Diode Tutorial & How to build an AC to DC power supply
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- Опубликовано: 23 июл 2024
- This video covers the basics of diodes, bridge rectifiers, and how to build simple unregulated AC to DC power supplies than can handle a few mA up to several Amps.
General purpose 1A diodes: www.amazon.com/exec/obidos/ASI...
Check out my webpage for more videos about electronics! www.afrotechmods.com
I recommend watching my transformer tutorial first if you are confused about where I am getting the AC voltages from: • What is a Transformer?...
Here is a followup video on how to make a regulated voltage supply:
• Voltage regulator tuto... 
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Best explanation in history. I keep coming back to this video. Thank you!!
Great refresher! I received my bachelor's in electrical engineering and now I'm finishing up my PhD in Comp Sci. This series is not only helping me recall all those things I used to know, but I'm also learning so many practical lessons that I didn't get from class. It's a great feeling!
No yelling, no screaming (i.e., something something ElectroBOOM), explained in a clam incremental approach, and that's what you call a great video. Thanks, learned a lot.
Awesome tutorial! Keep them coming, I am actually beginning to get some basic understanding of electronics, thank you so much. I am 60 and this has always been facinating to me. My thoughts are, always learn something new every day, and pass it on. This is great grandpa stuff, keep our young children's minds entertained, and they are less likely to get into trouble.
Good tutorial. Moved along fairly fast but illustrations were excellent and professional looking.
Really love your way of explaining. My engineering teacher who thought this concept couldn't get direction of current right for a diode. You are a life saver.
When I got my first HO train set for Christmas back around 1962, when I was 8 years old, it got me interested in electricity. In school I was able to learn math and algebra easily. I started getting books from the library about electricity and started designing circuits. I now have an electronics shop in my basement and an HO train layout that goes around the basement.
Man how i hate this, as Engineering student books were the only source 20 yrs back for us. and using web sites took long time to load on 64kbps on PPP and using search like Alta Vista, AOL etc.. and now,
look at this video and instructors all around the world giving easy to understand, point by point simulation and educating kids all around the world for free via videos...
Great Work; loved your video and work...
Its amazing, unfortunately 99% of kids these days dont bother to use the information at there fingertips and watch cat videos instead
Hayden Barton hehe :)
I agree, except when I was a kid in the 1970s there was nothing but buying books, or the town library (we haven't got that book, we can get it from another library, it will take two weeks...). No online, no modems of any speed.
I found some old astronomy books from my youth (I was born in 1966) recently and was shocked at how little information they actually contained, and most of them had the same information as the others. A child today could learn more in twenty minutes on Wikipedia or watch instructive videos. These are wondrous times.
hahaha..."Alta Vista"
I am in the few % of kids who actually either understand a bit or do electric gadgets/connections, etc.
Not that many of us either have: The Courage, Will, or just plain old know how.
I am the age of 15 years, I've been interested in electrics since I almost got my self killed by touching the mains with a pin as a little child.
I'm happy that all of this information is handed to us like an golden secret.
It is quite sad to see that not that many of us want to spend an (min.) hour of researching.
I am a 71 year old man that cannot hear very well anymore, but you must have taken at least 20 speech class to do this clear and concise presentation.
You are truly a gifted person when it comes to talking and presentation.
I Love the fact that there is no background, so called music, or any other noise to mess up me hearing someone talk.
I truly hope you make more very informative and well planned videos.
I have subscribed.
Thank you for taking the time to teach us!
Thank you! No speech classes, but I do re-read each line 5-6 times until I get something that sounds right.
3 years of studying general electronics and that was the time i FULLY understood bridge rectifiers....... i hope I had a teacher like you back then...
Τάσος Παραστατίδης u
Man have no words to describe your work. Actually you are my electrical tutor!!
got your self another subscriber dude. awesome and clear to understand video. thanks a million.
Gonna just binge watch as many vids of yours as I can one day! Afrotechmods: the Carl Sagan of Electrical Engineering! :3 You explain concepts with such simplicity that it's amazing how complicated texts make these things seem! I salute you! Subscribed :)
+Amir De Freitas Dawww thanks!
+Afrotechmods Why not use a mosfet rather than a diode?
+Amir De Freitas Agree. I'm finding these videos much more helpful than the beginner texts that I've been reading.
("RNA0ROGER") o
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As a newbie hobbyist for electronics this is the excellent tutorial I ve ever seen. As a teacher I can't help stating that Not only you are an expert at converting ac to lower dc and smooting it you also do the same thing on info.As clear as possible Excellent job.
Great video! As a senior in high school back in 1971, each student had to build a 12 volt power supply using the bridge rectifier. At the time I did not fully understand why a changing load would affect the output voltage. As a 1976 graduate of the USAF School of Applied Aerospace Sciences, it all became much more clear. 8-)
I study electronics and information at high school, and this video taught me more about diodes than 30 hours about diodes in electronics class .
Thank you so much for this great video and superb explanations!
Two thumbs up for you Afrotechmods........
Whoa! Tutorial that goes straight to the point, including coherent examples, flows perfectly, and a narration that is crisp clear.
I think that you just wiped the floor with all other instructors and teachers out there. Not that you needed to. All of your videos are pure awesomeness.
Thank you.
This is the best RUclips video on Rectification I have seen so far. Clear, well edited and exactly to the point. Well done and I hope to see more videos in the future. For now I will enjoy going through the series 👍
I miss your videos. Your videos are the best on youtube. You should make more.
Your videos are excellent. Very clear; logical progression of concepts; and very informative. Thanks!
This is so GOOD!!! I have spend lots of time in the lab to try to figure out how it work, and you make understand the concept in just 11 minutes. Thank you so much for upload this video.
Just saw this video after trying to get 9V DC out of my Train Transformer running 5-15 V AC, Wow what a great lesson. I have blown up Diodes and Regulators because i had NO Capacitors in the circuit, great tutorial. THANK YOU, D
Dude, this was awesome. So simple and to the point. Makes me want to take my old arse back to school.
Very good video. It explains all the basics. Thanks.
Awesome tutorial!! Nobody has explained this stuff that clearly so far!!
Great video! Im a novice guitar effect pedal builder and want to build units with power supplies. This really clarified that process for me. Thanks for posting.
Excellent videos! What happens when you run 2 diodes of the same type in line? Im not very good at this and at 55 Im just starting to dabble. Thank you!Also does the bridge rectifier still pulse?
2 diodes in series will only increase your voltage drop. yes the bridge rectifier will output a pulsating DC voltage wave with less voltage ripple.
Amaizing, most vids had me lost, this was so simple and sooooooo easy to understand! U are a true master
These are among the best tutorials I've seen on youtube for any subject!
WOW!! I just stumbled across your video's... This is AWESOME!!
I built an unregulated 12v power supply for an Alpine car head unit I was using in my bedroom for source (CD/Radio) back when I was 16 b/c I had no need of it anymore, and wanted to use it b/c it was small and had a remote. So I strapped it underneath a shelf, bought a transformer and bridge rectifier, cap.. soldered them together and there I had it.
I've forgotten how to do most everything electronic now I'm 34.
TY 4 the video!
Awesome Tutorial i wonder if i was tought like this!!
good presentation
Afrotechmods always rules! Another great vid and tutorial.
Thanks for taking your valuable time to share this with strangers like me. My Pops was an electrician, but he wasn't around much and when he was it wasn't exactly a learning environment, but I always wanted to learn all this stuff. I'm almost 50 now, and my Pops is gone, thank God, but I want to teach my son about this kind of stuff, so it was time for me to start learning. I've been watching your videos for about a month, and everything I've learned so far has not been bullshit, like sooooooooooo many others I've been checking out also, so I subscribed, and I hope that helps ya some. I don't have much else to give other than my sincere appreciation. I truly do, appreciate the fact that you shared this all, in a pretty not horribly boring kinda way, so Thank you Sir!!
52 just starting. Your videos have been an eye opener for me. more,more,more! And thank you for your time
This video was really helpful.
**ElectroBOOM sees **07:58****
I guess it's using my patented *FULL BRIDGE RECTIFIER!!!*
Thought you were talking about a Full Bridge Rectum-fier xD
Every time I hear that just cracks me up... ha-ha
damn .. i did read hearing him voice .;lol
@@BillAnt he has made a full bridge rectum frier
@@BillAnt
FULL BRIDGE RECTIFIER!!! = ElectroBOOM
Rectum Frier = AvM
Electroboom *full bridge rectifier*
Full bridge rectifiers creator: I am a joke to you
Awesome video. Very clear and understandable. I'm currently building a dc power supply and this video helped a lot. I thought I had bridge rectifiers pretty much figured out but I never thought of it doubling the frequency. Thank you.
I have an industrial engineering background and dabbling at 56 yrs old in hobby electronics. Very nicely done video! Subscribed.
Excellent job. I want to ask why does not parallel diode increase the current capacity ?
Due to imperfections in the material, no two diodes are equal, thus their electrical parameters differ slightly. There will always be microscopic differences in the material density.
The issue with putting diodes in parallel is that as they heat up, their resistance decreases. As a result, at one point, one diode ends up taking on a little more current then the other diode, resulting in it heating up even more. As you can probably see, this cycle will cause thermal run away causing that diode to eventually burn if you give it enough current.
@@expertu sensei , gimme ur discord to teach me
Thank you very much.. its a great tutorial... your are serving the world... I am from a small village in Tamil Nadu, India
Glad I could help, Premnath :)
You are a good teacher.. I admire you.. I am playing all your videos.. your teaching is simple and application oriented.. when I took electronics class.. it was all boring with the text ..I even tried to set my own e lab.. but I failed so moved on to Digital Image processing.. your videos pulling me back towards electronics..I wonder how you learn and explain like this.. I want to be like u... if you could, pls refer me with some good books,links etc .. Thank you for responding..
Look for "The Art of Electronics" by Horowitz and Hill
Thank you :)
Afrotechmods Best book ever.But is not in my language:(Very hard reading for me
This is one of the best instructive channels on youtube, seriously ...
Thank you.
THAT was an AWESOME VIDEO! That's the way it should be done! The video has taken up 3 pages in my notebook (I'm in the learning/tinkering phase still) and now I FULLY UNDERSTAND what a bridge rectifier is, how it's made, how to build, all the components functions through the entire wave form and its benefits and limitations when applied to various types of builds/projects and when to and not to use one! 35 minutes ago I didn't have a clue what this "bridge rectification" alien technology was or what it was all about and now I feel way smarter because of an 11:19 video that I kept rewinding parts of and taking notes. Being smarter after a video doesn't happen often while watching RUclips! This is the gold standard of how/when/why/where electronics videos should be done. WELL DONE SIR! THANK SO YOU! YOU HAVE BEEN SUBBED! I hope the rest of your vids are just like this!
Thanks!
Put caps in parallel for more capacitance and it'll work (assuming their voltage rating is ok).
7 years and only 1 like wow
i will like
great, quality video.
Best teacher on youtube, easy to understand lessons. Awesome Channel.
I have been looking all over in UK Lancashire for hobby electron classes so I can learn about this stuff for my projects the on thing I can find is intense full time courses with qualifications and exams... I've been trying to find out how to build a PWM speed controllers for treadmill motors usually 180VDC 5amp because they are so expensive to buy.
I've had to resort to reading info from the net and watching you tube videos, Knowing nothing about electronics I have found most of the information and videos I have watched really confusing... this is actually the first video I have watch that has made sense to me.
Cheers
wow. good stuff
Okay, how do I get 12 vdc at 5amps?
*****
Perhaps You should have mentioned he would need a resistor rated at dissipating at Least 60 Watts. Based on the level of the question, He may not understand the amount of power(Heat) that will need to be dissipated by the
resistor (Load).
However, perhaps he is asking how to build a power supply that is Capable of providing 5 amps to a load that requests/needs 5 amps of current.
In that case Barry would need a larger transformer capable of providing 5 amps AC, and he would need to be sure the diodes are rated at 5 amps or more and sufficiently large capacitors for the desired level of filtering.
Thanks for replying to users who have questions.
Kind Regards,
Bob .
Bob Duvall
Copy Afrotech's circuit using a transformer with at least a 60VA rating (12V x 5A) with a 12V secondary and a bridge rectifier rated at 5A or more.
@trance183 It's often shown as trr (reverse recovery time), from which you can calculate the approximate frequency using f=1/t. There's also the diode turn on time, but this is usually insignificant compared to trr. However, you might also be limited by the diode's junction capacitance which also can allow high frequencies to pass through. In other words, you'll never be sure until you simulate/test the diode and see how it performs in your circuit. Most schottky diodes can handle 1Mhz no prob.
You know how long I've been arounx electronics and still didn't understand what you just explained perfectly in a few minutes! Great video! I subscribed.
That's a Pendulum song!
I so need a scope....
wayy to expensive stuff. i´m looking forward to ask in my university to keep an old one when they replace them with new ones.
The lowest you could get is probably a USB one. You'd probably need to do some tricks to lower the voltages reliably if you deal with high voltage, but usable for low voltage applications and 20MHz bandwidth on the low end.
They are not as good as things like a Rigol DS1000 series, but cheap and probably enough to start with.
Get a used analog scope
m.youtube.com/watch%3Fv%3DXh9FNRpta9s
m.youtube.com/watch%3Fv%3DlZfbo-2sd1A
After watching this tutorial and the way you explain everything is just so understanding.
I ahve never made a rectifier before but with what i have just seen i can.
Fantasic video,
all the best ray
This is by far the best explanation I've found for begginers like me. Thank you! You clarified many of my questions.
Saludos desde argentina.
Fun video. DC to AC?? ;)
Sir , the best thing I did this year is finding ur channel and subscribing to it 👍.. thank u
I'm Not an electrician. My dad was. He tried to teach me some stuff and the first thing he taught me was the bridge rectifier. Your explanation is spot on. I just wish I could wrap my brain around the rest of it. I guess you could call me " electron deficient".
This is by far the best video on how to convert and handle AC to DC .
Recently subbed and I am learning so much. I couldn't grasp some concepts from just reading. Your explanations are really helpful and easy to understand. Thanks!
Typed a big comment and lost it, grrrr
You won me. I'd have chosen electronics for my engineering had such videos been available in my days. You make it look all so easy. Hats off to you. Please keep up the awesome work. You're better than university professors.
Subscribed midway through the video. You've got me hooked.
I am an Electrical engineer. I've read butt load of books,listens to hours of lecture from our instructors; but this 11:20 mins lecture on diode is the best lecture in my life ever. Thanks and keep up.
excellent video. An engineering student myself and I have to build one of these next week. You've got yourself a new subscriber
excellent presentation; perfect combination of text, diagrams, voice over narration, and videos.
Your Video has explained this to me well. You are better than all my electronics teachers put together. Your teaching was of such a high standard, you actually made me interested in doing something as a result. Thankyou.
Omg, I don't know how to thank you
This is the best video I've ever seen. I was looking for something like this for a while ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍
That was EXCELLENT, I have never understood it to this level of completeness. Keep up the good work!
Fantastic, and I think this is just what people want to see.
Real-life electronics, and explained in a very informative way and
indeed 'bridging' the gap in knowlege in regards especially to 'wall-warts'.
You should be a teacher indeed Afro!
I haven't been to electronic classes in almost 20 years and forgot everything above just the very basics. After watching many videos and looking at different sites. This has been the easiest video to understand.
Man you're a life saver even in 2019!
Thank you! That was awesome in every way. Seriously. Perfectly targeted; clear and direct; well produced vid.; etc etc. Much love.
Another excellent video, thanks for taking the time do this. I ran out of money to finish my electronic engineering degree and I'm trying to learn on my own and it really helps!
I love your videos! Thank you so much for making these videos and helping me develop my interest in electronics!
Very nice tutorial, that is one of the best explainations ive seen yet, especially with the various examples with the scope. Thanks!
This videos are so addictive. :D
Thank you Afrotechmods!
That was awesome. This was a great brush up on my knowledge from school years ago.
great great tutorial.
Thanks a million
Beautifully produced and narrated. Subscribed!
Very clear and concise. I watched probably 3 different videos with a mild level of frustration because the explanation wasn't very clear.
Thanks!!
Thank you so much. This really helped a lot.
Really appreciate the clear and concise explanation with background info. perfect.
Please don't ever take these videos down. You never know who they will help down the road
Learned more here (about electric components and how to use them) from him than while earning my BSME. Excellent Teacher. I just subscribed !!
I love these tutorials of yours, Afrotechmods, many thanks!
I really have to say that most of my electronic engineering professors did not explain as clearly and concisely as you have here ... this is extremely well done.
Glad to see you back Afro. Excellent work as always. :)
You are an excellent teacher Sir. I knew some of this years ago, but this is excellent for a refresher course. Looking forward to trying out what I've learned here. Thank you
I need to watch more of your video's, this stuff is fascinating and confusing all at the same time.
Good to see you back. We're doing diodes in electronics classes at the moment.
I think this was incredibly well done ....I almost know nothing about this stuff really But this video helped me understand A lot of things ...Very good job explaining as well .I wish all tutorial videos were this good
Hey- That was excellent. Very well put together, and very easy to understand.
It took us 2 or 3 classes, and 1 lab section to cover that same material.
Thanks for the upload, and looking forward to future vids.
Your tutorials are absolutely excellent. You are a great teacher. I only wish you did more videos more often.
Very nice video! Most plug-in power supplies are now switching type, rather than linear. Also, with phase shifting of thee phase transformers, you can have up to 48 pulses, rather than one, simplify the (ac ripple) filtering.
Unbelievable! You have a great way of making this understandable. Love it!!!
this is really awesome! thanks for making this video😊 now I'm able to understand the concept rather than cramming it
7:55 This circuit on older cars for converting the AC from the alternator/generator, is in a module along with the voltage regulator. for older GMs it was bolted to the firewall.
Most modern cars and trucks have all these circuits packaged with the alternator.
Every automotive tech should know exactly what this is, and how it works.
This is amazing, I've had to work everything here out myself, and it was all accessible here!
All your tutorials are fantastic. You manage to really dumb down the tech talk. Nice work
Thank you very much for this video! I've just learned more from your video than I had all year round! Honesty thank you man..
WOW! Great Video! I knew a lot about it beforehand but I had some detail questions.... and you answered all of them!
Best explanation ever about diodes and AC DC power supply!!