I like your videos more and more as my knowledge grows. Please don’t hesitate on explaining how a circuit works or skip the schematic. You have great ideas and it’s great learning when you go into details! Thank you for all your effort. These videos adds more color to my life. Thanks again.
Hello! It has been a while since this video was posted, but it is still pretty up-to-date. When dealing with the inner building blocks, electronics gets more and more fascinating. And you have found a very appealing way to show this. Congratulations!!! As expressed by the others, I too treasure your posts. Thank you for allowing us to see electronics your way.
this is the full explained video i have ever seen in internet about how to MAKE a boost converter & how it works thank you so mach GreatScott! your fan :)
I dont know HOW this guy does this things but he is AMAZING, Seriously i watch his videos almost every day and then i just stare at the screen saying "how does he do that i do not know what he is even talking about".
I kinda understand a few things, but most of it is just "Because of ... and then ... this MOSFET ... this Diode ... according to my schematic ... in the video description ... and let's end this project here!" :P
remo spadaccini I wasn't referring to his accent. I don't know what many of the parts do either. No idea what a MOSFET does, only know how to spell it :P Wasn't a misunderstanding :P
It is a very nice osciloscope there, the project was good to learn, but buck converters are very cheap to buy... the knowledge is always priceless. thanks.
This is exactly what I needed. I also have made solar panel, but want to charge lipo battery. It still does not reach the required voltage on cloudy days and I will need step up converter then. This video helped me greatly as now I have an idea how to make feedback to control the voltage (as I don't know what output my panel will give at any given time). I am super beginner, so I will surely have lots of glitches on my way to success, but this is great video for general concept and tips.
Man, this is a GREAT video. Quick and to the point. You showed the math and the hardware. Love it. Even talked about some enhancement that could be added. Keep up the great work...
My first year of college, I didn't understand a single thing that was said. Now I'm in my second year and it's starting to make a lot more sense. I hope next year I will be able to make this on my own without instructions.
I can relate to this, although im teaching myself i remember not understanding anything in this and many other videos but now i actually undestand and im going to try to build this in next few days
Did you guys know that the hydraulic analogy for this type of boost converter is a *RAM pump!* Google RAM pump and see how they work. Instead of inductance and the flyback effect electric systems use, RAM pumps use the "water hammer" effect, which is perfectly analogous to the flyback effect!
Revi M Fadli you can arrange the components of a RAM pump to create a "buck converter" although its not very useful unless you need to convert a high pressure but low flow-rate source of water into a low pressure high(er) flow rate source without an active pump.
Bruno Henrique Muito interessante dá sua parte. Assim pessoas que não sabem inglês podem ter acesso a esse conhecimento em português!! Se quiser ajuda com a tradução também posso ajudar. Se possível me passe o site para que eu possa ver, sei de pessoas que vão gostar disso! Parabéns pela iniciativa!!
Obrigado pela mensagem. O site já está pronto, a estrutura dele, eu só não coloquei no ar ainda pois ainda não fechei todo o conteúdo para lançar. Além das traduções também disponibilizo um arquivo pdf resumindo os pontos importantes dos vídeos, isso demora muito, mas muito tempo. Até agora traduzi uma série de 5 vídeos sobre fontes chaveadas do canal The Post Apocalyptic Inventor, Tutoriais sobre capacitores pt1 e 2 do EEV Blog, Tutorial sobre Decibéis para Engenheiros do EEV Blog, e agora estou terminando o vídeo "Como não explodir seu osciloscópio também do EEV Blog. Mais pra frente traduzirei alguns do canal Mr. Carlson's Lab que é SENSACIONAL. Lhe mando uma mensagem quando estiver no ar. Abraços.
I designed a very crude boost converter controlled by an Arduino. It was functionally useless and very unstable, but it worked. It was cool as a proof of concept.
I love your power electronics video series. I'd say they are the cleanest and the most well organized ones on youtube. Do some more power electronics videos on Flyback regulators, Charge pumps, and cockroft walton multipliers. Something else I really like to see is AM radio (Transmission and Receiving).
Tha ks a kot sir i am workign on mosfet these days and learning about it thanks for such wonderful tutorial i will give it a try make my own boost convertor
+Blaff3tuur Not quite, he used an Arduino with a shield of his own making to program the code onto the ATtiny85, in fact using the Arduino as an ICSP. I do this myself with a little shield I bought from a guy in Greece. The ATtiny85 is a micro-controller like the ATmega328P in an Arduino but it isn't an Arduino. It has less features, less program memory and less pins but is still quite a powerful chip nonetheless.
With that setup wouldn't you only get a constant pwm signal that just turns off when it reaches its intended voltage? With the attiny he is able to to vary the pwm signal based on how far away the output voltage is from the intended voltage.
He is using the Arduino bootloader. If he was doing this in pure C or C++, we would have to set the data direction register for the output pin's port, as well as set it to be output: DDR? |= (1
I love this, it's like playing chess with electrons.......they move and you don't get the results you want..... Then you make a move by adding a component and then see if they give you the results you want , if not..... It's your move again until the right combination is achieved so fun!! :-)
Since a small boost converter like this is available at low cost, what I would like to see is one designed for input of 10-30VDC and output of 90-130VDC at 2-4KW. For use as input to a 2HP DC motor. The motor would need a speed controller which could probably be incorporated into the boost controller instead of having it follow it.
In theory it could be made. But the current draw would be pretty insane on the low voltage side. Assuming you want to go on the conservative side of the specs: 30v input, 2KW very good efficiency of 95%... 2000w/30v = 66.6A Increase the input power by 5% to account for losses = An extra 3.3A 69.9A input current. Assuming worst case 10v input, 4KW load, 80% efficient: 4000w/10v = 400A Increase the input power by 20% to accoutn for losses = An extra 80A 480A input current.
@@dancoulson6579 Yeah l don't think I thought through the details at the time, but at least 48v would be better. I don't see 70A+ being abnormal though. The surge current on starting will be really high. Maybe 3x briefly. The reason I wanted to go with the lower voltage was to avoid getting so many batteries up front, but then I will be hugely current limited by the batteries. So in the end I just have to buy the $3k in batteries at which point I can just wire them in series for the 130 ish volts and use a PMW speed controller.
To make a much simpler boost converter, just make a joule thief (with a few minor modifications). To make it better, replace the resistor on the transistor with a capacitor and add a schottky diode and low ESR smoothing capacitor to the output. If you are clever enough you could also add feedback that will serve to turn the transistor off once a certain voltage level has been reached using a zener diode or a bunch of LEDs in series connected to another transistor that pulls the base of the switching transistor low once a voltage level is reached.
There are some ways to further increase efficiency of the circuit in the video, one way would be to use a schottky diode with a much lower forward voltage, using a better MOSFET with a lower on state resistance, a higher gate drive voltage (more than 5V) and a mosfet driving stage (to decrease turn on and turn off times and hence decrease switching losses)
When you start wondering about something, search it up on RUclips while at work, watch 10 seconds without sound and like the video to be able to find it again when you come home.
Aljiven Alejo why not use a pwm ic just like in impulse power supplies? Am i missing something? Please correct my statements if i was wrong somewhere. :-)
+Todor Todorov I totally agree but the truth is even high end electronic youtube video creators just buy the parts from china : ( thats why i enjoy scotts vids .
error at 2:10 the correct equation is VL = -L * ( di /dt) the - is important and is fundamental for the determination of the conventional verses of the voltages and currents in the calculations, this is due to the effect of the magnetic field of the spiers traveled by current, which produce a counter-electromotive force equal and opposite to the cause that generates the field magnetic itself
Hey scoot, quick question. So I just watched your follow up video on "If you can build a boost converter without a microcontroller" and I have a couple questions. Why not just buy a DC to DC boost converter IC? Well my guess is that it defeats the purpose of "DIY"
This is a great video on boost converter. loved it!. My one question.. How would the values for capacitor and inductors be calculated? Scratching my head to understand the calculation part. Thanks :-)
What (besides the load on the output circuit) determines the amperage of the output? Would it be the inductance? Also how would one calculate this? Thanks
every Great Scott video: beginning: "ok gonna learn how to make a thing step-by-step.." middle: "ah.. ok.. wha.. hmm.. this is kinda compli..oh wait what's... ok guess ill go back and... end: "guess I wont be making that thing"
@GreatScott! I would suggest that you look up 'military spec soldering'. Your soldering work needs a lot of work. Other than that you could recitify your simple circuit with a simple zener bridge rectifier and feedback over-voltages back to the additional input to maintin a steady output and to reduce overall heat dissipation by your components.
Don Grille Dos4life.com explains flyback boost just Google it. Scott vids are great but sometimes too fast for beginners. Pay attention everytime he adds a new component to make the circuit more stable. Essentially you are pulse charging the capacitor to a higher voltage than the input with the help of an inductor, and the diode prevents the capacitor from discharging on the off cycle.
@@leobla744 V = -L di/dt since we are using a pwm to control the Mosfet , the current through the inductor is not constant but changing with time, the rate at which the currect changes is what produces the voltage across the coil thus heavily depending upon the inductance of the coil.
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
I like your videos more and more as my knowledge grows. Please don’t hesitate on explaining how a circuit works or skip the schematic. You have great ideas and it’s great learning when you go into details! Thank you for all your effort. These videos adds more color to my life. Thanks again.
Hello! It has been a while since this video was posted, but it is still pretty up-to-date. When dealing with the inner building blocks, electronics gets more and more fascinating. And you have found a very appealing way to show this. Congratulations!!! As expressed by the others, I too treasure your posts. Thank you for allowing us to see electronics your way.
It is always a pleasure to see your videos. regards
hehe, pensé que era el único argentino.
Yo pensé lo mismo jaja
Ya somos tres
ya somos 4 narigones jeje
Great video Scott, you're a godsend for beginner and hobbyist electronics enthusiasts like myself.
this is the full explained video i have ever seen in internet about how to MAKE a boost converter & how it works
thank you so mach GreatScott!
your fan :)
Always waiting for: "Stay creative and i will see you next time" :)
don´t forget to like share and subscribe haha :D
that's four years ago,,,
and now is 22/06/2020,,,,
and he's still saying that iconic words,,,,
kind of epic,,, actually,,,,
😊😊
Adding the components one after the other explaining their need really made this easy to understand for me, thank you.
I dont know HOW this guy does this things but he is AMAZING, Seriously i watch his videos almost every day and then i just stare at the screen saying "how does he do that i do not know what he is even talking about".
Watching you it is evident that you are a graduate of electrical engineering school, everything just flies right over my head!
i dont know why youtube didn't recomend me your videos before, are everything that i was seraching! greetings from Argentina
I wish I knew what most of this meant. I always enjoy they videos no matter if I understand it or not lol
I kinda understand a few things, but most of it is just "Because of ... and then ... this MOSFET ... this Diode ... according to my schematic ... in the video description ... and let's end this project here!" :P
Victor Tran no I didn't mean that I didn't understand his accent I meant like the parts lol. Idk what 90%of them do
remo spadaccini I wasn't referring to his accent. I don't know what many of the parts do either. No idea what a MOSFET does, only know how to spell it :P
Wasn't a misunderstanding :P
I'am 11 and I understand all of that.
Victor Tran oh ok
The only electronic channel you can trust 👍
That is one sexy scope.
yup
+Astuces de Trente Secondes - Must Kunst he did? name sorces
that oscilloscope cost 30k
.....Facebook Galaxy? A community? Or it this a joke referring to those BS "deals" on Facebook?
more like 12k but still pretty epensive
"It's not that complicated"
Wow do I feel stupid!
Oof me too
Took me a month of building this to fully understand it lol
Yeah, but you are not stupid
It is a very nice osciloscope there, the project was good to learn, but buck converters are very cheap to buy... the knowledge is always priceless. thanks.
This is exactly what I needed. I also have made solar panel, but want to charge lipo battery. It still does not reach the required voltage on cloudy days and I will need step up converter then. This video helped me greatly as now I have an idea how to make feedback to control the voltage (as I don't know what output my panel will give at any given time). I am super beginner, so I will surely have lots of glitches on my way to success, but this is great video for general concept and tips.
Bro the quality of videos u make is just amazing :D
I wish to meet you once in my life :) You made me learn alot of electronics :)
THANK YOU !!
Man, this is a GREAT video. Quick and to the point. You showed the math and the hardware. Love it. Even talked about some enhancement that could be added. Keep up the great work...
My first year of college, I didn't understand a single thing that was said. Now I'm in my second year and it's starting to make a lot more sense. I hope next year I will be able to make this on my own without instructions.
I can relate to this, although im teaching myself i remember not understanding anything in this and many other videos but now i actually undestand and im going to try to build this in next few days
Did you guys know that the hydraulic analogy for this type of boost converter is a *RAM pump!* Google RAM pump and see how they work. Instead of inductance and the flyback effect electric systems use, RAM pumps use the "water hammer" effect, which is perfectly analogous to the flyback effect!
Power Max what about buck and buck-boost converters?
Revi M Fadli you can arrange the components of a RAM pump to create a "buck converter" although its not very useful unless you need to convert a high pressure but low flow-rate source of water into a low pressure high(er) flow rate source without an active pump.
Power Max
A venturi would do that easily so there would be no point.
wow. just noticed that you passed 250k subscribers. congrats. you deserve them (and all to come).
Scott, thanks for coming up with such good content. Greetings from Brazil.
Poucos brasileiros por aqui né kkkk
Acontece kkkkkk
Emmett Brown poucos. Estou criando um site onde traduzo vídeos desse tipo gratuitamente, se tiver interesse.
Bruno Henrique Muito interessante dá sua parte. Assim pessoas que não sabem inglês podem ter acesso a esse conhecimento em português!! Se quiser ajuda com a tradução também posso ajudar. Se possível me passe o site para que eu possa ver, sei de pessoas que vão gostar disso! Parabéns pela iniciativa!!
Obrigado pela mensagem. O site já está pronto, a estrutura dele, eu só não coloquei no ar ainda pois ainda não fechei todo o conteúdo para lançar. Além das traduções também disponibilizo um arquivo pdf resumindo os pontos importantes dos vídeos, isso demora muito, mas muito tempo. Até agora traduzi uma série de 5 vídeos sobre fontes chaveadas do canal The Post Apocalyptic Inventor, Tutoriais sobre capacitores pt1 e 2 do EEV Blog, Tutorial sobre Decibéis para Engenheiros do EEV Blog, e agora estou terminando o vídeo "Como não explodir seu osciloscópio também do EEV Blog. Mais pra frente traduzirei alguns do canal Mr. Carlson's Lab que é SENSACIONAL. Lhe mando uma mensagem quando estiver no ar. Abraços.
I designed a very crude boost converter controlled by an Arduino. It was functionally useless and very unstable, but it worked. It was cool as a proof of concept.
Nice practical demonstration, a great way to explain the principles.
genius! I have never subscribed from a single video after watching it just once. your video made me do it!
Just discovered your channel. As soon as you pulled out an ATtiny I paused and subscribed :)
I always connect in serious...
You can't be serious!
Yeah he is serious i am sure 😊
Seriously?
Dang dude.. you went HAM on this video.. this inspires me to... step up 😁.. my game!
So nice the world's best teacher
I love your videos, your oscilloscope and your handwriting!
thumbs up for saying "let's find out" instead of "let's find it out" :)
Someones doesn't know that the "dislike" button is NOT for download! 😃😃 ;-) This is awesome video!!
I just watch your videos even if I dont know anything about electric stuff
Same xD
I love your power electronics video series. I'd say they are the cleanest and the most well organized ones on youtube. Do some more power electronics videos on Flyback regulators, Charge pumps, and cockroft walton multipliers. Something else I really like to see is AM radio (Transmission and Receiving).
Great explanation as always. Absolutely legendary! Thank you scott! Nonstop classics :)
Tha ks a kot sir i am workign on mosfet these days and learning about it thanks for such wonderful tutorial i will give it a try make my own boost convertor
OOOHhh It's amazing! sadly i didn't understand everything yet, but it's the most understandable video that i watched ever!
will you do a project with these solar panels ;) hmmm???
+Mustafa Türkoğlu Maybe ;-)
+Yiğit Demirci oğğ bu yorumlarda hiç türk görmemiştim
+Mustafa Türkoğlu şimdi bir tartışma çıkarıp kavga etmemiz lazım :)
+jerry1378 niye
Mustafa Türkoğlu la sen kime niye diyorsun benim kim olduğumu biliyormusun :P :D
Congrats ! Your channel have the validate badge !
You are INCREDIBLE !! It is so clear !
A great companion video to your down converter video, thank-you.
This is by far my favorite RUclips channel.
I absolutely love all the projects you do :D
Oh I loved the smoke at the end of the video! :D
thanks for this I was really in search of this for my project .
I had preferrd it if you used a 555 to create the PWM and an opamp to feedback the output voltage instead of using an arduino :p
+Blaff3tuur An ATtiny85 is not an Arduino.
+Nick B Didn"t he put an arduino bootloader on the ATtiny? But what I was trying to say is that you don't need a micro for this job
+Blaff3tuur Not quite, he used an Arduino with a shield of his own making to program the code onto the ATtiny85, in fact using the Arduino as an ICSP. I do this myself with a little shield I bought from a guy in Greece. The ATtiny85 is a micro-controller like the ATmega328P in an Arduino but it isn't an Arduino. It has less features, less program memory and less pins but is still quite a powerful chip nonetheless.
With that setup wouldn't you only get a constant pwm signal that just turns off when it reaches its intended voltage? With the attiny he is able to to vary the pwm signal based on how far away the output voltage is from the intended voltage.
He is using the Arduino bootloader. If he was doing this in pure C or C++, we would have to set the data direction register for the output pin's port, as well as set it to be output:
DDR? |= (1
very nice video mate ! as always !
Aacomputers and technology needs this
another great scott
Wow great, adding a display with output voltage and current reading would be awesome.
I love this, it's like playing chess with electrons.......they move and you don't get the results you want..... Then you make a move by adding a component and then see if they give you the results you want , if not..... It's your move again until the right combination is achieved so fun!! :-)
+djquestionthis That's why experimenting with electronics can be so fun, you just test things until you get something interesting :D
+Xenro66 Yes!!
myfunwheel_biz only difference is that there's now a higher chance of detonation!
stop smoking weed...
Awesome Video Dude & Circuit. Keep up the great work. Nick.
I have no idea what he is saying, but I luv it
I dont have anything that you said, but i have some metal, some copper, some plastic, some sand, can you start from there ?
Brilliant work bro. I shall implement it myself to study it better and just probably be able to share my findings.
385 views! Never seen a Greatscott video when it's under 1000 views
Because you are my mentor
Since a small boost converter like this is available at low cost, what I would like to see is one designed for input of 10-30VDC and output of 90-130VDC at 2-4KW. For use as input to a 2HP DC motor. The motor would need a speed controller which could probably be incorporated into the boost controller instead of having it follow it.
In theory it could be made. But the current draw would be pretty insane on the low voltage side.
Assuming you want to go on the conservative side of the specs:
30v input, 2KW very good efficiency of 95%...
2000w/30v = 66.6A Increase the input power by 5% to account for losses = An extra 3.3A
69.9A input current.
Assuming worst case 10v input, 4KW load, 80% efficient:
4000w/10v = 400A Increase the input power by 20% to accoutn for losses = An extra 80A
480A input current.
@@dancoulson6579 Yeah l don't think I thought through the details at the time, but at least 48v would be better. I don't see 70A+ being abnormal though. The surge current on starting will be really high. Maybe 3x briefly.
The reason I wanted to go with the lower voltage was to avoid getting so many batteries up front, but then I will be hugely current limited by the batteries. So in the end I just have to buy the $3k in batteries at which point I can just wire them in series for the 130 ish volts and use a PMW speed controller.
can you give me the previous video for how to make programming shields...thanks.
To make a much simpler boost converter, just make a joule thief (with a few minor modifications). To make it better, replace the resistor on the transistor with a capacitor and add a schottky diode and low ESR smoothing capacitor to the output. If you are clever enough you could also add feedback that will serve to turn the transistor off once a certain voltage level has been reached using a zener diode or a bunch of LEDs in series connected to another transistor that pulls the base of the switching transistor low once a voltage level is reached.
There are some ways to further increase efficiency of the circuit in the video, one way would be to use a schottky diode with a much lower forward voltage, using a better MOSFET with a lower on state resistance, a higher gate drive voltage (more than 5V) and a mosfet driving stage (to decrease turn on and turn off times and hence decrease switching losses)
+Power Max I already used a schottky diode, the 1N5819. It's written in the schematic as well.
Man, that's fascinating. Definitely going to stick to ordering boost converters in bulk though.
25 cents is well worth getting rid of all this effort.
That scope is badass
Great Scott,I love this project and I am waiting for quad copter project brother.Thank you
When you start wondering about something, search it up on RUclips while at work, watch 10 seconds without sound and like the video to be able to find it again when you come home.
Finally I understood how they work, I used converters without knowing, mostly because I was afraid of the coils, but they're very cool.
Hey!! Scott I just want to ask if I used 555 timer chip as a pwm signal it will work just asking from a buddy.
Aljiven Alejo why not use a pwm ic just like in impulse power supplies?
Am i missing something? Please correct my statements if i was wrong somewhere. :-)
Yes you can use a 555 but I don't think you can use just the variable frequency alone to change the voltage output.
Thing is you can order them cheaper online than making it , But another great video scott .
This was made for the sake of hobby electronics i believe. Where's the fun at when you buy it? ;)
+Todor Todorov I totally agree but the truth is even high end electronic youtube video creators just buy the parts from china : ( thats why i enjoy scotts vids .
you're right pal
i was looking for a tutorial like this thanks a lot! :)
Very nice video/tutorial, I built a boost converter using my Arduimo Mega2560.
error at 2:10
the correct equation is
VL = -L * ( di /dt)
the - is important and is fundamental for the determination of the conventional verses of the voltages and currents in the calculations, this is due to the effect of the magnetic field of the spiers traveled by current, which produce a counter-electromotive force equal and opposite to the cause that generates the field magnetic itself
i enabled the english subtitles just for fun and it just transformed "with a pulldown resistor on the gate" at 1:03 to "don't resist on the gates" :D
I like the smoke at the end
GreatScott!!! Thank you so much for this video!!!
Hi GreatScott!, What is the IC chip that you used @1:11?
Hey scoot, quick question. So I just watched your follow up video on "If you can build a boost converter without a microcontroller" and I have a couple questions.
Why not just buy a DC to DC boost converter IC?
Well my guess is that it defeats the purpose of "DIY"
love this buddy !! will make it soon 🙌
Nice video! What current clamp are you using? Greetings from Argentina!
I wanted to know the same thing..??
I think is the Hantek CC-65... It's 60 bucks on Ebay.
congratulations what a good project, regards
This is a great video on boost converter. loved it!. My one question..
How would the values for capacitor and inductors be calculated? Scratching my head to understand the calculation part.
Thanks :-)
As always great video. Nice!
texas instruments instruments has great boost converter chips and even an online tool to help you design your own circuit
Great Boosting Sir Scott
So... Do you think one of this circuits can deliver 1.2 Gigawatts for back to the future?
ElectroMan Just plug nuclear power stations in series and maybe it'll work!
Excellent video.
Thanks, Scott. I liked it !
Another thumb up I whould give here, if I could.
Of course we can build it ourself!
What (besides the load on the output circuit) determines the amperage of the output? Would it be the inductance? Also how would one calculate this? Thanks
every Great Scott video:
beginning: "ok gonna learn how to make a thing step-by-step.."
middle: "ah.. ok.. wha.. hmm.. this is kinda compli..oh wait what's... ok guess ill go back and...
end: "guess I wont be making that thing"
@GreatScott! I would suggest that you look up 'military spec soldering'. Your soldering work needs a lot of work. Other than that you could recitify your simple circuit with a simple zener bridge rectifier and feedback over-voltages back to the additional input to maintin a steady output and to reduce overall heat dissipation by your components.
Im pretty sure he will not sell this boost converter to the millitary
@@no_onebanana7167 no kidding!
pleas , can you made video about MPPT ? *-*
I put it on my to do list.
thanks a lot ^^
That would be awesome! GreatScott, can I send you a pm somehow without FB?
I was hoping that you'll use the NE555 for generating the PWM signal
And the feedback?
How do i regulate the frequency please? Nice video by the way. Thanks.
Awesome Video Again..
Yeah, actually this is not that easy. I just can't wrap my head around it.
Don Grille Dos4life.com explains flyback boost just Google it. Scott vids are great but sometimes too fast for beginners. Pay attention everytime he adds a new component to make the circuit more stable. Essentially you are pulse charging the capacitor to a higher voltage than the input with the help of an inductor, and the diode prevents the capacitor from discharging on the off cycle.
Watch the video about that topic by simply electronics. It's much better explained there. After that, the circuit in this video actually makes sense.
34063a works perfectly fine for this use also
Hey GreatScott, what kind of pens do you use in these videos?
I had a feeling this was coming... :)
Does the boost converter aim for a specific voltage, or a certain multiple of the input voltage?
Hey Scott, how does the value of the coil influence the final result?
yeah
it does
@@joshuachettiar86 but how does the coil value influence the voltage?
@@leobla744 V = -L di/dt
since we are using a pwm to control the Mosfet , the current through the inductor is not constant but changing with time, the rate at which the currect changes is what produces the voltage across the coil thus heavily depending upon the inductance of the coil.