This is an explanation that a lot of people have been searching for - me included. Considering how most of us struggle to get something working, it's reassuring to know that somebody who clearly understands the subject also spent 3 months to complete the project.
Finally, someone who has given the most complete explanation from motor dynamics to control philosophy of the ESC. My compliments on the great effort, much thanks 👍🏻🙏🏻
I've been doing DIY electronics for sometime now and, I must say without a doubt that this is perhaps the best and most comprehensive video detailing the principles and circuitry. I usually don't comment, but this was beyond awesome (I'm saying this as a fellow engineer). I'm expecting a lot more of these fantastic videos! Kudos to you!
Seshagopalan T M wow, your comment means a lot to me and motivates me a lot. thank you very much! Ihope you'll enjoy all of my future videos. keep up and have a great day
Seshagopalan T M very true.. I am did not even know hot to start the process of making a esc but I really wanted to make one.. I liked your video and will make a esc too for 60A current..
As professional electronics design engineer for safety related parts I am impressed of the explanations of the esc. Very good for beginners and more. Thank You Michael
Absolutely Fantastic ! I did electronics 30 years ago, and i wanted an update in sufficient detail to understand how to control these DC Brushless motors. I have been looking for an explanation at this level for a long time and i am delighted that you not only post such great and clear information, but you also share how to build it. Unfortunately i only learn these days, no time to actually make anything. Thank you for posting such a great video, you got a new subscriber. I am in Southern China, if you can only see the amount of Electronics available at the local market, you will want to live here.. a whole building with 6 floors, and about 30+ stalls on each floor. And there ais more than one building here ! Electronic Paradise !
This is one of the best videos I have ever seen on RUclips. You have a gift for explaining complex topics. Congratulations and thanks for all the hard work!
Nice video Thanks so much! The threshold gate voltage for a MOSFET is around 3 to 7V (for high current) 0.7V is for bipolar ones :) There is not threshold voltage between the drain and the source, only an internal resistance!
you're gifted!!! You know how to teach! I've been struggling trying to understand and feeling as it was too much for my brain for years and suddenly you've made it simple ! Thanks,Live Long and Prosper ; ) !!!!!
The controller is the hardest concept for me to grasp as it relates to the ability to create the continual rotation and speed in a brushless DC motor. Thanks for tutorial to help understand that without this control the rotation could not be realized.
I HAVE BEEN ON RUclips SINCE NOW A HALF A YEAR LOOKING FOR SUCH A CLIP FINALLY, THANKS FOR THE VIDEO YOU HAVE ANSWERED ALL MY QUESTIONS AND THANKS FOR GOOD DETAILED LESSONS
I would like to express that this is wery perfect explanation of that topic. I had a raw idea, how it is working, but now I understand it all. PERFECT VIDEO, thank you for that very much!
This is a very valuable video and I learned a lot! As a fellow RUclipsr I know you put a lot of work in this masterpiece. Keep it up! You will get more speed out of it when you use direct port manipulation in stead of digitalWrite ;-)
Joop Brokking Hi there. You know, I follow your channel for some time. thank k you very much. and yes, the new code has a one input and each sequence is controlled by output registers in order to increase switch speed. thank is a lot!
O sea, pretendes que, hable en español, que te llame por teléfono a Perú. y que te venda sólo 3 prototipos, cuando podes comprarlo hecho en ebay o alguna pagina china?. Es para aprender, no para vender. Si no te das cuenta de todo esto vos solo, no creo que sepas cómo usar los motores, simplemente no te da la cabeza
Man: you have done some really awsome job here!!! It is hours I am searcing the web to understand brushless motors and esc and you answers almost all my questions in ones!! Thanks a lot! :) Just keep on making video: you are extremly good in explkaing your knowledge :)
Thank you for this video. The information is very detailed and tells me what I wanted to know. I also like how you comment about how difficult it was to do, and how many attempts and documents you had to study in order to get this done right. Obviously it cost more money to build one yourself, then buy something - but this is what you need if you want to learn to make something.
This was an amazing video. I don't see many of this kind on RUclips nowadays. I've always been interested in building a motor controller myself and you showed exactly how to do it. Additionally you did an exceptional job at explaining electrical concept (making me realize what I've been doing wrong). It looks like you have put a lot of effort into this project, it's really visible. I immediately subscribed and hope your channel will grow a lot - work this good really deserves it. I now know that I probably don't want to build an ESC, but this was very interesting. I also think a software tweak could make your motor run more smoothly and efficiently by fading the output in a sine curve instead of just switching on and off.
This is among the highest signal to noise ratios of any channel of its type, that I’ve found. He jumps right in and it’s solid until the end. Well done. Beyond this, every video so far ALSO manages to strike a perfect note complexity-wise. In each thing covered, he explains the underlying electronic principles involved without click baiting or talking down to us. He doesn’t skim over hard concepts BUT ALSO doesn’t get bogged down in overwhelming complexity either. It cannot be easy to remember not knowing something but he has a knack. Alternatively, he’s an idiot-whisperer and I am compelled to learn from him. Either way…I’ll take it.
Incredible video!! Helped me so much! I only have one problem, I cannot figure out how the potentiometer is connected to the arduino...Could you please clarify how to connect the pot? Thanks
The driver you used doesn't provied 11V but way more, there is a charge pump with a capacitor, if you use only N MOSFET the upper MOSFET need a gate voltage higher than you supply 11.1V! (around 7V higher, often twice the supply). The lower MOSFET is easy to drive (11.1V or 0V) Your explaination would have been compatible with a complementary N and P MOSFET driver 🙂 Hope you will understand 🤗
dude this is the most easiest bldc drive theory to understand so far. however i did not get the last part where we need to get the value zero in order to get timing for zero crossing or switching time of mosfet.
Don¡t worry. It's simple. Using sensorless motors you can't know when to switch. So by theory the perfect moment to switch the sequence is the zerco crossing. If you make the sum of the 3 outputs should always obtain the zero crossing value. and when the floting signal corss that value you make the switch. quite easy... Thank you!
Very good explanation. I am looking forward to try it. This is the first video that I found to explain and shows how to replicate a sensorless back emf based ESC. Very good! Very valuable.
hola señor, soy de la india, tengo quince años y realmente me gustan sus proyectos y también estoy tratando de hacerlos y divertirme haciendo proyectos arduino.
ELECTRONOOBS Amazing! You're incredibly dedicated to your project and I admire that a lot. May I ask whether you have any use for this in mind? Hoe about building a really high-powered version of this (something I think off-the-shelf ESCs don't offer)?
I have just recently discovered your channel and must say I am very impressed by the depth and quality of your presentations. I also liked the idea of "beefing up" PCB tracks to handle greater current; I have blown tacks in past both on PCB's and VERO board! The only small criticism is the annoying background "music", totally unnecessary.
Very nice presentation, but you got the MOSFET part a bit wrong. The threshold voltage for MOSFETs are at least 2V (0.7V is a similar parameter of the bipolar transistors) and in power MOSFETs it may be as high as 3V to 4V. To get the IRF3205 going you need a gate-source voltage of at least 4.5V, but its resistance will continue to drop significantly if you give it more voltage. It will drop a lot at 8V and it will continue to drop more even for voltages above 15V. Now the main problem is that the high MOSFET when ON has a source voltage of about the power supply since it works as a switch with very low voltage drop (11.1V in that case). So the gate voltage needs to be at least 8V or more above that, which is 19V. Another problem is that despite the fact that the MOSFET is activated by voltage, it has some gate capacitance, and in order to increase the voltage of a capacitor, you need to supply current. The capacitance is of the order of some nF, which looks small, but if you need to load it fast you need a lot of current. For example a 5nF capacitor that needs to be loaded at 10V in 200ns, needs a current of 250mA (for 200ns of course). Faster and/or MOSFETs with higher gate capacity may require current pulses of several Amps. MOSFET drivers are optimized to supply the high current pulses and the high voltages the transistors require by the logic level signals of an MCU, even above the supply voltage. Also, using power transistors without heatsink is not a good practice, you downgrade significantly their power handling capability and their reliability.
I LUV this newly found Channel! So educational yet enjoyable! 2 Thumbs UP! This is the first time I understand how an ESC used in remote control cars work.
Also, I've learned you scheme and photo of final device and there is deference with items list: 1. Two MOSFET IRF3205 transistors - why two if you used 6 ? 5. Ten 0,1uF 0805 size capacitor (pack-100: 1€) LINK eBay - found 7 on your sheme 6. Six 22uF capacitor (pack-10: 1€) LINK eBay - where is it on the scheme? 7. Ten 22pF capacitor (pack-100: 1€) LINK eBay - and those too ? 11. Huge 4700uF 16V capacitor (1€) LINK eBay - there is 680uF on scheme, it this the one ?
Amazing talent , extremely best explanation strongly motivates me to pursue my 36pole motor project, I have a 100Vdss , 3.0mega ohms , 180a, N channel Power MOSFET can you advice what is the best mosfet driver I will use?
I am so impressed with your talent did follow your build for esc controller. A follow your code with back emf....But a have problem the potentiometer is not controlling the speed ,but you could see it in the serial monitor its working if you could help me this thanks .
Awesome video, inspiring too For DIY project- I’m trying to build gate opener. Few questions, if you could answer please; 1-which motor is enough for 200kg sliding gate.(any link or product specs) 2-forward/reverse bi-direction rotation(how to achieve) 3-anyway to have a motor speed control possible? I’m willing to do this for months but no guidance is stopping me.
Hello :) I have had much better luck doing very fast sampling of the back-EMF using the comparators, rather than using the ADC. One reason this can help is that noise from PWM switching does not get sampled all at the same time with the ADC, so doing the math without some other form of assistance (synchronous to PWM or when it is expected that there should not be noise) will often miss this and get noise in the zero-crossing detection. This has caused some confusion in various literature that typically says back-EMF sensing can only be done at certain times within the PWM cycle (not true). After the basic driving, there is quite a lot to do in terms of compatibility with many motors. The back-EMF sampling method above can help a lot, but there are lots of corner cases where the back-EMF from the undriven phase can be "blinded" by other effects such as coil inductance and current flow from the previous commutation step. Often a delay proportional to the last timing is added (a "blanking period") so as to let this current collapse before sampling. There are also ways to improve the smoothness of starting, to recover from stalls, etc. It is certainly interesting. Nice video!
I agree. There is an interesting Application note from Microchip that explains this method you're referring to: ww1.microchip.com/downloads/en/AppNotes/01083a.pdf
Dear, I appreciate your video, there is a lot of very useful information and you see a lot of effort put in. The explanation of engine management is superb. Unfortunately the handling of the fets is a fallacy, you could shoot them with any bjt like bc337 .... and put P and N channel complements, so you don't need the driver. I really appreciate your video and am clapping my hands, all your effort. Thank you very much, please do not take my comment as something negative since I only wanted to contribute to your evident effort. without further my humble thanks. Health.
Great video and explanation!! :D Kudos for the hard work you've put into building the ESC and teaching us all of it for free. (Y) You deserve a lot more subscribers. Thanks so much :)
Nice video, thank you. But I think I might spot an error in the picture between 3:40 to 5:00. For a DC motor with 6 stator poles, it need to switch 12 times to complete one rotation. The switch count is twice as required by the 3 poles motor, while you already shown the 3 poles motor switch 6 times to complete one rotation in 2:00
Vth for mosfet is about 5V, where did you get this 0,7V from? That sounds more like bipolar transistor. Arent your transitors hot? You loose a lot of power on them. Output of 328 can not get up to 11V when you power it from 11,1V, it's more like 9-10V. The current that you can drain from AT328(Arduino) is 30mA, not 200mA.
HEY! I'm doing a project on flywheel energy storages, and it basically has a motor/generator , connected with a spining mass. it would charge up with an ESC, discharge with a full bridge rectifier. but in this case, this thing would need to spin up to an insane speed in order to store an acceptable amount of energy, therefor, just wanna ask you if you are interested. AWESOME WORK THERE BUDDY!!! I feel it man, gotta go through this EVERY DAY... my phone is full of datasheets... actually still fun to me :P.
I'm really happy for your excellent video. May you live a long life Full of gladness and health . May all God's blessings descend upon you. May peace be within you. May your heart be strong. May you find what you're seeking wherever you roam. Please could you make similar kind of video for stepper motor controller driver? How to design a stepper motor control driver step by step ?
So good... Watched it a second time now and going to watch it further times, to realy be able to start creating. Until now the best explenation with all infos as easy as possible. Thanks for that and would love to give you the fair credits for that. It is so great to share knowledge. This is the start to a free world. Thank you very much!!! )))
Hi, I have a question. In your circuit you use 2 capacitors at the input of the IR2301. I know those capacitors have the function to stabilize the voltage, right? But how do you calculate the values of the capacitor? And do you place them at random points or only at the input/output? This is what I always wonder when I see bigger schematics with random capacitors and inductors in it.
Those values are given by the manufacturer in the basic circuit diagram. See the datasheet of the drivers and you'll have the values. Those values are calculate after tousands of tests of delay time etc... Keep up!
Hello, I have a question. You have 6 mosfets so you need 6 pwm as you used in the code. Lets assume that you can not the signal and you will need 3 pwm pins. Now the question is, why with a bought ECS you have to use only one pwm signal? What is different in that construction. Thank you and great video
I think the first animation at 3:00 is incorrect. It is also different that the other at 5:18. In the first animation the north and south poles are 'overtaking' each other, the red and blue poles swap. In the second animation the red pole is always in front of the blue pole.
Sorry for bad MOSFET explication:
Better theory here: www.electronics-tutorials.ws/transistor/tran_7.html
Electronoobs oh, i lost you at that part
Electronoobs iI'm ol
Electronoobs Not a bad BJT explanation
El
How did you do the LED MOSFET state simulator without any transistors?
This is an explanation that a lot of people have been searching for - me included. Considering how most of us struggle to get something working, it's reassuring to know that somebody who clearly understands the subject also spent 3 months to complete the project.
Finally, someone who has given the most complete explanation from motor dynamics to control philosophy of the ESC. My compliments on the great effort, much thanks 👍🏻🙏🏻
I've been doing DIY electronics for sometime now and, I must say without a doubt that this is perhaps the best and most comprehensive video detailing the principles and circuitry. I usually don't comment, but this was beyond awesome
(I'm saying this as a fellow engineer). I'm expecting a lot more of these fantastic videos!
Kudos to you!
Seshagopalan T M wow, your comment means a lot to me and motivates me a lot. thank you very much! Ihope you'll enjoy all of my future videos. keep up and have a great day
It's 30 minutes past 11 PM here, I won't be sleeping tonight until I watch all the videos on your channel!
Seshagopalan T M very true.. I am did not even know hot to start the process of making a esc but I really wanted to make one.. I liked your video and will make a esc too for 60A current..
As professional electronics design engineer for safety related parts I am impressed of the explanations of the esc. Very good for beginners and more.
Thank You
Michael
Thank you!
Absolutely Fantastic ! I did electronics 30 years ago, and i wanted an update in sufficient detail to understand how to control these DC Brushless motors. I have been looking for an explanation at this level for a long time and i am delighted that you not only post such great and clear information, but you also share how to build it. Unfortunately i only learn these days, no time to actually make anything. Thank you for posting such a great video, you got a new subscriber. I am in Southern China, if you can only see the amount of Electronics available at the local market, you will want to live here.. a whole building with 6 floors, and about 30+ stalls on each floor. And there ais more than one building here ! Electronic Paradise !
phantomrose1999 wow, that seams nice. Thanks for your comment! Keep up!
Hey you are the only one who tries to make diy things which are both accessiable and cheap than other youtuber 👍👍👍
This is one of the best videos I have ever seen on RUclips. You have a gift for explaining complex topics. Congratulations and thanks for all the hard work!
David Semeria oh, your comment motivates me. thank you very much!
I am going into 4th year of computer and electronic engineering and I cannot believe I am only discovering your page now. Amazing stuff!
Nice video Thanks so much! The threshold gate voltage for a MOSFET is around 3 to 7V (for high current) 0.7V is for bipolar ones :)
There is not threshold voltage between the drain and the source, only an internal resistance!
you're gifted!!! You know how to teach!
I've been struggling trying to understand and feeling as it was too much for my brain for years and suddenly you've made it simple !
Thanks,Live Long and Prosper ; ) !!!!!
The controller is the hardest concept for me to grasp as it relates to the ability to create the continual rotation and speed in a brushless DC motor. Thanks for tutorial to help understand that without this control the rotation could not be realized.
U welcome, glad to help!
I would like to make an esc, first i thought i needed hall sensors, but not all moters have them. Thanks for sharing all this great info
"We all know the faraday law of induction" Bro I'm just a lost CS student
ｔｒｉｓｉｍｉｘ EE student here, still didn’t fully understand it.
CS here.. what am I doin here lol.. oh I forgot that I signed up for Hyperloop competition lmfaoo
Bro, go back to you breadth first search and $150k+ salaries, we tryna BUILD over here!
This video will save you hours and days of google searching, it’s worth the watch all the way through
Thank you! You should also check the new versions! They work very well!
I am a software engineer and a electronics noobie even I understood everything from top to bottom. Great explanation.
I HAVE BEEN ON RUclips SINCE NOW A HALF A YEAR LOOKING FOR SUCH A CLIP FINALLY, THANKS FOR THE VIDEO YOU HAVE ANSWERED ALL MY QUESTIONS AND THANKS FOR GOOD DETAILED LESSONS
I would like to express that this is wery perfect explanation of that topic. I had a raw idea, how it is working, but now I understand it all. PERFECT VIDEO, thank you for that very much!
I'm glad you like it 🤩
This is a very valuable video and I learned a lot! As a fellow RUclipsr I know you put a lot of work in this masterpiece. Keep it up!
You will get more speed out of it when you use direct port manipulation in stead of digitalWrite ;-)
Joop Brokking Hi there. You know, I follow your channel for some time. thank k you very much. and yes, the new code has a one input and each sequence is controlled by output registers in order to increase switch speed. thank is a lot!
+Electronoobs quiero comprar 3 con motores esc de 3800 w llamar 931292223 peru
Agreed. Very useful video, thank you.
O sea, pretendes que, hable en español, que te llame por teléfono a Perú. y que te venda sólo 3 prototipos, cuando podes comprarlo hecho en ebay o alguna pagina china?. Es para aprender, no para vender. Si no te das cuenta de todo esto vos solo, no creo que sepas cómo usar los motores, simplemente no te da la cabeza
It's Joop!! I'm a fan!!
Man: you have done some really awsome job here!!! It is hours I am searcing the web to understand brushless motors and esc and you answers almost all my questions in ones!! Thanks a lot! :) Just keep on making video: you are extremly good in explkaing your knowledge :)
Thank you for this video. The information is very detailed and tells me what I wanted to know. I also like how you comment about how difficult it was to do, and how many attempts and documents you had to study in order to get this done right. Obviously it cost more money to build one yourself, then buy something - but this is what you need if you want to learn to make something.
You are totally right. Thank you very much!
This was an amazing video. I don't see many of this kind on RUclips nowadays.
I've always been interested in building a motor controller myself and you showed exactly how to do it. Additionally you did an exceptional job at explaining electrical concept (making me realize what I've been doing wrong). It looks like you have put a lot of effort into this project, it's really visible. I immediately subscribed and hope your channel will grow a lot - work this good really deserves it.
I now know that I probably don't want to build an ESC, but this was very interesting. I also think a software tweak could make your motor run more smoothly and efficiently by fading the output in a sine curve instead of just switching on and off.
Paul Hendrix thank you very much. your comment motivates me a lot. thanks again! I hope you'll enjoy my future videos.
This is the best video I have seen for electronic speed controller.
Super informative, solved the EMF myth for me. 🙏🙏🙏🙏
Kamran Aghlami thank you. I'm glad it helped you! I hope you'll like all my videos. keep up
This is among the highest signal to noise ratios of any channel of its type, that I’ve found. He jumps right in and it’s solid until the end. Well done.
Beyond this, every video so far ALSO manages to strike a perfect note complexity-wise.
In each thing covered, he explains the underlying electronic principles involved without click baiting or talking down to us. He doesn’t skim over hard concepts BUT ALSO doesn’t get bogged down in overwhelming complexity either. It cannot be easy to remember not knowing something but he has a knack.
Alternatively, he’s an idiot-whisperer and I am compelled to learn from him. Either way…I’ll take it.
I always watch his videos. So detailed and well explained. I like and recommend to new ele-enthusiasts.
Incredible video!! Helped me so much! I only have one problem, I cannot figure out how the potentiometer is connected to the arduino...Could you please clarify how to connect the pot? Thanks
found?
Use analog pin to connect the potentiometer
The driver you used doesn't provied 11V but way more, there is a charge pump with a capacitor, if you use only N MOSFET the upper MOSFET need a gate voltage higher than you supply 11.1V! (around 7V higher, often twice the supply). The lower MOSFET is easy to drive (11.1V or 0V)
Your explaination would have been compatible with a complementary N and P MOSFET driver 🙂
Hope you will understand 🤗
fun to see you here :)
dude this is the most easiest bldc drive theory to understand so far. however i did not get the last part where we need to get the value zero in order to get timing for zero crossing or switching time of mosfet.
Don¡t worry. It's simple. Using sensorless motors you can't know when to switch. So by theory the perfect moment to switch the sequence is the zerco crossing. If you make the sum of the 3 outputs should always obtain the zero crossing value. and when the floting signal corss that value you make the switch. quite easy...
Thank you!
Very good explanation. I am looking forward to try it. This is the first video that I found to explain and shows how to replicate a sensorless back emf based ESC. Very good! Very valuable.
hola señor, soy de la india, tengo quince años y realmente me gustan sus proyectos y también estoy tratando de hacerlos y divertirme haciendo proyectos arduino.
hey nice work. u have worked hard to build it . :)
electronic _artist_ thank you a lot. this kind of comments motivates me. and yes, it was a lot of work. I want to make it smaller and better.
ELECTRONOOBS Amazing! You're incredibly dedicated to your project and I admire that a lot.
May I ask whether you have any use for this in mind? Hoe about building a really high-powered version of this (something I think off-the-shelf ESCs don't offer)?
electronic _artist_ n
I have just recently discovered your channel and must say I am very impressed by the depth and quality of your presentations. I also liked the idea of "beefing up" PCB tracks to handle greater current; I have blown tacks in past both on PCB's and VERO board! The only small criticism is the annoying background "music", totally unnecessary.
Very nice presentation, but you got the MOSFET part a bit wrong. The threshold voltage for MOSFETs are at least 2V (0.7V is a similar parameter of the bipolar transistors) and in power MOSFETs it may be as high as 3V to 4V. To get the IRF3205 going you need a gate-source voltage of at least 4.5V, but its resistance will continue to drop significantly if you give it more voltage. It will drop a lot at 8V and it will continue to drop more even for voltages above 15V.
Now the main problem is that the high MOSFET when ON has a source voltage of about the power supply since it works as a switch with very low voltage drop (11.1V in that case). So the gate voltage needs to be at least 8V or more above that, which is 19V.
Another problem is that despite the fact that the MOSFET is activated by voltage, it has some gate capacitance, and in order to increase the voltage of a capacitor, you need to supply current. The capacitance is of the order of some nF, which looks small, but if you need to load it fast you need a lot of current. For example a 5nF capacitor that needs to be loaded at 10V in 200ns, needs a current of 250mA (for 200ns of course). Faster and/or MOSFETs with higher gate capacity may require current pulses of several Amps.
MOSFET drivers are optimized to supply the high current pulses and the high voltages the transistors require by the logic level signals of an MCU, even above the supply voltage.
Also, using power transistors without heatsink is not a good practice, you downgrade significantly their power handling capability and their reliability.
Really great video! Good visualization of the bldc motor :)
awesome ... I had just bought irf 3205 a few days ago and I was thinking of making an esc myself ... awesome man awesome ...
This is the best explanation I ever see about this topic. Thank you so much for Your help!
This is really one of the best explanations on the web, thank you so much !!!!
ELECTRONOOBS you rock! This is the best ever toutorial I found on ESC. Helped me a lot. Expecting more of such amazing videos.
Thank you very much! I'm so glad to help!
Do you teach electric or digital circuits? You should. Your instruction is very comprehensive and explanations thorough. Thanks
I LUV this newly found Channel! So educational yet enjoyable! 2 Thumbs UP!
This is the first time I understand how an ESC used in remote control cars work.
Your video is extremely well made. It is a really complex subject, and you just kick butt. Well done !!
Excellent piece of work with a comprehensive explanation. Well done!!
This is one of the best tutorials I've seen for this sort of thing. I love you.
Also, I've learned you scheme and photo of final device and there is deference with items list:
1. Two MOSFET IRF3205 transistors - why two if you used 6 ?
5. Ten 0,1uF 0805 size capacitor (pack-100: 1€) LINK eBay - found 7 on your sheme
6. Six 22uF capacitor (pack-10: 1€) LINK eBay - where is it on the scheme?
7. Ten 22pF capacitor (pack-100: 1€) LINK eBay - and those too ?
11. Huge 4700uF 16V capacitor (1€) LINK eBay - there is 680uF on scheme, it this the one ?
hi thanks friend there is no videos rather than this on RUclips about esc
Thank you very much!
dude just take this huge like from me and if u can make ur videos with no music it will be the best thing ever
Very Clear with all details i really love your channel, Thanks for using your time to help others.
Amazing talent , extremely best explanation strongly motivates me to pursue my 36pole motor project, I have a 100Vdss , 3.0mega ohms , 180a, N channel Power MOSFET
can you advice what is the best mosfet driver I will use?
Sean Gonzales did you find one? Microchip has a few:4427 for example.
En cinco palabras IM PRE SIO NAN TE.
Excelente video. Super currado. Eres un genio. Viva el Talento! Y encima compartido! Buahgg! Muchas gracias!
looking forward to the hall sensored version tutorial bro, thanks for sharing
I am so impressed with your talent did follow your build for esc controller. A follow your code with back emf....But a have problem the potentiometer is not controlling the speed ,but you could see it in the serial monitor its working if you could help me this thanks
.
thanks for explanation it is the best video on bldc on RUclips
Best video on RUclips about that.
OMG thank you. I have been looking for resources on this subject for 4 months!
steevethebeeve I'm glad, thank you!
Awesome video, inspiring too
For DIY project- I’m trying to build gate opener. Few questions, if you could answer please;
1-which motor is enough for 200kg sliding gate.(any link or product specs)
2-forward/reverse bi-direction rotation(how to achieve)
3-anyway to have a motor speed control possible?
I’m willing to do this for months but no guidance is stopping me.
Excellent video and has brought answers to many questions I had about ESCs. Thanks!
Excellent tutorial ! It has cleared my basics about Brushless motors and ESC. Thanks a lot :)
Thank you for this video ,
Very professional and interesting.
keep up the good work, been really helpful
Hello :) I have had much better luck doing very fast sampling of the back-EMF using the comparators, rather than using the ADC. One reason this can help is that noise from PWM switching does not get sampled all at the same time with the ADC, so doing the math without some other form of assistance (synchronous to PWM or when it is expected that there should not be noise) will often miss this and get noise in the zero-crossing detection. This has caused some confusion in various literature that typically says back-EMF sensing can only be done at certain times within the PWM cycle (not true).
After the basic driving, there is quite a lot to do in terms of compatibility with many motors. The back-EMF sampling method above can help a lot, but there are lots of corner cases where the back-EMF from the undriven phase can be "blinded" by other effects such as coil inductance and current flow from the previous commutation step. Often a delay proportional to the last timing is added (a "blanking period") so as to let this current collapse before sampling.
There are also ways to improve the smoothness of starting, to recover from stalls, etc. It is certainly interesting. Nice video!
Thank you very much!
I agree. There is an interesting Application note from Microchip that explains this method you're referring to: ww1.microchip.com/downloads/en/AppNotes/01083a.pdf
Nice job explaining what you learned the hard way!
Dear, I appreciate your video, there is a lot of very useful information and you see a lot of effort put in. The explanation of engine management is superb. Unfortunately the handling of the fets is a fallacy, you could shoot them with any bjt like bc337 .... and put P and N channel complements, so you don't need the driver. I really appreciate your video and am clapping my hands, all your effort. Thank you very much, please do not take my comment as something negative since I only wanted to contribute to your evident effort. without further my humble thanks. Health.
Thanks for all of your informative videos and your website!
Great video and explanation!! :D Kudos for the hard work you've put into building the ESC and teaching us all of it for free. (Y) You deserve a lot more subscribers. Thanks so much :)
Absolutely amazing tutorial... I first discovered you on Instagram and now you have another subscriber on RUclips ;)
thank you. that was a grate totorial . can we make a esc without using microcontrollers?
Nice video, thank you. But I think I might spot an error in the picture between 3:40 to 5:00. For a DC motor with 6 stator poles, it need to switch 12 times to complete one rotation. The switch count is twice as required by the 3 poles motor, while you already shown the 3 poles motor switch 6 times to complete one rotation in 2:00
nice intro! I love AC-DC!
Vth for mosfet is about 5V, where did you get this 0,7V from? That sounds more like bipolar transistor.
Arent your transitors hot? You loose a lot of power on them.
Output of 328 can not get up to 11V when you power it from 11,1V, it's more like 9-10V.
The current that you can drain from AT328(Arduino) is 30mA, not 200mA.
HEY! I'm doing a project on flywheel energy storages, and it basically has a motor/generator , connected with a spining mass.
it would charge up with an ESC, discharge with a full bridge rectifier. but in this case, this thing would need to spin up to an insane speed in order to store an acceptable amount of energy, therefor, just wanna ask you if you are interested.
AWESOME WORK THERE BUDDY!!!
I feel it man, gotta go through this EVERY DAY... my phone is full of datasheets... actually still fun to me :P.
wow..this video is gold...thank u very much..
I'm really happy for your excellent video. May you live a long life Full of gladness and health . May all God's blessings descend upon you. May peace be within you. May your heart be strong. May you find what you're seeking wherever you roam.
Please could you make similar kind of video for stepper motor controller driver? How to design a stepper motor control driver step by step ?
Brushless motors are AC not DC motor. Zero crossing is looking at the undriven phase, not all three, nice video, thanks for sharing.
So good... Watched it a second time now and going to watch it further times, to realy be able to start creating. Until now the best explenation with all infos as easy as possible. Thanks for that and would love to give you the fair credits for that. It is so great to share knowledge. This is the start to a free world. Thank you very much!!! )))
motivate?! Dude you have a nice thing going here, keep it up, make us viewers proud !
Thanks heaps for this. I've seen a few others and found your explanation best.
Thoroughly explained. Thanks a lot ! :)
Very cool video, i am surprised you only have 88k subscribers.
Thanks bro, the explanation is really nice. It's really helpful for me to make my own esc.
Hi, I have a question. In your circuit you use 2 capacitors at the input of the IR2301. I know those capacitors have the function to stabilize the voltage, right?
But how do you calculate the values of the capacitor? And do you place them at random points or only at the input/output?
This is what I always wonder when I see bigger schematics with random capacitors and inductors in it.
Those values are given by the manufacturer in the basic circuit diagram. See the datasheet of the drivers and you'll have the values. Those values are calculate after tousands of tests of delay time etc... Keep up!
Nice explanation!
Good job!
I've learned a lot from it!
Thank You!
WOW it was amazing to learn how it works ! Will help a lot now that i am building a drone!
Thanks!!!
its great and working with a little noise.
hey brother u described in a very lucid manner...thanks for a such quality project...once again thanks a lot!!
I'm glad to hear that!
Big thanks for your help in my electric longboard project ;)
Good explanation....despate I'm Algerian and my English is not verry well, but I have anderstand... thank you verry much.
Wow! you did a great job. A lot of hard work and persistence! Thanks for sharing- I learned a lot :)
Thank you very much!
N-Ch Mosfet can do conduce voltage of Drain to Sourse "" D to S "" ??? The mosget "N-Ch" can work as NPN Transistor ??
very nice video and i love the pcb layout and the design! i would love to see one built for rc boat !
Bravo! Well done. Now I am looking forward to seeing you make a smaller version and providing more amps. Good Job on your hard work.
Fantastic, even like the xylophone music...
Very awesome video mate. Clear, extensive. Very good work!
The best video on the topic ! thank you a lot !
Thanks for this video. Just what I was lookingt for. You've just saved me a couple of months work. :-)
This is a great video!!!! I will try to make am ESC of my own from your instructions !!! Thanks!!!!
Hello, I have a question. You have 6 mosfets so you need 6 pwm as you used in the code. Lets assume that you can not the signal and you will need 3 pwm pins. Now the question is, why with a bought ECS you have to use only one pwm signal? What is different in that construction. Thank you and great video
this was so good and helpful i didn't mind listening to your English... Great Vid !!!
really nice design! 👍
bastler420 thank you :) it was a long and interesting project :)
I think the first animation at 3:00 is incorrect. It is also different that the other at 5:18. In the first animation the north and south poles are 'overtaking' each other, the red and blue poles swap. In the second animation the red pole is always in front of the blue pole.