Never mess with a man who draws and writes with both hands 💪

@jazieltripp1040

2 жыл бұрын

i guess im asking the wrong place but does anybody know of a trick to get back into an instagram account..? I somehow forgot the account password. I would appreciate any tricks you can give me!

34:13 Capacitor passes AC to ground and blocks DC keeping it at the side of input power line, not letting it to ground. This produces even DC voltage at power line. This is the best education channel on KZread :)

Sorin with each view of this video I understand more. Thank you.

Thank you, Master Sorin. I Certify/Repair Air Traffic Control Systems for FAA in the USA and learn much from you. I have great respect! People like you make the world a better place!

Thank you Sorin you are not only a practical person you’re an academic teacher

@zoltankecse991

4 жыл бұрын

It's true.

Sorin you will have to correct it because not to confuse transistor opening with with a lock as it does here but it's understandable when you say open you mean is able to lead (Transition status) position of the switch (N.O) means normally open -you're doing a good job Gentlemen, take this opportunity to learn

Thank you for the expiation , very clear now, and all those capacitors are connected in parallel. because they are connected to the power positive. They work hard.

Great explanations. I've been in electronics since the mid 1960"s and have grown up with tubes, transistors, IC's, etc., etc., etc. BUT always the basics stay the same. Devices get smaller, power demands increase, but the theory (and physics) stays the same. It's not magic (usually). Keep it up! We are never to old to learn. We just need better eyes ;-). (You didn't explain that the "B" power term comes from using a "B" battery used in the 20's with the A, B and C battery radios.)

@shindvs1150

4 жыл бұрын

Me too same

Best electronics teacher, lesson for everyone, specialy for smart kids, beginners in electronics. We all need your lesson in electronics. Cel mai bun profesor de electronica, Sorin tine tot asa, cu totii avem nevoie de tine, de lectiile tale unice.

I was waiting for a video like this /for a teacher like Him/ for 20 years! Maybe more! Thank You, Sir!

Absolutely brilliant demonstration with the analogue meter and the capacitor to show how a capacitor works to iron out the ripple of an ac signal, smoothing it out to create a nice dc supply for the output stage of a power supply........

Thank you so much Sorin for the time you spent for our knowledge !

Excellent video Sorin. Makes it all clear now thanks.

thanks Sorin, a great lesson. really good explanation of the capacitors it helped me understand it better.

Hell, you're getting better and better in the explanations, after each video. Excellent Video as always. :)

Thanks for the insights and the complex to simple info.

Keep it up for not being selfish with all this great knowledge in electronics

Thank you for great lessons, now i've got the point how it works

Thank you for the video. One thing got into my mind: Sorin is the first bio-mechanical component in a switching power supply :)

Very informative, well explained Sorin, Thank you....

I love your explanations. I was taught to use open when switch doesn't pass and closed when it does pass.

@hackersgaming1526

5 жыл бұрын

When switch is close coil store megnitic field when open coil discharge +bat =more voltage out by s.diode

WOW you can draw with both hands 😲 now that's COOL !!🤙

Sorin you are the best and Thank you for simplifying for us a hard subject

Thank You for the video, this was very helpful for me. Keep doing the lessons. Greetings!

Sorin is Mister Logic. Great lesson!

Thank you for teaching this old guy!

Thank you very much Sorin, I'm really appreciating your videos.

Thank you for your good explanations. Yo give a very practical approach to electronic repair.

@RafalPospieski

4 жыл бұрын

Xd

Its a refreshing one for me, Thank you so much sir.

Thankyou for sharing your knowledge, you are very good at explaining things.

Excellent video Sorin.

Very nice explanation Sr.! God bless you!

Thank you very much Sorin. You realy help me to understand it! I Love your Videos.

That was very interesting, thank you Sorin.

thank you for a nice tutorial. Greetings from Serbia.

Excellent explanation Sorin

Excellent Video as always Sorin, thank you

This is perfect lector A+ its easy. Very thanks.

Soon will be 50000 subscribers. Congratulations!

Hello Sorin Nice video and next time maybe explain what happens with the coil and how it generates the higher or lower voltage depending on the configuration and the smoothing capacitor after the coil. Actually I think you should start explaining the conversion from ac to dc with a full bridge and show the sinus and what the capacitor does to smooth the sinus to dc because it't easy to explain the role of the capacitor in this case so they can easier understand it's role in the switching power supply. Thank you and keep up the good work!

Nice tutorial video. Very good explanation of things.

Excellent Sorin, Thank You Sir

wow., it Really opens my mind about how it works. thank you very much.

best explanation on youtube......bravo

Great lesson. Thank you very much.

Sorin you are the best! Thank You!

You are the greatest technician i ever seen some times i do wonder how you mastered all this electronics

you did great ;) and now , pfc starting sequence explained similarly would be huge ;) t-hanks

You are a great teacher.

Great video, keep it on, you got very useful videos, thank you

Thank you. Good lesson.

Great Electronics Class!!!

Thank you Sorin. A great video.

Great teacher you are Sorin. However we still use AM modulation in Amateur radio and commercial radio here in the USA.

Thank you Sorin

very interesting lesson , thank you very match

For the first time I can see your face. It was required since long. Thx 😄👍

awesome explaining i understand a lot from you sir thank you sir

Hi sorin, how di, thank you for the videos on power supply, i learning a lot from you.

Sorin,, i had been having alot of difficulty understanding the process as to how mosfet, and capasitors worked in a powersupply , being a dyi person without any formal training in electronics.. however when you expllained there function as a swithch along with how current flows as like am frequency,,,well another door opened in my understanding, now having looked up the parts of a mosfet and capasitor , i now understand how when one fails it stops the flow of curent and thus the next circuit has no power and thus the funcrion of the ..ummm..devise..stops.. i wish i had watched this before.. thank you for another step in my understanding..cheers

if an electronic teacher has watched that video,probably he would give up his job. basic , logic and simple all together.

well explained thank you

Another way of explaining the use of caps and coils is by looking at what is called impedance. In both AC and DC a resistor drops voltage. The equivalent function of caps and coils in AC is called impedance. With caps, the impedance decreases the higher you go in frequency, with coils it is the opposite the impedance increases with higher frequencies. Caps pass high frequencies - in this case to ground, and coils restrict high frequencies, in this case from going further through the circuit. Also what can be mentioned is what a square wave is comprised of. When you create a square wave, it is actually comprised of the fundamental switching frequency, plus odd harmonics in decreasing amplitude. So in your explanation where you are switching the mosfets at 300Khz (the fundamental frequency), also present are the third harmonic or 3x the fundamental = 900Khz, 5x = 1500Khz, 7x - 2100Khz, 9 times or 2700 Khz, etc. all in decreasing magnitude. These are all radio frequencies. So the caps are there to remove the fundamental, as well as those harmonics, which can cause radio interference. They effectively "purify" the DC voltage that goes to the digital circuitry.

NIce job Sorin. I enjoyed it.

Really appreciate this content

Multumesc frumos!!! Felicitari!

yay, learning time!!! :). BTW I gain a lot from your video sir. Thank you

very good, jose from Bolivia..

Great tutorial best teacher! Do you have any tutorial about class D audio power amplifiers and clipping problems in amplified speakers? Keep the exelency and wish the best!

Great explaination

It was very useful and clear. Thank you Sorin. What about coil/inductor ? Could you do a practical session for coils like capacitors?

Thank you mister sorin

good lesson thank you sir

interesting thanks for info it was nice to listen 👍😀👍

I think what would help people out more who are learning, when your drawing schematics you could also have present capacitor , transistor etc (excetera) So people can relate to what you're talking about to the actual schematic and what the competitors MOSFET transistors look like just a thought? And I would like to say I also I'm learning from you thank you for your time.

@electronicsrepairschool

5 жыл бұрын

ok, i will

@sijmengrunbauer7697

4 жыл бұрын

Yes, I agree. Sorin, when you were talking about the dual MOSFET TV power supply, I first thought that the supply line was mains voltage, and was confused about where the isolation was. If you had mentioned things like input voltages, it might have been clearer to me that this was a secondary power supply (at least that is what I now understand). Also, as an Australian, I would like to say, what a great video it was. I look forward to watching more of them.

Good video sony thank you for evry video

Thank you.

Basicly about the capacitor at the end another way of saying is that it keeps the voltage up instead of going straight to zero in the sinewave.

Great job, just the open and closed explanation of the mosfets is inverted. By open you mean current is passing = closed switch. By common meaning, when we say open, means no current can pass through and closed means current will pass through. Thanks for your job.

Thank you....... Lot of my My confusions were vanished...

Perfect lesson. Thanks Sorin!!

I Will watch later but big thanks now !

Thank you!

Great video.

Thank you teacher

Another very good video.You should be teaching in a college.There every day is Friday.

thx for good content!

You are very good teacher I have a question. Why we use power supply in laptops? We cannot just plug 19v to the rest ? Why we use switching ?

If I ever have a daughter, I'm gonna name her 'Dazmean'... lol... thanks for ur teachings.... accent and all. Cheers

Hi Sorin. One of the best video ! Question: why do we modulate using mosfets if the output capacitor make stable like a straight line ? What component generates this modularity connected to base on the left hand side. Thanks

man..you also spicked my understanding

as usual best vedio. if you can please mention the vedios with beginner course, then easy to differentiate.

Thank you Sorin, but you forgot to explain the source and nature of frequency that switches the mosfet through the gate

Nice video

Perfect!

thank you

thanks sorin

Hi Sorin, doesn't the current change at the power supply from A/C to DC in the power pack before the input jack on the laptop? If so, why does the power supply need to have a capacitor on the 19v rail after the input jack? This video is so fascinating, I'm having to rewatch it several times to comprehend it as my understanding of electronics of this kind is very elementary. Thanks for these lessons. You have a big heart. I wish you lived nearby, I would definitely volunteer my time to do things for you even if it was just to be a gopher as long as I could learn from you too. Plus, I would donate some of my laptop parts to you as well for your repairs.

@vlatkosurlan545

4 жыл бұрын

Because the charger gives you a nice, pollished 19V at the input jack but after that, on the motherboard, there are many smaller buck converters which convert those 19V to 5V, 3.3V, 1V etc. The reason for the capacitors is that those small power supplies/buck converters located on the laptop motherboard itself reduce the voltage by generating a modulated pulse which also gives you a choppy signal at the output which looks like this: upload.wikimedia.org/wikipedia/commons/b/b8/Duty_Cycle_Examples.png. So to get a normal, smooth signal which can be consumed by the motherboard you need to polish that pulse to get a steady voltage and that is achieved by those caps.This is what the caps do to the pulse: pcbheaven.com/wikipages/images/pwmmodulation_1236520415.jpg After that, the voltage is steady and ready for consumption.

Sorin you did great. When the cab is shortted because there was a problem. I remove the cab no shots. What can happen? When it looks fine.?

love before watching