Are you a teacher or a professor? I don't know but your way of teaching is very clearly and because of that, it make things understandable in every tutorial. You must have some kind of teaching degree.
As the use of extra buck converters for more fixed voltages affects the current draw on the laptop power brick, it is recommended in the video to use them sparingly. It occurs to me that one way to add as many fixed voltages as needed would be to have each of them on a separate switch, so that you can put them in-circuit as required without necessarily overtaxing the overall draw on your power source with modules that are not being used. ...don't mind me, just thinking out loud. ;-]
This is my first electronics project. I re-purposed my Dell XPS charger (who had a silly-mounting DC jack socket, and making a mounting bracket so I could mount it on the case took more time than the actual soldering/putting together the parts.....), learned a bunch about drilling into plastic, mounting stuff onto the box, testing it with my multimeter etc! thanks very much for the idea and the tutorial, can't wait to use it now!
I built the old atx power supply with you.. But I seem to be running out of space so I am going to move the old power supply to my other bench and build this little one for my main project bench.. Thanks Bill. you don't realize how much you have helped this old man learn new tricks.. Carry on, take care of yourself and enjoy the heck outta life!
tinkmarshino / I’m also short on bench space so I’m taking out a parts tray that’s about the right size and installing it there. Not a perfect spot but it will work until I upgrade my shop.
@@NewAgeDIY Dale, my problem is that at 67 I am just starting and didn't know what I would need and what I would not.. It turns out What I do need is more area so I built a bench area for experimenting on and then needed one for building on.. ( I am lucky and was able to build a room onto my house for my computer and electronics stuff..)I am getting my room done slow and sure.. Good luck on your shop upgrade Dale.. That is always a fun project..
tinkmarshino / thanks for the positive feedback. I have worked with computer and electronices for years. Spent some of my time working as a Apple certified bench tech and picked up some Microsoft wallpaper along the way. Retired a few years ago at 60, now pushing 71 this year. DIY / Making community has helped me out in keeping up with the latest technology. Only lately ( about 2 years) RUclips channels have helped me out in understanding the newest low cost maker technology like SBC. They have provided hours of enjoyment building new systems or Maker projects. I'm glad your getting into it now, I'm sure you won't be disappointed.
@@NewAgeDIY heck Dale.. I just bought a power supply off of amazon.. It was only 50 bucks on sale and it would have cost me around that to build the other one.. yeah I know.. "buyer beware!" and homemade is better..
tinkmarshino / yes, it can be frustrating sometimes building something only to find something better for less. Normally I try to modify the build by add more features. I sometimes end up overdoing it and spending more money on the whole project trying to make it better. It’s challenging but rewarding at the same time.
Fantastic little project to make use of one of the old lap tops chargers I have hanging around that I refuse to chuck away. Thanks for the content. Brilliant as ever.
Thanks for the video! I built one just like this about 6 months ago. I used an old 32V printer supply. It works very well and was very cheap. The hardest thing was cutting neat rectangles in the plastic project box. Drills and files are good, but a sharp chisel works well on ABS too. The only other thing I'd recommend is placing your terminals 19mm apart. That way twin banana plug adapters fit. Cheers...
@@RobMods I guess the current rating won't be enough. Use a Laptop power supply or Mod a hacked UPS transformer. If it is from a lazer jet printer, the current rating would be high....but most lazer jet printers have inbuilt power supply which also powers the heater . i suggest you use a laptop power supply !
You might want to add a note to warn people there are a large number of very similar variable power supply modules from China that look exactly the same but use either AC or DC as input. Your solution assumes the module uses DC input. Great video ! Keep them coming.
This is such an elegant solution! I have like 3 of these laptop power supplies in my e-waste bin! And I still don't have a lab bench powe supply for some reason so this is great! Oh and I can 3D print a case for it too so... This is going to make a great project.
As many tech videos that I watch and I just now found this channel? DroneBot Workshop is AWESOME! Great project! But I'd love to have one more output for 12v automotive power also. ?? Like enough amps to run a CB or car stereo.
Hi my friend, I am from Austria and have followed a lot of videos from you. The way how you explain and show the things are perfect. Also it is very easy to follow your speech for an foreigner. Good work. br henry
thanks, you mr for the knowledge and clean excellent videos as I am an electronics technician especially home appliances but still I watched and your workshop
Dear Mr Incredible Dronebot, I had to write to you to personally thank you, but to also congratulate you for the great channel that you have created. You are like a guru for us more humble mortals ! :-) One week ago I didn't know what the hell an Aruino Uno was, it sounds like an Italian car..!! Anyway, I have ran my own business for around 30 years and have entered this incredible digital world. and thanks to you, and your patient and professional style of tutorial, (and hours and hours of trials & errors!) I have managed emulate some highly successful projects with stepper motor control. The more successful my projects go, the more confident and hungry for the next project I become. What you do is more than helpful, its a blessing. Is it possible to get assistance from you with any of my serious professional projects re connecting up and sketch etc? With my thanks & regards, Harry, from London UK
I found some nice project boxes online yesterday that have a flip down leg in the front so you can stand them up at an angle, just like any other device you'd have sitting on the work bench. This project would be perfect for one of those.
@@abhijitborah right, buck converters are efficient, but the one on regulated supply with 5 v type gets heated , it can deliver 5 A max, so application wherever below 3 A is fine above it gets hot, in amazon india it comes with a heatsink supply..
Thanks for another great video. If you use water based acrylic spray paint (from a car parts place or a hobby model shop) it drys quickly . It might need a couple of coats. Then give it a coat of spray varnish.
If I set a fix voltage on an adjustable buck adapter, I like to drop a bit of hot glue on the trimmer to indicate that it's set to a specific output and prevent "accidents".
I built something like this in the past. I used a beefer Buck Converter that can handle five Amps and added a USB-A socket for my Regulated 5+ Rail. I replaced the Multi Turn Pot to control the Current so the Current can be limited. I also have a Fuse inline with it and a Output Switch to control the ON/OFF state of the Output. The Variable Module doesn't have a Fuse since it has built in protection. I'm currently building a new Power Supply that will be a Linear Supply and will have six Variable Outputs from 0V - 24V. I won't use the Buck Converter Modules but some cheap Power Supply boards I found on Amazon and after buying one and tested the heck out of it I will probably use those. Still debating on the Meter, dunno if I should go the Arduino route or have six Panel Meters.
I guess that 5.0 V and 3.3 V would be the two fixed voltages one might want to get from this power supply. One maybe also want to have a small fan to vent the case. But as usually, a great video.
Fantastic collection of Tutorials. Thank you. I request you to cover topics associated with the Teensy 4.1 controller along with possible applications using it.
Reminds me of when I built several fixed 5V power supplies, with most parts coming from Radio Shack (R.I.P.). There we no off-the-shelf modules at that time, and we built everything from the mains on: transformer, bride rectifier, 7805, etc. And I've always used stranded hookup wire for electronics, never solid.
Copy of contents, here you can click to get podituoned in video: Power Supply Design & Components - 5:56 Wiring Diagram - 6:42 Getting all the parts together - 7:54 Testing the Modules - 11:44 Building the Power Supply - 16:15 Testing the Power Supply - 21:16
I have just been looking at these variable power supplies on e-bay. I am not sure yours is of the same type but it states on the instructions not to use it to charge batteries or power capacitive loads. This would lead to the battery or capacitor feeding current back into the unit and probably causing damage to it. They advise using a diode so that no reverse current can flow.
Thanks for the video. I would appreciate your thoughts on using two of these DPS units on the same power supply. AFAIK they monitor current using a shunt in the 0V rail. This means if two DPS units are used and connected to the same load (say 5V and 30V to an amplifier circuit) then the 0V low-resistance shunts will be in parallel so the current readings will not be correct. Also, in your box, if you used both outputs to power the same load circuit and connect both 0V to the load circuit, there would be 0A current reading on the DPS meter. If you do not connect the 0V from the small 5V buck board, then the DPS Ammeter will show the combined current used by the load circuit.
This build is expensive pocket moneywise, you can build much cheaper setup if you use a simple step-down converter with CC and CV and just buy V and A meter separately . Bring the 2 potmeter out to the front panel and you have a real human interface insted of a single rotary stuff. Finally these little modules getting more and more available world wide, couple years ago when I needed an adjustable power supply I searched what ICs have laying around, designed the schematic, made the PCB, test it adjust the resistors for the correct voltage range. Now I just order a little module and the next day I just modify it for my needs and project is done.
I really thank you very much for this project! Everything is explained in detail and very easy to understand. Where did you geht this wonderful looking plastic case? I hope you go on... Boris🇨🇭
Transparency for lettering. I've printed on a transparency for labels in the past. Mirror print so that the labels are under the transparency. Cut to the same size as the front panel with holes for the components.
Dear sir.thankyou so so much indeed.for sharing your knowledge with us. This is an absolutely superb design. Its exactly what i needed. Easy to build.not having to design boards. Its all done for you. I will most definetly be building this set up. And thankyou most kindly For your most exellent Indtructions. Clear concise.and above all easy to understand. Keep up the exellent work sir.well done.im a new subee. Thankyou most kindly sir.steve from the united kingdom.
really nice build and just what the doctor ordered - thanks. Will use similar for electrolysis work. Hmm, thinking the ATX power supply conversion coupled with the variable output from a 19v lap-top charging brick all in the one enclosure would be hyper cool. So thats what I'm workin' on - probably take me months - double hmm, maybe the Gelman Sciences Inc. Deluxe Regulated Power Supply will save me the trouble.
My only question is you didn't show plugging in the power supply cord. I also only saw the input cord for the computer cord and didn't see the output cord when the parts were on the table. I am assuming you need the entire power cord. You are right I have a couple old ones. I have one that has the barrel plug broken off exposing what looks like a fork with 2 prongs but it also looks like it is one piece (I don't see any insulation) and if I plug it in I don't want to trip a breaker. This is much easier than many of the other builds from computer power supplies. Thank you great video
The main thing that this video lacks is links to all the parts you use. As an affiliate you can make a little money and anyone who wants to do exactly what you did can easily find the parts that they need. As a complete beginner that would be extremely helpful.
Most 19v laptop power supplies have a 7.5x5.0 connector. Is there a source to buy the female connector to be used with this project? I have several 19v supplies, but no way to connect them to a project like this. Thanks.
Very informative video. Well done, and I look forward to viewing others. One question -- can you provide some detail on where you purchased your enclosure? A link would be great if you have one.
Another great project in the Workshop! Can I ask where you purchase your cases/chassis from like you used in this project? Even more specifically what terms should I be searching for on Google/Amazon. THANKS and keep up the great work with your channel. I've learned so much from you :)
Hello, we have an agricultural land that has no electricity. Now, if we want to use a motorcycle battery, which is 12 volts, to get different currents, such as 10 or 12 amps, what transistor should we use?
Two questions... 1) if you only want the variable, do you need the buck module at all, or can that be removed from the diagram?, and 2) using your previously built cpu power supply, could you use one +12v and one -12v line combined to feed the var in on the regulator?
Grat combination. I like it. I.m going to build one since I've got a spare DELL laptop power adaptor that outputs 20V @ 130W . Really powerful and a really small form factor. And I've already got the digital power supply module and the box. So, it wouldn't take long to put the lot together. Tnx. Great video
I wouldn't recommend that little buck converter as they are not stable enough. Under 1amp they should be okay, but the IC is either 2 amp or 3 amp but they do overheat. That CNC adjustable is also the same.with the over heating issue. I would build a adjustable PSU as it's not difficult. (Using a external PSU) And there are ways to make a tiny power devices as well as a fan for the enclosure... Rear vents should be at the top.
I have a 12v 7.5Ah battery I would like to charge off a bigger 12v battery. I’m looking for a circuit to make a 12v to 12v charger, have you ever don’t a video on that?
Sweet. I was wanting to make something like this as a frontend to an ATX power supply for supplying quite a bit of power. I didn't know that variable converters with displays existed. I will have to check those out. Hopefully some are available that could do current output in addition to the voltage output.
Benjamin Ramsey I am talking about a current source, like to easily drive LEDs. It would change the voltage so that the specified amount of current is provided. It would be like using current limiting resistors, but it would be dynamic. And, current limiting would be an amazing feature on the voltage source.
excellent video - the ATX power supply needs a bit more features like a combing the variable part with the ATX power supply? thanks your videos are very professional.
That adapter leaks AC current in DC output due to the use of Y capacitor. Could you find any solution for this ? It's widely known fact but no solution out there.
Thank you for sharing this project along with details. As a begginer this is what I have been searching for. Simply superb and very well explained. I tried to look for some sites for cases but would u suggest how I can get the cases with different sizes. I have this buck converter but it produces lot heat does it require heat sink and how do I add heat sink. Thanks
Wonderful project... I am interesting to download the PDF but it doesn't exist anymore. Could you upload it again please? I like to make my own power supply, thank you...
have you observed output voltage under load and no load conditions by oscillicope if you have done it please tell us how it is going as I have been curious about it and have no way to check converters does make a lot of ripples espicialy if there is no filter and it could be harmfull to devices?.
three Tenma 72-6628 0-30V, 3A DC Regulated power supplies have failed...😭 this could be an upgrade project, unless there is a suggestion on fixing them? 😎 thanks...👍👍
Are you a teacher or a professor? I don't know but your way of teaching is very clearly and because of that, it make things understandable in every tutorial. You must have some kind of teaching degree.
Seriously this is one of the best ever presentations available anywhere on the web
As the use of extra buck converters for more fixed voltages affects the current draw on the laptop power brick, it is recommended in the video to use them sparingly. It occurs to me that one way to add as many fixed voltages as needed would be to have each of them on a separate switch, so that you can put them in-circuit as required without necessarily overtaxing the overall draw on your power source with modules that are not being used. ...don't mind me, just thinking out loud. ;-]
I could watch these all day, absolutely brilliant.
This man lays it right down on the mat.
I AM watching these all day ;)
ruclips.net/video/kQ2GMITYfCA/видео.html heres the one you want
I love this guy. I keep saying it but he's just the greatest!
Put the playback speed x 1.75 ... thank me later.
Thanks for all your videos, a gold mine of knowledge..
Never "button" it up, until you thoroughly test it. That looks awesome!
You're the teacher we needed at school.
I love your graphics. It shows point to point. No confusion. You are so good. Thank You.
This is my first electronics project. I re-purposed my Dell XPS charger (who had a silly-mounting DC jack socket, and making a mounting bracket so I could mount it on the case took more time than the actual soldering/putting together the parts.....), learned a bunch about drilling into plastic, mounting stuff onto the box, testing it with my multimeter etc! thanks very much for the idea and the tutorial, can't wait to use it now!
I built the old atx power supply with you.. But I seem to be running out of space so I am going to move the old power supply to my other bench and build this little one for my main project bench.. Thanks Bill. you don't realize how much you have helped this old man learn new tricks.. Carry on, take care of yourself and enjoy the heck outta life!
tinkmarshino / I’m also short on bench space so I’m taking out a parts tray that’s about the right size and installing it there. Not a perfect spot but it will work until I upgrade my shop.
@@NewAgeDIY Dale, my problem is that at 67 I am just starting and didn't know what I would need and what I would not.. It turns out What I do need is more area so I built a bench area for experimenting on and then needed one for building on.. ( I am lucky and was able to build a room onto my house for my computer and electronics stuff..)I am getting my room done slow and sure.. Good luck on your shop upgrade Dale.. That is always a fun project..
tinkmarshino / thanks for the positive feedback. I have worked with computer and electronices for years. Spent some of my time working as a Apple certified bench tech and picked up some Microsoft wallpaper along the way. Retired a few years ago at 60, now pushing 71 this year. DIY / Making community has helped me out in keeping up with the latest technology.
Only lately ( about 2 years) RUclips channels have helped me out in understanding the newest low cost maker technology like SBC. They have provided hours of enjoyment building new systems or Maker projects.
I'm glad your getting into it now, I'm sure you won't be disappointed.
@@NewAgeDIY heck Dale.. I just bought a power supply off of amazon.. It was only 50 bucks on sale and it would have cost me around that to build the other one.. yeah I know.. "buyer beware!" and homemade is better..
tinkmarshino / yes, it can be frustrating sometimes building something only to find something better for less. Normally I try to modify the build by add more features. I sometimes end up overdoing it and spending more money on the whole project trying to make it better. It’s challenging but rewarding at the same time.
Fantastic little project to make use of one of the old lap tops chargers I have hanging around that I refuse to chuck away. Thanks for the content. Brilliant as ever.
I swear I looked to see if you had any link to a component list. NOW I see it. Geesh. The golden years I guess.
Thanks for the video! I built one just like this about 6 months ago. I used an old 32V printer supply. It works very well and was very cheap. The hardest thing was cutting neat rectangles in the plastic project box. Drills and files are good, but a sharp chisel works well on ABS too. The only other thing I'd recommend is placing your terminals 19mm apart. That way twin banana plug adapters fit. Cheers...
@Rob Mods..... What is the output current capacity of the old 32Volt printer supply...?
@@NavinBetamax It's from a old (15+ years) HP printer I threw out a while back. 1Amp, if memory serves...
@@RobMods I guess the current rating won't be enough. Use a Laptop power supply or Mod a hacked UPS transformer. If it is from a lazer jet printer, the current rating would be high....but most lazer jet printers have inbuilt power supply which also powers the heater . i suggest you use a laptop power supply !
That P.S. is really "clean." I prefer things like this to store bought any day. Nice Job. I will enjoy making one just as much as you did.
The variable supply has a current limit feature as well. Very useful. Excellent, as usual
Very conservation minded and functional.
I am all about re-purposing / reusing any thing I can in my projects. Thank you for sharing your knowledge. Ubuntu my friend
Great idea. I've even got an old laptop power adapter on hand. Thanks.
You might want to add a note to warn people there are a large number of very similar variable power supply modules from China that look exactly the same but use either AC or DC as input. Your solution assumes the module uses DC input. Great video ! Keep them coming.
FANTASTIC VIDEO! HIT THE NAIL ON THE HEAD! YOU'RE THE MAN! KEEP IT UP!
This is such an elegant solution! I have like 3 of these laptop power supplies in my e-waste bin! And I still don't have a lab bench powe supply for some reason so this is great!
Oh and I can 3D print a case for it too so... This is going to make a great project.
First time seeing a Mastercraft multi-meter similar to mine in a YT video... warms my Canadian heart! ;-]
Just for you......enjoy! here: ruclips.net/video/dsRTZc_4sXE/видео.html
@@englishrupe01 Haha! Thanks!
As many tech videos that I watch and I just now found this channel? DroneBot Workshop is AWESOME! Great project! But I'd love to have one more output for 12v automotive power also. ?? Like enough amps to run a CB or car stereo.
Hi my friend, I am from Austria and have followed a lot of videos from you. The way how you explain and show the things are perfect. Also it is very easy to follow your speech for an foreigner. Good work. br henry
thanks, you mr for the knowledge and clean excellent videos as I am an electronics technician especially home appliances but still I watched and your workshop
Dear Mr Incredible Dronebot, I had to write to you to personally thank you, but to also congratulate you for the great channel that you have created. You are like a guru for us more humble mortals ! :-)
One week ago I didn't know what the hell an Aruino Uno was, it sounds like an Italian car..!!
Anyway, I have ran my own business for around 30 years and have entered this incredible digital world. and thanks to you, and your patient and professional style of tutorial, (and hours and hours of trials & errors!) I have managed emulate some highly successful projects with stepper motor control. The more successful my projects go, the more confident and hungry for the next project I become.
What you do is more than helpful, its a blessing.
Is it possible to get assistance from you with any of my serious professional projects re connecting up and sketch etc?
With my thanks & regards,
Harry, from London UK
Isn't he so good? We should call him "Professor DroneBot".
I LOVE this idea, now to make my own with three outputs ;)
I found some nice project boxes online yesterday that have a flip down leg in the front so you can stand them up at an angle, just like any other device you'd have sitting on the work bench. This project would be perfect for one of those.
With your permission I would like to link the enclosures I've found in case anybody considering this build wants to see them.
Wow! So cleanly done! Just one suggestion, heat sink required over the 5 v variable supply, the IC heats up..regards
Thanks a good idea. I didn't really observe any heating, but again I didn't run it for a really long time.
@@Dronebotworkshop Buck converters are quite efficient, very little energy wasted as heat (energy).
@@abhijitborah right, buck converters are efficient, but the one on regulated supply with 5 v type gets heated , it can deliver 5 A max, so application wherever below 3 A is fine above it gets hot, in amazon india it comes with a heatsink supply..
One screwdriver on the wall is slightly sideways!
More than one, damn that's unsettling.
I saw that too!! Totally messed me up! What did he build again?
Love the project. I'm sourcing out the parts tonight. Thank you.
Great vídeo, I´m from Brazil.
Thanks for another great video. If you use water based acrylic spray paint (from a car parts place or a hobby model shop) it drys quickly . It might need a couple of coats. Then give it a coat of spray varnish.
If I set a fix voltage on an adjustable buck adapter, I like to drop a bit of hot glue on the trimmer to indicate that it's set to a specific output and prevent "accidents".
It's within a case, how will an accident occur?
I built something like this in the past. I used a beefer Buck Converter that can handle five Amps and added a USB-A socket for my Regulated 5+ Rail. I replaced the Multi Turn Pot to control the Current so the Current can be limited. I also have a Fuse inline with it and a Output Switch to control the ON/OFF state of the Output. The Variable Module doesn't have a Fuse since it has built in protection. I'm currently building a new Power Supply that will be a Linear Supply and will have six Variable Outputs from 0V - 24V. I won't use the Buck Converter Modules but some cheap Power Supply boards I found on Amazon and after buying one and tested the heck out of it I will probably use those. Still debating on the Meter, dunno if I should go the Arduino route or have six Panel Meters.
An ON/OFF switch is always nice to have
The workshlop is awesome. I'm sorting out my workbenshlch
Nice one.....even I could build this
Until u shock u self XD
I guess that 5.0 V and 3.3 V would be the two fixed voltages one might want to get from this power supply. One maybe also want to have a small fan to vent the case.
But as usually, a great video.
Your videos are detailed and to the point. Hats off!
Subscribed!
Fantastic collection of Tutorials. Thank you. I request you to cover topics associated with the Teensy 4.1 controller along with possible applications using it.
Reminds me of when I built several fixed 5V power supplies, with most parts coming from Radio Shack (R.I.P.). There we no off-the-shelf modules at that time, and we built everything from the mains on: transformer, bride rectifier, 7805, etc. And I've always used stranded hookup wire for electronics, never solid.
I miss Radio Shack! I built a lot of linear supplies in the 70s and 80s with big bridge rectifiers and 3-pin voltage regulators.
Copy of contents, here you can click to get podituoned in video:
Power Supply Design & Components - 5:56
Wiring Diagram - 6:42
Getting all the parts together - 7:54
Testing the Modules - 11:44
Building the Power Supply - 16:15
Testing the Power Supply - 21:16
Liked every small detail 😊
I have just been looking at these variable power supplies on e-bay. I am not sure yours is of the same type but it states on the instructions not to use it to charge batteries or power capacitive loads. This would lead to the battery or capacitor feeding current back into the unit and probably causing damage to it. They advise using a diode so that no reverse current can flow.
Love your videos. clear and concise. 👍
Thanks for the video. I would appreciate your thoughts on using two of these DPS units on the same power supply. AFAIK they monitor current using a shunt in the 0V rail. This means if two DPS units are used and connected to the same load (say 5V and 30V to an amplifier circuit) then the 0V low-resistance shunts will be in parallel so the current readings will not be correct. Also, in your box, if you used both outputs to power the same load circuit and connect both 0V to the load circuit, there would be 0A current reading on the DPS meter. If you do not connect the 0V from the small 5V buck board, then the DPS Ammeter will show the combined current used by the load circuit.
Very nice project! I think I'm gonna build one my self. Thanks.
This build is expensive pocket moneywise, you can build much cheaper setup if you use a simple step-down converter with CC and CV and just buy V and A meter separately . Bring the 2 potmeter out to the front panel and you have a real human interface insted of a single rotary stuff.
Finally these little modules getting more and more available world wide, couple years ago when I needed an adjustable power supply I searched what ICs have laying around, designed the schematic, made the PCB, test it adjust the resistors for the correct voltage range. Now I just order a little module and the next day I just modify it for my needs and project is done.
I really thank you very much for this project! Everything is explained in detail and very easy to understand. Where did you geht this wonderful looking plastic case? I hope you go on... Boris🇨🇭
S
I think it's called the project box and can be purchased in most electronic parts supply store
As usual , excellents ideas and explanations to carry out a project to the end. Thanks a lot .
Transparency for lettering.
I've printed on a transparency for labels in the past. Mirror print so that the labels are under the transparency. Cut to the same size as the front panel with holes for the components.
Dear sir.thankyou so so much indeed.for sharing your knowledge with us.
This is an absolutely superb design.
Its exactly what i needed.
Easy to build.not having to design boards.
Its all done for you.
I will most definetly be building this set up.
And thankyou most kindly
For your most exellent
Indtructions.
Clear concise.and above all easy to understand.
Keep up the exellent work sir.well done.im a new subee.
Thankyou most kindly sir.steve from the united kingdom.
Very well explained , thank you for your tutorial.
Very good and very helpful project 👍
thank you very much
thank you for one more fantastic video tutorial!
I will make one , thanks for the tutorial.
Great Job
really nice build and just what the doctor ordered - thanks. Will use similar for electrolysis work. Hmm, thinking the ATX power supply conversion coupled with the variable output from a 19v lap-top charging brick all in the one enclosure would be hyper cool. So thats what I'm workin' on - probably take me months - double hmm, maybe the Gelman Sciences Inc. Deluxe Regulated Power Supply will save me the trouble.
Nice video, thank you. Handy little variable power supply.
Thanks for the great video, I'm looking forward to your arduino vids.
My only question is you didn't show plugging in the power supply cord. I also only saw the input cord for the computer cord and didn't see the output cord when the parts were on the table. I am assuming you need the entire power cord. You are right I have a couple old ones. I have one that has the barrel plug broken off exposing what looks like a fork with 2 prongs but it also looks like it is one piece (I don't see any insulation) and if I plug it in I don't want to trip a breaker. This is much easier than many of the other builds from computer power supplies. Thank you great video
Excellent job
Excellent, thanks.
Great video as always!
Another great project! 👍
nice & clear , well done
The main thing that this video lacks is links to all the parts you use. As an affiliate you can make a little money and anyone who wants to do exactly what you did can easily find the parts that they need. As a complete beginner that would be extremely helpful.
Nice idea! I think there was space for the laptop power supply.
Most 19v laptop power supplies have a 7.5x5.0 connector. Is there a source to buy the female connector to be used with this project? I have several 19v supplies, but no way to connect them to a project like this. Thanks.
Very informative video. Well done, and I look forward to viewing others.
One question -- can you provide some detail on where you purchased your enclosure? A link would be great if you have one.
Ótimo tutorial, parabéns!
I don’t know why every time staring and checking your stuff if something going to change 🤔😁
Another great project in the Workshop! Can I ask where you purchase your cases/chassis from like you used in this project? Even more specifically what terms should I be searching for on Google/Amazon. THANKS and keep up the great work with your channel. I've learned so much from you :)
Thank you.
Really like your work
Hello, we have an agricultural land that has no electricity. Now, if we want to use a motorcycle battery, which is 12 volts, to get different currents, such as 10 or 12 amps, what transistor should we use?
can i use this dc psu for voltage injection on a pcb for shorts repairs?
Awesome 😎
I find my local thrift store is a great source for laptop and wall wart type power supplies.
Are the adjustable buck converters found in any house hold items
Two questions... 1) if you only want the variable, do you need the buck module at all, or can that be removed from the diagram?, and 2) using your previously built cpu power supply, could you use one +12v and one -12v line combined to feed the var in on the regulator?
How can get the smoothest current from one of these for lowest cost.
Excellent... I am excited
Great tut! Thanks 😃.
Grat combination. I like it. I.m going to build one since I've got a spare DELL laptop power adaptor that outputs 20V @ 130W . Really powerful and a really small form factor. And I've already got the digital power supply module and the box. So, it wouldn't take long to put the lot together. Tnx. Great video
I wouldn't recommend that little buck converter as they are not stable enough.
Under 1amp they should be okay, but the IC is either 2 amp or 3 amp but they do overheat.
That CNC adjustable is also the same.with the over heating issue.
I would build a adjustable PSU as it's not difficult. (Using a external PSU)
And there are ways to make a tiny power devices as well as a fan for the enclosure...
Rear vents should be at the top.
I have a 12v 7.5Ah battery I would like to charge off a bigger 12v battery. I’m looking for a circuit to make a 12v to 12v charger, have you ever don’t a video on that?
Sweet. I was wanting to make something like this as a frontend to an ATX power supply for supplying quite a bit of power. I didn't know that variable converters with displays existed. I will have to check those out. Hopefully some are available that could do current output in addition to the voltage output.
The current is just what gets drawn, not something you would set. You do need to be aware of the max it can draw though.
Benjamin Ramsey
I am talking about a current source, like to easily drive LEDs. It would change the voltage so that the specified amount of current is provided. It would be like using current limiting resistors, but it would be dynamic. And, current limiting would be an amazing feature on the voltage source.
Okay, yeah that would be a good application, makes sense.
excellent video - the ATX power supply needs a bit more features like a combing the variable part with the ATX power supply? thanks your videos are very professional.
Well Done
That adapter leaks AC current in DC output due to the use of Y capacitor. Could you find any solution for this ? It's widely known fact but no solution out there.
Thank you for sharing this project along with details. As a begginer this is what I have been searching for. Simply superb and very well explained. I tried to look for some sites for cases but would u suggest how I can get the cases with different sizes. I have this buck converter but it produces lot heat does it require heat sink and how do I add heat sink. Thanks
Wonderful project... I am interesting to download the PDF but it doesn't exist anymore. Could you upload it again please? I like to make my own power supply, thank you...
have you observed output voltage under load and no load conditions by oscillicope
if you have done it please tell us how it is going as I have been curious about it and have no way to check
converters does make a lot of ripples espicialy if there is no filter and it could be harmfull to devices?.
three Tenma 72-6628 0-30V, 3A DC Regulated power supplies have failed...😭 this could be an upgrade project, unless there is a suggestion on fixing them? 😎 thanks...👍👍
Is it possible to run a prefab buck converter in "series" with a boost converter (or vice-versa)? Maybe this is a silly idea
You can actually just get a buck boost converter
Great project !!!
You have a great channel and you're are a good teacher, but please, could you leave some links where you buy your stuff.