Salutations. I’ve gone to school for electronic engineering, I’ve been a DIY tech hobbyist for many years, and I study these subjects virtually nonstop . But, somehow, Sorin you make things make better sense to me than any other professors, tutors, or texts can. Even concepts that I thought I understood well, I find myself learning about it something new. I enjoy watching, my friend. Thank you for being a fellow tech nerd with the ambition, time and generosity to share your knowledge with all interested on the Tube.😎👍🏼
Sweet build man, as for the cost argument, getting something custom built to the need can not be purchased, plus the learning experience is awesome. The other advantage to building is you now know how it works, so you can easily repair it.
@@DavisJohnTV so you just drop a link to your channel, no comment, add nothing to the discussion? That is a good way to ensure I never watch your videos.
hello sorin,yah it is easy to make,thats beacause you have a clear information about your project,i really love by making diy project.im just always waiting for your next video...keep up the good work sorin.
Dear Sorin , I hv really become fan of ur perfect design and better looks than factory of ur products.. I an 93 batch electronics engineer from Mumbai India Airport... I like ur accent and clean heart 💓 lovely talks By the way ur country Sir? My country highway are bad too..😭😎🙏👍😀😂 I wd love u to design power saving renewable energy devices which is future..
i have seen alot of these duy bench supplies but your presentation is the best because of the fact that you icluded the wiriing diagram ... just watching them do it without diagram can potentially burn out a component if you dont know whats happening .... thanks..alsoit was nice that you told me about the volt/amp meter destinction that one is good the other not so ...ill take the precaution when buying ty
I made a variable bench psu just yesterday, with the exact same dc-dc converter, however, I used a 90W laptop charger as the mains-to-dc conversion. Still a weird coincidence tho.
It's a nice build, really. For a home enthusiast, this is something nice to build and have. But, I'm wondering why you used the 10A fuse on the primary side (mains side) of the supply? With the power output of this supply, you can put the 1A fuse instead and be much safer. 1A fuse will blow when you've reached the 220-230W (mains voltage x the current). Also, use a slow-blow fuse because when you power on the supply, the transformer will draw a much larger current for a very short time. The 6A fuse on the secondary side is perfect.
@@Sorin_DIY OK then, but please, correct it and put a slow blow fuse of 1 to 1,5A for safety reasons. Otherwise, a very good job and choice of components.
You should add smaller value potentiometer in series for better,more precise voltage set.Also adding 100nF paraller to big cap provide less hum in the output.
good choice choosing that iron transformer, it can handle lot of amp not like those crappy switching power supply, can't handle over current it triggered protection circuitry and shutoff and cost a lot too, nice work thumps up sorin
@@bashaaksema94 yes i agree with you smps are super efficient it is very useful for some appliances but in this topic the main subject is high power project and iron transformer is suitable for that iron transformer have some watt tolerance like my 24v 5a=120w transformer, i can push it about 130 to 150w nothing is problem but yes just a little bit warm but my 12v 20a smps power supply, if i put a little bit amp like 21 or 20.5a boom!!!!! it triggered and it also cost me a lot too not suitable for my high power project
replace with multi turn potential meter... it give more voltage resolutions ... it also help like if any one touch rotartry party slightly it mess voltage . if more we close to required rang ..example - really slight turn is change 4.2 v to 9v which also kill lipo ...
Thank you for y?our video. This one was much better than your video on building a power supply from a PC power supply. Your English pronounciation has improved considerably. So I have subscribed now that I can understand you much better! Btw- The heat shrinking tubing is called eat Shrinkable TUBING. I am not certain what you are calling it but it doesn't appear to be right.
great video,you do nice neat work,and you gave good advice regarding the V/A meter unfortunately I bought the two wire one not the good three wire one,but I learned something anyway.
Don't you think the Buck Boost converter will be more appropriate for this application and when transformer experiences a voltage drop, the back boost convert will adjust the voltage accordingly.
hi. the voltage drop appears at high voltage values and big loads. at medium and small voltages it has enough current, more than other power supplies and buck/boost converters. it's not a problem for me. buck/boost converters have their own disadvantages, most of them have a very low efficiency, 80% - 90%, and work with a lower current. you can find good buck/boost converters, with better efficiency and high current, but they are expensive. as for my power supply, I have some ideas to make it even more powerful. I will modify it in a future video.
Nice Work Sorin ! I made a couple of them ! Switching power supply it's used in most electronics . Just if your working on microcontrollers based electronics a switching supply might give the designer a lot of headaches . Linear is the way to go ( if you can spear to dissipate some heat LMAo ! ) just modified one those 0 to 30 volt 0 to 3 amp DIY kit up to 0 to 25 amp . it was kinda fun . In the near future i'll post some of my own projects . Unfortunately they are not that entry level electronics . Anyway great to see peple from my own country doing this kinds of tutorials . Stay crative ! ;)
I wonder how you did this, and you got 750W from a 0-30V 0-3A (90W max) power regulator board! The supply must work like a space heater at low voltage high loads ;)
@@imnotbeluga007 those Lab bench power supplies have coil switching . its the only way not to waste all the power in heat . they swap when a higher or lower power is needed . that's why they dont have a gigantic heat sink . I made myself a 0 t0 25 amp linear power supply with the same principle . actually it's a schematic i found . It's the Mastech HY3020 . i made it to push out 25 amps in stead of 20 like the orginal version . Just cause my transformer had more current available
Salut! Super interesante și inspirationale tutorialele tale, însă, cu toate ca înțeleg engleza, cred ca ar fi util sa postezi și varianta în limba romana a aceluiași videoclip. Mai ales pentru cei care vor cu adevărat sa învețe și sa aplice ceea ce vad la tine. Ține-o tot așa. Faci o treabă super!
hi. my ATX power supply works fine, but it has 3 outputs with fixed voltages. this is a variable bench power supply. it's able to modify the voltage between 1 - 31.5V and limit the current.
You forgot to install 12v cpu fan and heatsinc to cool down IR chip circuit if these two not installed the 12v and 5v will overheat. Others are amazing what u did.
Did you account for surge? 200VA transformer needs 1amp to just operate and power surge during startup could be 5A, so you need 7A slow blow fuse or 10A fast blow fuse. It will save you from fire, that's it.
hello, thanks for the tutorial, but I'd like to draw attention to the bugs. There is no description of the rectifier diode for powering the display in the drawing. Furthermore, resistance values (2W, or 5W?) Converter type Transformer values (2x12V, or 2X24V, or 1x24V, 1x 12V?) It would be good to add these data to the schema and description, especially for other handymen who want to build such a resource.
Personally I think this PS is fabulous (just what I want) but.....I think it would have been 'really really nice' to have seen a fan fitted into the enclosure ;-)
@@Sorin_DIY I'd also like to know what those DIY power supply with fixed 3.3, 5 and 12 volts have three ground terminals instead of just one AND why not negative terminals PLUS an actual ground terminal
are you referring to my fixed voltage power supply conversion? I've added 3 negative binding posts, because I can use all outputs in the same time and I think it looks better this way. you can watch the part2 video for more info.
@@Sorin_DIY yes - I was referring to your fixed voltage power supply (another very nice project). It is my intention to combine the fixed power supply (ATX PC PS) with an adjustable / variable power supply (lap-top charger) all within the one enclosure. I agree with you about the black backing. Those two silver knobs and that sleek design looks sensational.
If anyone decides to copy this design I suggest you check that the ripple current rating of the large capacitor is significantly greater than your expected output current at high voltages i.e. the maximum power situation.
The dc suppy from rectifier circuit will charge the capacitor to 50v and the same will go to DC to DC converter module. But specified voltage for the module is up to 32v only so what can be done ? Facing same problem
theres something about THESE kinds of tutorial and build videos that i enjoy. i build a connection with the content creator on a tiny scale. its not like those basic tutorial vids with copyright free music playing the whole time, no voice over, no in-depth explanation, no warnings about current and voltage from a live wire or capacitors, i just can NOT support someone like that.
Can I solder a normal 100 kOhm resistor to a 100 kOhm multiturn potentiometer in order to get to 200 kOhm? Can't find a 200 kOhm multiturn potentiometer! My step up booster uses the 204w trimmpot
thank you bro good job 👍👍 I found it difficult to find the plastic box were can i get the plastic case And the link in the description is not functional
What is the value of two resistors connected in parallel behind the capacitor and what is their use? If the voltage behind the capacitor is about 70V, how much resistor should I use? Please help, thank you.
The resistors are used to discharge the capacitors after the power supply is turned off. there isn't a fixed value, just enough to discharge the capacitors and not get hot in long use. you can use a 6.8Kohm and 2W resistor. If you use the power supply for a long time, you can check if the resistor is heating up, then you can use a more powerful resistor like 5W.
![[Limbus Company - PV] Chapter.7 - Oblivion](http://i.ytimg.com/vi/VUpkXPkvoxU/mqdefault.jpg)
Salutations. I’ve gone to school for electronic engineering, I’ve been a DIY tech hobbyist for many years, and I study these subjects virtually nonstop . But, somehow, Sorin you make things make better sense to me than any other professors, tutors, or texts can. Even concepts that I thought I understood well, I find myself learning about it something new. I enjoy watching, my friend. Thank you for being a fellow tech nerd with the ambition, time and generosity to share your knowledge with all interested on the Tube.😎👍🏼
whats fun in buying everything new when u can make it yourself
keep up the good work love the vids
Sweet build man, as for the cost argument, getting something custom built to the need can not be purchased, plus the learning experience is awesome. The other advantage to building is you now know how it works, so you can easily repair it.
@@DavisJohnTV so you just drop a link to your channel, no comment, add nothing to the discussion? That is a good way to ensure I never watch your videos.
hello sorin,yah it is easy to make,thats beacause you have a clear information about your project,i really love by making diy project.im just always waiting for your next video...keep up the good work sorin.
Great stuff Sorin... brings me back 30 years ago ;-) Respect !!! Greetings to lovely Romania!
Awesome video, Sorin! I seriously love your soldering iron. Much respect.
Dear Sorin , I hv really become fan of ur perfect design and better looks than factory of ur products.. I an 93 batch electronics engineer from Mumbai India Airport... I like ur accent and clean heart 💓 lovely talks
By the way ur country Sir? My country highway are bad too..😭😎🙏👍😀😂 I wd love u to design power saving renewable energy devices which is future..
6:13 to 6:17 the best part to be heard of. lol. Great build bro. Thumbs up!!!
i have seen alot of these duy bench supplies but your presentation is the best because of the fact that you icluded the wiriing diagram ... just watching them do it without diagram can potentially burn out a component if you dont know whats happening .... thanks..alsoit was nice that you told me about the volt/amp meter destinction that one is good the other not so ...ill take the precaution when buying ty
FULL BRIDGE RECTIFIER!!
hahah was waiting for that one :P
ElectroBoom
Not a puny single Diode rectifier
Nope! A FUULLLLLLLLLLLLLLLLLL BRIDDDGE REECTTTTIFAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Super lucrare. Imi place ce faci, explici clar fiecare lucru pe care îl faci. Good job !
I made a variable bench psu just yesterday, with the exact same dc-dc converter, however, I used a 90W laptop charger as the mains-to-dc conversion. Still a weird coincidence tho.
Clean and Mean power supply. Great work. "Let the cat pass" should be a staple in all your videos Sorin.
Earth-cable for power? Where is here "clean"!?
It's a nice build, really. For a home enthusiast, this is something nice to build and have. But, I'm wondering why you used the 10A fuse on the primary side (mains side) of the supply? With the power output of this supply, you can put the 1A fuse instead and be much safer. 1A fuse will blow when you've reached the 220-230W (mains voltage x the current). Also, use a slow-blow fuse because when you power on the supply, the transformer will draw a much larger current for a very short time. The 6A fuse on the secondary side is perfect.
hi. I used the 10A fuse for the inrush current. I had only fast blow fuses when I built it.
@@Sorin_DIY OK then, but please, correct it and put a slow blow fuse of 1 to 1,5A for safety reasons. Otherwise, a very good job and choice of components.
Beautifully and professionally engineered and built!
Sorin, why not have a go at making an arc welder. Just an idea.
You should add smaller value potentiometer in series for better,more precise voltage set.Also adding 100nF paraller to big cap provide less hum in the output.
Keep up the good work Sorin !!!
Very nice
Thank you, Sorin. Nice job on that Power Supply. God[Bible] Bless.
good choice choosing that iron transformer, it can handle lot of amp not like those crappy switching power supply, can't handle over current it triggered protection circuitry and shutoff and cost a lot too, nice work thumps up sorin
I disagree there are a lot that can do 10A 5 or 12 or 24V just fine with a way higher efficientie
@@bashaaksema94 yes i agree with you smps are super efficient it is very useful for some appliances but in this topic the main subject is high power project and iron transformer is suitable for that iron transformer have some watt tolerance like my 24v 5a=120w transformer, i can push it about 130 to 150w nothing is problem but yes just a little bit warm but my 12v 20a smps power supply, if i put a little bit amp like 21 or 20.5a boom!!!!! it triggered and it also cost me a lot too not suitable for my high power project
Looks nice, I'd love to try building one my self
Now this is not a bad power supply. People just "hack" a computer power supply and call it a great power supply.
Nice design and construction, compact, and a reliable useful output, well done.. (Australia).
I'm in for the subscription! Again very informative, clear and funny, thanks again for sharing Sorin, great work 👍 👍
Nice build
Really nice workmanship. Thanks for sharing your skills!
Nice
Very nicely done looks very professional. Thank you for uploading
Outstanding
replace with multi turn potential meter... it give more voltage resolutions ... it also help like if any one touch rotartry party slightly it mess voltage . if more we close to required rang ..example - really slight turn is change 4.2 v to 9v which also kill lipo ...
you are right. I already bought the potentiometers. I will make some other modifications to make it more powerful. I will make a video about it.
lovely build. truely diy. even the damn transformer is custom wound. Love ur channel :D Keep it up!!
Thank you for y?our video. This one was much better than your video on building a power supply from a PC power supply. Your English pronounciation has improved considerably. So I have subscribed now that I can understand you much better! Btw- The heat shrinking tubing is called eat Shrinkable TUBING. I am not certain what you are calling it but it doesn't appear to be right.
Excellent
Great, now Im gonna build myself too.
Nicely done
You should try using a step drill for the holes it would be a lot easier
great video,you do nice neat work,and you gave good advice regarding the V/A meter unfortunately I bought the two wire one not the good three wire one,but I learned something anyway.
Nice equipment Sorin, congratulations !
Hey Sorin!! Long time No Chat!! This has a really good look for a really cheap price. I really like it!!!
Don't you think the Buck Boost converter will be more appropriate for this application and when transformer experiences a voltage drop, the back boost convert will adjust the voltage accordingly.
hi. the voltage drop appears at high voltage values and big loads. at medium and small voltages it has enough current, more than other power supplies and buck/boost converters. it's not a problem for me. buck/boost converters have their own disadvantages, most of them have a very low efficiency, 80% - 90%, and work with a lower current. you can find good buck/boost converters, with better efficiency and high current, but they are expensive. as for my power supply, I have some ideas to make it even more powerful. I will modify it in a future video.
Nice Work Sorin ! I made a couple of them ! Switching power supply it's used in most electronics . Just if your working on microcontrollers based electronics a switching supply might give the designer a lot of headaches . Linear is the way to go ( if you can spear to dissipate some heat LMAo ! ) just modified one those 0 to 30 volt 0 to 3 amp DIY kit up to 0 to 25 amp . it was kinda fun . In the near future i'll post some of my own projects . Unfortunately they are not that entry level electronics . Anyway great to see peple from my own country doing this kinds of tutorials . Stay crative ! ;)
I wonder how you did this, and you got 750W from a 0-30V 0-3A (90W max) power regulator board! The supply must work like a space heater at low voltage high loads ;)
@@imnotbeluga007 have you head of coil switching ? that's used in lab power supplies . look it up ;)
@@lucianungurean None of my PSUs has this, but maybe it's just because my most powerful power supply is only 300W.
@@imnotbeluga007 those Lab bench power supplies have coil switching . its the only way not to waste all the power in heat . they swap when a higher or lower power is needed . that's why they dont have a gigantic heat sink . I made myself a 0 t0 25 amp linear power supply with the same principle . actually it's a schematic i found . It's the Mastech HY3020 . i made it to push out 25 amps in stead of 20 like the orginal version . Just cause my transformer had more current available
@@lucianungurean OK, interesting!
To stop the laminations from humming, dip the whole transformer into a can of varnish. Leave it in overnight, then allow it to dry...
Nice work ♥️
Salut! Super interesante și inspirationale tutorialele tale, însă, cu toate ca înțeleg engleza, cred ca ar fi util sa postezi și varianta în limba romana a aceluiași videoclip. Mai ales pentru cei care vor cu adevărat sa învețe și sa aplice ceea ce vad la tine. Ține-o tot așa. Faci o treabă super!
I'm a little new to all this... Why do you need a transformer?
Felicitarile mele Sorin... de unde esti din tara??
Super făină! Seamănă cu ceea făcută de great scott
Hey Sorin, what happened to your old ATX PSU power supply? Is it dead already? Why are you making a new one here.
hi. my ATX power supply works fine, but it has 3 outputs with fixed voltages. this is a variable bench power supply. it's able to modify the voltage between 1 - 31.5V and limit the current.
Variable .
You forgot to install 12v cpu fan and heatsinc to cool down IR chip circuit if these two not installed the 12v and 5v will overheat. Others are amazing what u did.
Cool video buddy! Nice build 👍
Bro you will grow shortly, l am your biggest fan😇😇😇😇😇😇😇😇
although you saied not to talk about other youtuber，but...
GREATSCOTT!
nice work brother. I'd like to see you make some custom circuits, and do some tutorials for beginners. looking forward to future vids I subbed.
Very Nice I love it
Great video, and a smart looking PSU.
Hi Sir
U did a great job Ur power supply enclosure is attractive look
Thank you 👍👍👍
Hi Sorin wellcome back , i love all your project . Imade one of your 18650 battery charger . it works very well ... tks Sorin
main fuse should be around 1amp not 10amp, thanks for the upload,
Did you account for surge? 200VA transformer needs 1amp to just operate and power surge during startup could be 5A, so you need 7A slow blow fuse or 10A fast blow fuse. It will save you from fire, that's it.
Very nice project!
Cool video, please can you tell, how you connected the potentiometer with the amperage. I have having some problem with that, thanks.
hi. you can follow the schematic from the video description. i.imgur.com/HDkBf7m.jpg
Really nice job
hello, thanks for the tutorial, but I'd like to draw attention to the bugs.
There is no description of the rectifier diode for powering the display in the drawing.
Furthermore, resistance values (2W, or 5W?)
Converter type
Transformer values (2x12V, or 2X24V, or 1x24V, 1x 12V?)
It would be good to add these data to the schema and description,
especially for other handymen who want to build such a resource.
Superb job sir.spot on.
Instead of that big transformer, you could have used a flyback transformer or maybe a 230v-ac to 12v-dc isolator.
That was cool But thinking I would of added a couple more pots for fine voltage and current adjustment. But very nice nonetheless.
Awesome
Pretty awsome
Bro please give me solution that how would I place a power LED in this project and how to fix a cooler fan in this project.
Great video again. I particularly like some of the translations :) I'm not mocking as I cannot speak Romanian.
Can you make another one of this using toroidal transformer?
Personally I think this PS is fabulous (just what I want) but.....I think it would have been 'really really nice' to have seen a fan fitted into the enclosure ;-)
hi. I will soon upgrade it from 90W to 150W or more, I will also add a fan.
@@Sorin_DIY I'd also like to know what those DIY power supply with fixed 3.3, 5 and 12 volts have three ground terminals instead of just one AND why not negative terminals PLUS an actual ground terminal
are you referring to my fixed voltage power supply conversion? I've added 3 negative binding posts, because I can use all outputs in the same time and I think it looks better this way. you can watch the part2 video for more info.
@@Sorin_DIY yes - I was referring to your fixed voltage power supply (another very nice project). It is my intention to combine the fixed power supply (ATX PC PS) with an adjustable / variable power supply (lap-top charger) all within the one enclosure. I agree with you about the black backing. Those two silver knobs and that sleek design looks sensational.
If anyone decides to copy this design I suggest you check that the ripple current rating of the large capacitor is significantly greater than your expected output current at high voltages i.e. the maximum power situation.
Salut, Sorin! Un set de chei nu este scump... salutări din Germania!
6:00 he didn't mention the holes in the road so big you'd think they're meteor sites
Razvii romania?
@@becomematrix yap
@@Razvii I know it's been a while since your comment but I'm much more interested in the beautiful women!
6:14 Sorin you crack me up! haahaha
Hi... where do you bye that enclosure box.. please can you send me a link... ?
The dc suppy from rectifier circuit will charge the capacitor to 50v and the same will go to DC to DC converter module. But specified voltage for the module is up to 32v only so what can be done ? Facing same problem
hi. the capacitor is charged with the peak voltage coming from the bridge rectifier, which is 32V DC.
"IN MY COUNTRY WHICH IS FAMOUS FOR BEAUTIFUL WOMEN AND LACK OF HIGHWAYS". Thanks for the laugh lol.
The quality of your videos are improving, well done.
Great video
very good excellent projects engineer I have a doubt about the values of the transformer you use for this project
SMPS are a BAD way to go for a proper bench power supply for MANY reasons....can you tell us why?
theres something about THESE kinds of tutorial and build videos that i enjoy. i build a connection with the content creator on a tiny scale. its not like those basic tutorial vids with copyright free music playing the whole time, no voice over, no in-depth explanation, no warnings about current and voltage from a live wire or capacitors, i just can NOT support someone like that.
Bine sorine! Misto canalul!
Can I solder a normal 100 kOhm resistor to a 100 kOhm multiturn potentiometer in order to get to 200 kOhm? Can't find a 200 kOhm multiturn potentiometer! My step up booster uses the 204w trimmpot
6:05 You can't say that you are using 1.5 millimeter gauge wires. You need to say, 1.5 square millimeters (mm²)
Salut, @Sorin, imi place foarte mult canalul tau! :)
Top work !!!
What is the device in parallel after the 6800m50v capacitor? j, hey, is that a resistor? How much hug?
it's a resistor, to discharge the capacitor. the value it's 82Kohm
Wow nice project...
where did you buy that case? What is it called?
YOU COPIED OTHER RUclipsRS.
I haven't seen those youtubers, and I really like your videos. Thanks for making them!
thank you bro good job 👍👍
I found it difficult to find the plastic box
were can i get the plastic case
And the link in the
description is not functional
hi. I can't find another useful link. the model is: ABS-85B 180x160X85mm
Nice. Is the transformer 12-0-12 volt , 5 Ampere or 0-24 volts? Will we get noise free output from the buck converter?
The transformer has a 24V output. The converter I used in this video is pretty good, it has very little noise.
Excellent DIY! Thank you Sorin!
What is the value of two resistors connected in parallel behind the capacitor and what is their use? If the voltage behind the capacitor is about 70V, how much resistor should I use? Please help, thank you.
The resistors are used to discharge the capacitors after the power supply is turned off. there isn't a fixed value, just enough to discharge the capacitors and not get hot in long use. you can use a 6.8Kohm and 2W resistor.
If you use the power supply for a long time, you can check if the resistor is heating up, then you can use a more powerful resistor like 5W.
misto clipul ! bravo man!
everything neat n clean .... hard work shouting ..... love from pakistan