! Have fun!