Good as this video is, it is yet another example of why it is important to have a human do the narration rather than a text-to-voice system. This video would likely have been better with a real voice.
Good basic explanation. An Analog voltage reduction uses resistance to drop the voltage,,which generates a lot of heat. A Buck convertor storing the charge in magnetic Flux is far more efficient.
I was using artificial voices, but have come to the same conclusion. However, the more recent engines are much better, and a little work at spacing correctly and Interpunktion are essential. Just writing information and read it from a sheet is rarely the information people listen to.
There is so much understandable information here that my brain can’t absorb it all in one view! Great explanation and video!! Must watch it multiple times.
Because youtube is so awesome, they cannot show the dislike counter. For those wondering if this video is good information, this video is UNMATCHED. Everything in this video is true to an Engineering A+. The fact that PWM is discussed and how it is generated further shows a true engineer wrote this video. Excellent information. Thank you for your wisdom!
Typically a sawtooth wave is used, but either way that's how it has been done for decades. Linearity of the triangle or sawtooth is not critical since the feedback circuit cancels any effects of non-linearity. If you are making something like a signal generator then you do want very good linearity.
Yo that's a solid ass video my man. Very very good. Step by step explanation. I never thought of inductors as becoming a battery due to their stored up energy in the magnetic field, and now that i think about it, it feels sooo obvious. Thank you very much
@@ExplorerStuff could you please tell us which software do you use for making animation? if it's possible can you please make the tutorial on your animation?
I recommend 0.75 x speed, if you're using keyboard, click the video, hold shift and press < once if you're using phone, press that three dots on the top right, and select playback speed, set to 0.75 x
3:58 ERROR: Please note that the output voltage is independent of the load. The output voltage only depends on the input voltage and duty cycle. Changing the load could change the output current and hence output power dissipated. But you will still have a fixed average output voltage.
I was thinking the same thing when I saw it. The PWM wouldn't need to change to keep up with the change in load (assuming all the components can handle the higher current).
that's odd I'm having a laboratory work on Simetrix regarding buck converters and my groupmate has the average output voltage and the peak to peak ripple of the output voltage increasing as the load increases
Wow that is amazing I will show it to my students. You could make a boost converter also, then an isolated topology would be nice :). Keep up the good work!
@@ExplorerStuff Many thanks, I was looking for a buck converter and took advice from an Electrical Engineer that said he would never use a cheap converter because it can damage the much more expensive battery, BMS and load, but didn't explain why. So I went to Amazon and found lots of cheap $1 bucks that are tiny and one large for $20, I was confused by the large number of components on the more expensive one when compared to the cheap version as they both claim to do the same thing, now I understand why.
amazing tutorial as ever, 1 more quick tip for you, new challenge emerged on RUclips *Transformerless Power Supply* so 220AC mains dropped with the help of X-rated capacitor (down to 12 volts dc) placed before bridge rectifier, I searched a bit, yes There are few videos about it,(many of them in Hindu language) but almost no any proper video tutorial about it for English speaking audiences, it's good time for you to smash that challenge (make a detailed video about it/especially how to calculate capacitor rates for different low voltages) and become number 1 👍👍👍👍
@@ExplorerStuff not only I think so, I'm pretty sure that you can make it better than many many others ☝, I may have described it not much accurate, it's called x-rated capacitor, I'll put a link here for you to see what I'm talking about
This is a dangerous circuit. 1) No isolation from mains. (Most Important) 2) The Zener is active always (100%) and for large currents. 3) If there was no Zener diode, This would increase the output voltage to the input. 240V. 4) By 2,3 The Zener takes too much current through itself. It will burn in seconds or minutes. 5) If the neutral wire gets grounded (By Mistake or poor wiring), then the output of rectifier is double the input voltage (+240V & - 240V = 480V).
Ok so lately all my car dome/celing lights and dashboard clocks ⏰ have been frying up. Then I checked my car battery 🔋 voltage ⚡ is sending 14.2V to these devices whereas required voltage should've been 12V. I then bought a couple of these dc to dc converters but it doesn't convert 14V to required 12V to these accessories I need..any help?
Excellent video, I have a question, you have technical information if there is any to design a DC DC converter with positive variable input and that has a DUAL symmetrical output (high power approx. 2A) of +15 VDC and -15 VDC. Know of some base design with the theoretical source and some switching regulator.
If the feedback exceeds the reference then the error amplifier will output 0 (ground) and the comparator (PWM Generator) will output +12 volts. This would turn off the MOSFET and the circuit will stop. It's not an issue when the circuit is running, it will stabilize itself. But while designing, it should be considered. Minimum voltage was measured from the circuit.
150kHz is LM259x but the triangle wave of the modulator is only used on LM2574/5/6 which is 52kHz. Next video you need to deal with how the LC filter introduces a double pole and gives a 180degree phase shift.
How do you go about converting a 5 volt 2.4amp up to 9.0 volt 20 way usb charger. I know that you use a LM 09CV rectifier. But I would like all 20 outlets read 9.0 volt. Each output. Please advise many thanks.
Hey this is a dumb question but how did the inductor discharging made a high negative point therep and also why use low voltage diode there Also you said when the constant supply decrease duty cycle decrease , but in the output it looks like the on time increased so duty cycle also increase right? I didn't understand that working clearly
When the inductor discharges (in this video) the current flows towards right thus electrons flow towards left. Also, the left terminal is open (MOSFET is off). This creates excess of electrons near the left terminal thus creating the negative voltage(let -5V). Now, if you give them (electrons) a path to flow, we will not get their accumulation and the only path is towards ground(0V). So we add a diode such that when the inductor terminal gets negative, the diode turns on and allow the electrons to flow. But when will it turn on? That depends on its forward voltage or voltage drop (here ground is positive w.r.t the terminal) (let voltage drop be 1V) The ground will always be at 0V. Now, as the voltage at inductor terminal drops below 1V (or less than -1V). The diode will turn on and thus the voltage will not fall more than -1V. Now, if voltage drop is 0.7V thus it will conduct at -0.7V. So we use a low voltage drop diode. And schottky also works at high frequencies. Hence, a low voltage drop schottky diode.
@@ExplorerStuff hey also when the constant supply decreases you said pwm duty cycle decreases but in the output it looks like the on time width increased so it means the duty cycle increased right ?
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Good as this video is, it is yet another example of why it is important to have a human do the narration rather than a text-to-voice system. This video would likely have been better with a real voice.
Real facts there my man.
Good basic explanation.
An Analog voltage reduction uses resistance to drop the voltage,,which generates a lot of heat.
A Buck convertor storing the charge in magnetic Flux is far more efficient.
Maybe with the new AI technology this video would be a lot smoother
I was using artificial voices, but have come to the same conclusion. However, the more recent engines are much better, and a little work at spacing correctly and Interpunktion are essential. Just writing information and read it from a sheet is rarely the information people listen to.
There is so much understandable information here that my brain can’t absorb it all in one view! Great explanation and video!! Must watch it multiple times.
ruclips.net/video/LiW5phNzwvc/видео.html 👍🙏🙏🎂
True
Fr
Just replace the feedback circuit with Arduino,
i thought i'm the only one who keep repeating this.. but I agree this is great!!
Because youtube is so awesome, they cannot show the dislike counter. For those wondering if this video is good information, this video is UNMATCHED. Everything in this video is true to an Engineering A+. The fact that PWM is discussed and how it is generated further shows a true engineer wrote this video. Excellent information. Thank you for your wisdom!
Nice to see that the circuit is properly grounded !! :)
استمر يا مدهش افضل قناة لشرح الدوائر الالكترونية
Explorer: is a best electronic channel ever as I found online till now. keep it up you are doing tremendous job.
The explaination of Inductor and Capacitor in this video is sarcastically more understandable than those dedicated videos out there.
Triangle wave as a duty cycle template with the comparator is freaking genius.. never crossed my mind before.
Typically a sawtooth wave is used, but either way that's how it has been done for decades.
Linearity of the triangle or sawtooth is not critical since the feedback circuit cancels any effects of non-linearity. If you are making something like a signal generator then you do want very good linearity.
Yo that's a solid ass video my man. Very very good. Step by step explanation. I never thought of inductors as becoming a battery due to their stored up energy in the magnetic field, and now that i think about it, it feels sooo obvious. Thank you very much
😮
This is the best channel on electronics for sure. So much detail and The explanation is perfect!
True bro!
Yep, I agree with you
Too bad it's a busted ass representation and explanation of what's going on.
Try "the engineering mindset channel " and then compare.
seriously underrated video.
i will remember this video as one of the videos to watch learning electronics.
Wow just wow, no comparison of your video.
Great work man, just great.
Glad you enjoyed it!😄
@@ExplorerStuff could you please tell us which software do you use for making animation? if it's possible can you please make the tutorial on your animation?
PWM is so useful in current regulation in everyday devices. Cheap, reliable components for speed control, etc are such a convenience
Excellent explanation and video, you explained things way better than my electronics engineering professors do, lol!
Bestest video on buck convert..thanku Sir
Brazil, Great explanation.
Thanks for sharing this video and information. I was especially happy to learn something new
By far the best explanation of Buck Converter!
ruclips.net/video/LiW5phNzwvc/видео.html 🙏👍👍
Great explanation, I am glad I studied Mechanical engineering.
🤣🤣😂😂
Just what I was looking for, and more! The animations really helped.
The videos help these concepts make a whole lot more sense
Dude you gotta come back, these videos are are the most amazing things i have ever seen
I wish I had this video in high school when I studied electronics
Which school teach this in high school 🤔🤔
@@omsingharjit in Skopje High School for electrotechnic and electronics Mihajlo Pupin
@@igorpetrusevski5399 nice education system
This stuff is not school level tech tbh, it is more like university level engineering;)
@@organicfarm5524 maybe in your country. In my country it's a high school material.
At university we learn to design the ICs
I recommend 0.75 x speed,
if you're using keyboard, click the video, hold shift and press < once
if you're using phone, press that three dots on the top right, and select playback speed, set to 0.75 x
I recommend 1.5x speed
Unbelievably good video! Thanks for making it
ഭയങ്കര സംഭവം തന്നെ ഈ ഇലക്ട്രോണിക്സ്
3:58 ERROR: Please note that the output voltage is independent of the load. The output voltage only depends on the input voltage and duty cycle. Changing the load could change the output current and hence output power dissipated. But you will still have a fixed average output voltage.
I was thinking the same thing when I saw it. The PWM wouldn't need to change to keep up with the change in load (assuming all the components can handle the higher current).
that's odd I'm having a laboratory work on Simetrix regarding buck converters and my groupmate has the average output voltage and the peak to peak ripple of the output voltage increasing as the load increases
@@davidglendaleardenaso8735 what control/feedback system are you using?
@@yumyum7196 a simple buck converter circuit with a PWM as switch where we find which load resistor/inductor has the boundary conduction mode
It has a maximum power rating tho. So, when it draws more current, the voltage will drop.
It's a great knowledge
I'm also study electronics engineering and
This channel's video helpful
what stuff do you learn in electronic engineering?
i really do not think you study anything
Very usefully and easy understand please more video
Very nicely explained video
So much detailed video great explanation :)
Excellent explanation which I have never such explanation before
Thank you for this valuable information !
Thank you for video. 👍👍
Very Easy Method For an explanation
Marvelous job!
I am delighted with your video.
I am a mechanical engineer.. after watching this video, i understood life is difficult..
COOL, electronics is always fun to learn
it is a lot better than my tutor.
Thank you for making such a great video
THIS IS BEAUTIFUL!
Very, very good. Congratulations.
Well explained. Excellent items also buck converters. Thanks for the great video. 👍👍
Great video ! With your permission, I have downloaded this beautiful video and I am looking forward to your next videos. Sincerely yours from Iran.
so nicely explained
Very very nice explanation👑with details👍
Amazing Animations.
ruclips.net/video/LiW5phNzwvc/видео.html 👍👍🙏🙏
Really great videos. Thanks
The explanation is fantastic
Great Video with perfect Explanation and easy to catch the meaning
Wow that is amazing I will show it to my students. You could make a boost converter also, then an isolated topology would be nice :). Keep up the good work!
Thanks you so much. It would be an honor. 😃
Boost converter is next.
Isolated topology will be later, after inverter. 👍
@@ExplorerStuff Many thanks, I was looking for a buck converter and took advice from an Electrical Engineer that said he would never use a cheap converter because it can damage the much more expensive battery, BMS and load, but didn't explain why. So I went to Amazon and found lots of cheap $1 bucks that are tiny and one large for $20, I was confused by the large number of components on the more expensive one when compared to the cheap version as they both claim to do the same thing, now I understand why.
@@_John_P Glad it was helpful.😀
amazing tutorial as ever, 1 more quick tip for you, new challenge emerged on RUclips *Transformerless Power Supply* so 220AC mains dropped with the help of X-rated capacitor (down to 12 volts dc) placed before bridge rectifier, I searched a bit, yes There are few videos about it,(many of them in Hindu language) but almost no any proper video tutorial about it for English speaking audiences, it's good time for you to smash that challenge (make a detailed video about it/especially how to calculate capacitor rates for different low voltages) and become number 1 👍👍👍👍
Glad you think that I can do it.😄
And, Is it about the capacitor voltage divider?
I think I saw that.
@@ExplorerStuff not only I think so, I'm pretty sure that you can make it better than many many others ☝, I may have described it not much accurate, it's called x-rated capacitor, I'll put a link here for you to see what I'm talking about
@@ExplorerStuff m.ruclips.net/video/77kUPirIvvM/видео.html
This is a dangerous circuit.
1) No isolation from mains. (Most Important)
2) The Zener is active always (100%) and for large currents.
3) If there was no Zener diode, This would increase the output voltage to the input. 240V.
4) By 2,3 The Zener takes too much current through itself. It will burn in seconds or minutes.
5) If the neutral wire gets grounded (By Mistake or poor wiring), then the output of rectifier is double the input voltage (+240V & - 240V = 480V).
So, I won't be doing it. It's Dangerous.😄
nice Briefing. Very Good.
Good job 👍 👏
Waiting for your next upload.
Thank you!😄
Will be soon.😁
@@ExplorerStuff Can you explain the IGPT transistor
I love nerdy shit even though I don't understand all of it. Still cool, I ordered one to play around with.
This quality of animation and simulation to ease the deep understanding could make your channel the best....ever ! :)
I am very...impressed !!! :)
Beautiful video..!!!
What software to build this video bro?
Thank you very much for your animation
6:17 Source and Drain orientation is also inverted depending on dope type. As if D and S weren't confusing enough terminal names to begin with.
Very deep understanding
beautiful, just a wonderful explanation!
Love this channel keep going.
I like the anime... Keep up the awesome content Dude. 👍
Awesome video
Ok so lately all my car dome/celing lights and dashboard clocks ⏰ have been frying up. Then I checked my car battery 🔋 voltage ⚡ is sending 14.2V to these devices whereas required voltage should've been 12V. I then bought a couple of these dc to dc converters but it doesn't convert 14V to required 12V to these accessories I need..any help?
Excellent video, I have a question, you have technical information if there is any to design a DC DC converter with positive variable input and that has a DUAL symmetrical output (high power approx. 2A) of +15 VDC and -15 VDC. Know of some base design with the theoretical source and some switching regulator.
I kind of lost at 8:30 :
Why the feedback voltage shouldn't exceed the reference voltage 8:30 ?
How the minimum output voltage was calculated 8:45 ?
If the feedback exceeds the reference then the error amplifier will output 0 (ground) and the comparator (PWM Generator) will output +12 volts.
This would turn off the MOSFET and the circuit will stop.
It's not an issue when the circuit is running, it will stabilize itself. But while designing, it should be considered.
Minimum voltage was measured from the circuit.
@@ExplorerStuff thanks for the great video and your reply !
Thank you bro for the wonderful animation
Any time Bro.😁
This video explain better than my 4 years study of degree in mechatronics engineering
Hello Sir,
Which tool have you used to generate the animation?
Manh.. Really great content you provide 😍
Thank you so much 😀
@@ExplorerStuff most welcome sir.. Keep providing such amazing content.. Appreciate your hard work ❤️❤️🙏🙏
Very very good! Thanks a million 🤗
good explanation .Thanks
This is the video I was needing
Amazing! Very instructive!
Thanks for valuable explanation..
Wow, this is better than Sciencephile
If it is okay for you, can you kindly tell me the name of the software used to create the animations please.
thank you for you video,it's help me get the dc-dc convert point:the mosfet and the pwm.
Very very goooooooooooodd😊😊😊😊Hello. Please explain how the Tesla coil works. Thank you❤❤❤❤❤❤❤
thanks for great work
What program do you use to make this video?
Thanks for your education
Very nice explanation and fantastic animation
2:00 How can the inductor supply current to load if MOSFET is open? there is no complete circuit. For that you need diode isnt it?
Excellent video 👍❤
150kHz is LM259x but the triangle wave of the modulator is only used on LM2574/5/6 which is 52kHz. Next video you need to deal with how the LC filter introduces a double pole and gives a 180degree phase shift.
This is just a robot giving a lesson on its anatomy.
amazing tutorial, thanks.
Very very good
How do you go about converting a 5 volt 2.4amp up to 9.0 volt 20 way usb charger. I know that you use a LM 09CV rectifier. But I would like all 20 outlets read 9.0 volt. Each output.
Please advise many thanks.
Real very very helpful please make videos on dc inverter
Thank you.😄
Inverters are large and complex. It will be done in parts.
This is one part of it. More will be covered in upcoming videos.👍
Thanks for replying requesting you to make play lis for inverter cause it is being used in now in most of Electrical home appliance
What kind of TTS software you are using?
Google text to speech.
@@ExplorerStuff why don't you let a real person do the speaking? The lack of emphasis and breathing breaks is annoying.
Very nice Sir thanks 👍💐
Thank you this lesson
Fantastic 👍
Nice info, thanks for sharing :)
Hey this is a dumb question but how did the inductor discharging made a high negative point therep and also why use low voltage diode there
Also you said when the constant supply decrease duty cycle decrease , but in the output it looks like the on time increased so duty cycle also increase right? I didn't understand that working clearly
When the inductor discharges (in this video) the current flows towards right thus electrons flow towards left. Also, the left terminal is open (MOSFET is off). This creates excess of electrons near the left terminal thus creating the negative voltage(let -5V).
Now, if you give them (electrons) a path to flow, we will not get their accumulation and the only path is towards ground(0V).
So we add a diode such that when the inductor terminal gets negative, the diode turns on and allow the electrons to flow.
But when will it turn on?
That depends on its forward voltage or voltage drop (here ground is positive w.r.t the terminal) (let voltage drop be 1V)
The ground will always be at 0V.
Now, as the voltage at inductor terminal drops below 1V (or less than -1V). The diode will turn on and thus the voltage will not fall more than -1V.
Now, if voltage drop is 0.7V thus it will conduct at -0.7V.
So we use a low voltage drop diode.
And schottky also works at high frequencies.
Hence, a low voltage drop schottky diode.
@@ExplorerStuff hey also when the constant supply decreases you said pwm duty cycle decreases but in the output it looks like the on time width increased so it means the duty cycle increased right ?
@@ExplorerStuff thanks for the reply
Yeah, it increases😅.
Thanks for noticing.
@@ExplorerStuff yeah was confused 😅
Good effort. At 5:30, please note a Ramp is used as input to the PWM opAmp. Not a triangular wave.