+Tkj Tkj na. I'm a RC hobbyist so I understand this. One benefit is you can seal it off and waterproof it, another you can maintain easily, also they use 2 positives and 1 negative in the motor for increased magnetism, and therefore increased RPM
Excellent video. I've looked all over for a video that can easily explain the difference between brushed and brushless motors, and you have done so perfectly. It makes perfect sense now! Thank you!
Excellent video! I was writing an article about a controller upgrade for an e-bike with a brushless hub motor, and this is exactly what I was looking for. Unfortunately, it seems the timing is off on the controller I'm using and the coils are energized too long, causing the motor to fight itself and drawing high power at higher RPM. Sort of like a relay race where the runner passing the baton won't let go soon enough! Thanks again for the video.
@Altema22 Sir/Madam, please guide me on this project. I'm a grade 10 Indian student who is trying to electrify my MTB. My design allows me to use gears while running on E energy. I have no idea about the circuits. I need to know what kind of a controller will I need to run the hub motor? If I'm using a DC motor, what motor i.e. what power rating should it have? Thanking you in anticipation. 28/07/2022.
DC = Direct Current BLDC = Brushless DC Motor 3 phase = 3 different conductors to create different magnetic fields Hall sensor = a sensor that changes voltage based on magnetic forces
@@CasamTheAnimator Heh, seeing your reply was very gratifying since I'm pretty new to electrical application theory and suspected the comment you replied to was inaccurate, yet lack that firm foundation -> confidence I require to refute pretty much any inaccurate statements, even on YT comment threads! Lol, I don't give 2 craps either way though; I just enjoyed knowing I applied something I learned via critical-thinking without straining my neurons & did so pretty reflexively for that matter...
Yeah. It produces alternating poles at each coil so it's basically AC. The only difference is it runs on a DC power supply. So it's "rectified" twice, from AC, to DC, back to "AC".
@@LoganT547 But the DC Motor has an ECU/ESC to 1) make the phases and 2) control the motor more precisely so it doesn’t get stuck in the middle of operation. ElectroBOOM has made a video trying to see rotating magnetic fields using a sheet of magnetic paper and also using LEDs. Anyways, he ran a BLDC motor using Three-Phase AC but he said it required commutation otherwise it will just get stuck and vibrate between two angles.
Very useful information. I'm trying to learn more about tattoo machine motors and their differences. Most rotary tattoo machines are using "brushles" or "coreless" motors. This video helped explain exactly what that means.
just to say, your channel is great. It helps a lot to quite understand how this components work, not just to understand but to visualise them. Great work and keep it up. (y)
Each coil is energized with alternating polarity. That makes this an AC motor (specifically a synchronous permanent magnet AC motor), despite the very common and nonsensical use of the term "brushless DC motor". The excitation is crudely stepped, rather than changing in smooth sinusoidal form, but it's still AC.
BLDC name comes from the fact that you use DC voltage to power a pulse modulator which provides a control signal to ESC which provides a three-phase signal for the motor. So, looking at it on start only - that's DC. But at the end - that's three-phase.
@@danek_hren Every AC motor powered from a DC source has DC suppled to an inverter which provides AC power to the motor... so they're all AC motors. Only a motor which incorporates commutation into the motor (a motor with brushes and a commutator) is a "DC motor".
2Awesome my mom has an electric mixer with a brush motor, but it has been running reliably for a very long time, and the brushes look they could go another decade. (I had to take it apart, but that's another story)
Great video! One question: When you have everything connected, do you leave the third coil floating, or what way to you make sure, which way the current runs?
Nope, you have 3 wires, 1 per phase you will have a set of mosfets that will allow you to decide which coil gets the higher potential and which one has the lower (or ground), and that's it... the current will flow from high to low.
Dozens.. Oooh.. I'm kidding. It was extremely well put together and I'm sharing in with no one because lets face it. .01% of people could give two shits about this motor design.. All they care is when they push a button it works extremely well.
This intro is incomplete. Most BLDCs used in drones for example are the "sensorless" type motors where the rotor position is sensed using back-EMF from the already spinning rotor.
These Electronically controlled motors have shown up in all applications these days .First thing I`ve disassembled that has these motors in was a VCR that drove the capstan and the spinning head that was in 1987 then seen them in computer fans like the one you shown If hooked up to 60 HZ ac the 2 pole unit works as a synchronous motor running at 3600 RPM as in a plug in electric clock
Animation isn't°exactly correct. The angle between rotor and stator flux should be keep in range 60-120°. Animation shows that angle is in range 90-180° which cause high torque ripple and low efficient motor operation.
MrLovasivan At 4:30 I disagree with the blue indicating arrows on upper or left section of both A & B. I must be misunderstanding what is being indicated. Help? Thanks. (I'm taking notes & duplicating the drawings, but I don't understand the coil connections at this point. Maybe if I smack it around in my mind a bit I'll see it. ? ...)
I don't see the connection very well too, but I can say that there are 3 couples of coils, so 1 is connected to another one. Two pairs of coils are connected such that the current goes through a first pair, then another! I don't know if I answer your question , but that's what I understood
brilliant tutorial...amazing work ...and good example of em warp...but ismt there a maximum speed limit based on coppers ability to hold charge...so another metal can use higher charge or current or both...it like we are going from material over knowledge, to knowledge over material, to then material over knowledge..
Negative it would be more powerful if you used more wire in the windings. The speed is controlled by the electronic speed control device (esc), the motor can not go fast or slow without the esc however it can be potentially more powerful.
František Němeček yeah it is really a dc motor. it has to have a controller to alternate the current to the correct coils to make it work. it is not an ac current.
9 лет назад+5
***** What the electronic controller does with the DC power is exactly the transformation to AC - no matter the AC is not sinus, but rectangular. And even better: It is not jus single rectangle -+-+-, of two ALTERNING states (of a single phase-wire), but in fact three states" +0-0+0-0... So what it makes is in fact a simple rectangular aproximation to the sinus shape. Just look on the charts within the video: It makes its own AC phases to power up the motor and to create the rotating magnetic field. Just the 3-phases wiring as usual from powerplants. en.wikipedia.org/wiki/Power_inverter#Modified_sine_wave
because if the motor without driver. it will useless. so you can image the brushless motor and driver is 1 part. and the power for it is DC.beside, the Ideal for bldc is brushed dc motor.so...yeah. if you thinking about you can put the 3 phase ac to it and it still run. yes if you look this side the motor will call "PMSM". 2 of them are correct for this one.they are not the same but really hard to separate them.sorry if i wrong english too much.haha
Nguyễn Hoàng Anh Vũ I think there is no difference between what kind of power you provide BEFORE the inverter. Inverter produces AC. And PMSM will not work without a controller and hall sensors as well! So what’s the difference between PMSM and BLDC? BLDC can also work on sinusoidal AC. What’s the difference then?
THANK YOU VERY MUCH FOR SHARING THIS VIDEO. DAY BY DAY USE OF HUB MOTORS ARE INCREASING AS PRODUCTION OF ELECTRIC VEHICLE Speciall ELECTRIC SCOOTERS are becoming as a daily commuter medium.
A current that is shifting is not a DC current. Its electrics 101.... A brushless DC motor is not a DC motor at all, its AC motor that uses a inverter. There is not really a need for a sensor, even that a lot of motors have it. Running on dead rekening work quite well, at least in the medium RPM levels.
A brushed DC motor also switches the current around in the coils. So they are AC motors, right? Sorry, but you have no idea what you are talking about.
9 years ago this came out and I just found it and finally recently heard about brushless motors. Thank you. Now I am an educated idiot about this and have forgotten the entire video as I finish writing this comment. Thanks for the instructions on how to make a cheese pizza with or without pepperoni. I am hungry now for my rotating pizza. 🙄🙄🙄🙄
Hola Argenis, se sigue llamando a este extraño motor , motor CC? Leí todos los comentarios y sigo confundido. Contame que sabes. Saludos desde Asunción, py.
Isnt this what powered the electricity for ourspark plugs, lights and dash in our 50 cc bikes when we were kids ? I had an Aprilia AF1 and i remember having this connected on one end of the crankshaft.
In taking a look at the design of the brushless motor along with the alternating current electric generator, how did we not come up with the concept of using internal magnets to push or pull the magnets in the brushless motor or A/C generator to create electricity instead of just using electricity.
So Brushless DC motors belong to the Synchronous family? As I understood: There is no slip, just a small delay in the position of the magnetic fields (small misalignment)...thanks for any clarification on this. Great work!
U ARE THE ONLY DUDE WHO CAN EXPLAIN THIS STUFF WITHOUT SCREWING ME UP THANKS U SAVE LIVES!!
Thanks for unbiasedly explain this. Everywhere else I looked were talking about RC vehicles.
That is because these motors are extremely popular in rc cars and quadcopters, as they are much more powerful than their brushed counterparts.
+RC Central Is that because brushes add weight ? making power / weight smaller ?
+Tkj Tkj na. I'm a RC hobbyist so I understand this. One benefit is you can seal it off and waterproof it, another you can maintain easily, also they use 2 positives and 1 negative in the motor for increased magnetism, and therefore increased RPM
if it breaks, its likely the bell that needs to be replaced (the part with the permanent magnets) so you don't have to throw away the whole motor
PABLO ARVE
Excellent video. I've looked all over for a video that can easily explain the difference between brushed and brushless motors, and you have done so perfectly. It makes perfect sense now! Thank you!
Excellent video! I was writing an article about a controller upgrade for an e-bike with a brushless hub motor, and this is exactly what I was looking for. Unfortunately, it seems the timing is off on the controller I'm using and the coils are energized too long, causing the motor to fight itself and drawing high power at higher RPM. Sort of like a relay race where the runner passing the baton won't let go soon enough! Thanks again for the video.
I could not understand how bldc is dc powered drive motor?.... while the inverter make dc supply changes to ac please explain
@Altema22 Sir/Madam, please guide me on this project. I'm a grade 10 Indian student who is trying to electrify my MTB. My design allows me to use gears while running on E energy. I have no idea about the circuits. I need to know what kind of a controller will I need to run the hub motor?
If I'm using a DC motor, what motor i.e. what power rating should it have?
Thanking you in anticipation.
28/07/2022.
Amazing explanation and animation at the same time. The optimum way of teaching.
0:21 DC, 1:15 BLDC, 2:35 3-phase, 4:07 hall SensorThanks.
DC = Direct Current
BLDC = Brushless DC Motor
3 phase = 3 different conductors to create different magnetic fields
Hall sensor = a sensor that changes voltage based on magnetic forces
@@borisgraell Exactly
Thank you for clarifying the video; you did a better job than the creators in explaining it...
2:35 bldc will do the same thing controller will control it instead of 3 phase electricity.
as i 've completed my third year in electrical engineering studying machines i never got this like now, big thanks.
Brilliant work guys...I loved each electrical and mechanical videos you made...
thank you and keep up your excellent work.
This is the first RUclips on brushless DC motors that I have understood.
I *did* have a nice introduction on the working of BLDC motors. Thank *you*! ;)
best explanation - short, clear and simple. Saw about half a dozen other videos that got me more confused and took half hour +
So technically a BLDC is a Three-Phase AC Motor. And a Three-Phase AC Motor is a continuously rotating Stepper Motor.
@@CasamTheAnimator Heh, seeing your reply was very gratifying since I'm pretty new to electrical application theory and suspected the comment you replied to was inaccurate, yet lack that firm foundation -> confidence I require to refute pretty much any inaccurate statements, even on YT comment threads! Lol, I don't give 2 craps either way though; I just enjoyed knowing I applied something I learned via critical-thinking without straining my neurons & did so pretty reflexively for that matter...
Yeah. It produces alternating poles at each coil so it's basically AC. The only difference is it runs on a DC power supply. So it's "rectified" twice, from AC, to DC, back to "AC".
This is true, but you can run BLDC motors on 3-phase AC too. The pulsed DC basically emulates a 3-phase AC waveform, but at a much higher frequency.
@@LoganT547 But the DC Motor has an ECU/ESC to 1) make the phases and 2) control the motor more precisely so it doesn’t get stuck in the middle of operation.
ElectroBOOM has made a video trying to see rotating magnetic fields using a sheet of magnetic paper and also using LEDs.
Anyways, he ran a BLDC motor using Three-Phase AC but he said it required commutation otherwise it will just get stuck and vibrate between two angles.
Yes but no, because ac motor does not require a magnet and works on a slightly different law and the design is also different
Very useful information. I'm trying to learn more about tattoo machine motors and their differences. Most rotary tattoo machines are using "brushles" or "coreless" motors. This video helped explain exactly what that means.
just to say, your channel is great. It helps a lot to quite understand how this components work, not just to understand but to visualise them. Great work and keep it up. (y)
Thanks for the video! I thought I knew how they worked, but turns out I only knew part of it
Girls: I want to buy the new Brushless hair dryer.
Boys: searching youtube on how it works
Wow! Thank you so much for explaining this because I could not understand the actual mechanism
Each coil is energized with alternating polarity. That makes this an AC motor (specifically a synchronous permanent magnet AC motor), despite the very common and nonsensical use of the term "brushless DC motor". The excitation is crudely stepped, rather than changing in smooth sinusoidal form, but it's still AC.
BLDC name comes from the fact that you use DC voltage to power a pulse modulator which provides a control signal to ESC which provides a three-phase signal for the motor. So, looking at it on start only - that's DC. But at the end - that's three-phase.
@@danek_hren Every AC motor powered from a DC source has DC suppled to an inverter which provides AC power to the motor... so they're all AC motors. Only a motor which incorporates commutation into the motor (a motor with brushes and a commutator) is a "DC motor".
@@brianb-p6586 1. Do you know that we have AC power in homes?
2. Bruh. Heard of brushed AC motors used in washing machines?
@danek_hren yes, we have AC power in homes - that's why most motors are AC.
Universal motors are brushed commutated motors - they operate on AC or DC
@@brianb-p6586 sorry, I didn't understand your comment correctly. You were right
Thanks for your video it helps my channel grow and push me make more, Good Job
thank you sir !!!
Eh bang cgit
Bang sigit
Ai ada bang cgit
Nicely and neetly explained not too technical well done.
brush motors shouldn't be used where reliability or efficiency is important aka: consumer electronics...
2Awesome my mom has an electric mixer with a brush motor, but it has been running reliably for a very long time, and the brushes look they could go another decade. (I had to take it apart, but that's another story)
Brodo Faggins Nh
@growlingbehemoth Sorry, but that's not how the world works
@growlingbehemoth To think that planned obsolescence is real is to doubt the existence of competition in the market, which is quite unbelievable.
@@matthewprather189 Yes, it does.
Really enjoyed, used to build advanced bloc motors for small research company
Very well explained.
In a way, one coil is a carrot in front of the donkey's nose and another coil is a stick up the donkey's asymptote.
You can't say, "asymptote."
@@stevejordan7275
You don't say... humpf...
Anyway I didn't, I rote it, trying to be punny.
Finally the video I've been looking for I understand the basics now
Great video! One question: When you have everything connected, do you leave the third coil floating, or what way to you make sure, which way the current runs?
Nope, you have 3 wires, 1 per phase you will have a set of mosfets that will allow you to decide which coil gets the higher potential and which one has the lower (or ground), and that's it... the current will flow from high to low.
4:36 everytime I heard Lesics's gratitude at the ending:
"No, I thank YOU"
Why have we not used these sooner? What a simple idea. WOW!
plz release videos on theorems too like hopkin's back-to back,field test e.t.c., and it,s really a good job in releasing videos like these..
Excellent. Very comprehensive explanation
Great video, well explained.
I'd like to add machines dont know or decide anything, they function, like.... a machine.
I live these informative videos! Thank you Learn Engineering!
Awesome first introduction. Thank you
So instead of brush, electronics is doing the switching.
Simple!!!
Now do a video on the Hall Effect sensor.
I easily understood the working principle of brushless dc motor
Superb explanation. I was thinking this from my childhood. But I couldn't make it
Cool, sharing on FB for my dozens of fans to see...
+toodle171 Thank you !
Dozens.. Oooh.. I'm kidding. It was extremely well put together and I'm sharing in with no one because lets face it. .01% of people could give two shits about this motor design.. All they care is when they push a button it works extremely well.
Pun intended?
toodle171
NvgfrrFCFCFFCIv utoodle171 M cc
Simple yet beautiful explanation. You made my day !
Thanks for producing such videos
Thank you for sharing knowledge
شكرا على المعلومات القيمة
Thanks information. my name is sivakumar from india
Can u upload a video on working of inverter?
Thank you friend. Simple and efficient explanation.
3:49 Whien? XD
When to energize coil A B C depending on the position of the rotor
Thank you so much for this clear explanation!
This intro is incomplete. Most BLDCs used in drones for example are the "sensorless" type motors where the rotor position is sensed using back-EMF from the already spinning rotor.
Really?
That was my first guess as to how the driver knew the rotor position. But how does it bootstrap when it's not running?
Thans a lot ! Excellent explanation, video and audio.
These Electronically controlled motors have shown up in all applications
these days .First thing I`ve disassembled that has these motors in was a
VCR that drove the capstan and the spinning head that was in 1987 then seen them in computer fans like the one you shown
If hooked up to 60 HZ ac the 2 pole unit works as a synchronous motor running at 3600 RPM as in a plug in electric clock
your explanation is superb
Animation isn't°exactly correct. The angle between rotor and stator flux should be keep in range 60-120°. Animation shows that angle is in range 90-180° which cause high torque ripple and low efficient motor operation.
MrLovasivan At 4:30 I disagree with the blue indicating arrows on upper or left section of both A & B. I must be misunderstanding what is being indicated. Help? Thanks. (I'm taking notes & duplicating the drawings, but I don't understand the coil connections at this point. Maybe if I smack it around in my mind a bit I'll see it. ? ...)
I don't see the connection very well too, but I can say that there are 3 couples of coils, so 1 is connected to another one.
Two pairs of coils are connected such that the current goes through a first pair, then another!
I don't know if I answer your question , but that's what I understood
@Sinawo Nomandela well it is not an english class bro.
@Sinawo Nomandela Are you a grammar nazi ? :-) Are you here only to teach english?
Simple, yet engineering genius. Still like old Brushy too😊🇺🇸❤👍🙏
Please, may I ask you what drawing program have you used to draw the graphycal animations?
thank you man, your videos become easy to show how it really work. Once again thank you
brilliant tutorial...amazing work ...and good example of em warp...but ismt there a maximum speed limit based on coppers ability to hold charge...so another metal can use higher charge or current or both...it like we are going from material over knowledge, to knowledge over material, to then material over knowledge..
Would be faster if you keep adding more magnets
Negative it would be more powerful if you used more wire in the windings. The speed is controlled by the electronic speed control device (esc), the motor can not go fast or slow without the esc however it can be potentially more powerful.
More magnets will interfere with the coils
It's always neat when something you thought of -through thinking alone -turns out to be exactly what you thought!
It looks like a 3 phase induction motor, just phased differently and has a permanent magnet rotor.
leerman22 😉😁😋😃😎😋🙂☺😙😑😑☺🙂😎🤗😍😍😍😍😍😎
It's not it's a modified version of permanent magnet synchronous motor
Thanks you from Cambodia
So BLDC motor is a holy grail of motor technology.
Not really DC, but rather just a synchronous motor, with permanent rotor. (rotor-stator, does not matter)
František Němeček yeah it is really a dc motor. it has to have a controller to alternate the current to the correct coils to make it work. it is not an ac current.
***** What the electronic controller does with the DC power is exactly the transformation to AC - no matter the AC is not sinus, but rectangular.
And even better: It is not jus single rectangle -+-+-, of two ALTERNING states (of a single phase-wire), but in fact three states" +0-0+0-0... So what it makes is in fact a simple rectangular aproximation to the sinus shape.
Just look on the charts within the video: It makes its own AC phases to power up the motor and to create the rotating magnetic field. Just the 3-phases wiring as usual from powerplants.
en.wikipedia.org/wiki/Power_inverter#Modified_sine_wave
because if the motor without driver. it will useless. so you can image the brushless motor and driver is 1 part. and the power for it is DC.beside, the Ideal for bldc is brushed dc motor.so...yeah. if you thinking about you can put the 3 phase ac to it and it still run. yes if you look this side the motor will call "PMSM". 2 of them are correct for this one.they are not the same but really hard to separate them.sorry if i wrong english too much.haha
Fran..are you a nat strainer?
Nguyễn Hoàng Anh Vũ I think there is no difference between what kind of power you provide BEFORE the inverter. Inverter produces AC. And PMSM will not work without a controller and hall sensors as well! So what’s the difference between PMSM and BLDC? BLDC can also work on sinusoidal AC. What’s the difference then?
These motors are amazing. The little golf ball size motor I have in my Traxxas Slash model car can deliver 1 horsepower (750 watts).
Can't find any information on the site mention in the video about BLDC motors. I needed more information about their circuit,
aqswaflo Please check our website after one week. We will add a webpage version of it.
Learn Engineering What about nanotechnology and engineering?
It will take a lot of time to make a video on nano technology.
Imagine graphene or carbon nanotube motors.Learn Engineering
It will be interesting to see mechanical engineering taking advantage of nanomaterials.Learn Engineering
THANK YOU VERY MUCH FOR SHARING THIS VIDEO. DAY BY DAY USE OF HUB MOTORS ARE INCREASING AS PRODUCTION OF ELECTRIC VEHICLE Speciall ELECTRIC SCOOTERS are becoming as a daily commuter medium.
A current that is shifting is not a DC current. Its electrics 101.... A brushless DC motor is not a DC motor at all, its AC motor that uses a inverter.
There is not really a need for a sensor, even that a lot of motors have it. Running on dead rekening work quite well, at least in the medium RPM levels.
I agree this is defiantly three phase AC motor
A brushed DC motor also switches the current around in the coils. So they are AC motors, right?
Sorry, but you have no idea what you are talking about.
Yeah, a brushed motor uses a commutator, so even though it is internally AC, it is supplied by a DC voltage.
brushless motors are also supplied direct current
Where can I take electrics 101 sounds like a pretty useful and enlightening class?
9 years ago this came out and I just found it and finally recently heard about brushless motors. Thank you. Now I am an educated idiot about this and have forgotten the entire video as I finish writing this comment. Thanks for the instructions on how to make a cheese pizza with or without pepperoni. I am hungry now for my rotating pizza. 🙄🙄🙄🙄
Great video,all is clear
Now, I need to find out how the electronics control the motor..
Lol that's the hardest part of creating a brushless DC motor
Brushless is a really nice improvement over traditional motor design. Hopefully, the electronic systems are built to last.
With the help of esp we can control the motor speed
The donkey and carrot analogy is hilarious
ربنا يزيدك علم ويهديكم للطريق المستقيم شرح رهيب
Thank you for explanation! really help me
Eppurdra 🤒
Punda
Enna thala
Punda Thala
🤣🤣🤣🤣
I don't get why the current wouldn't flow to the left wire at 3:23 in the video.
wouldn't the current go in both or the two wires? in both directions
Beautifully discrbed
Maybe i shouldnt have done so many bongs when i was younger, i am baffled
Lost the plot at 1:16 will have to go back to collage.
Excelente information, thanks a lot, From Venezuela. 🇻🇪👏👏👏
Excellent
Hola Argenis, se sigue llamando a este extraño motor , motor CC? Leí todos los comentarios y sigo confundido. Contame que sabes. Saludos desde Asunción, py.
excellent explanation ... thanks
thank you so much, your videos always save me many time! I think it works the same for everyone else to. Nice work!
Isnt this what powered the electricity for ourspark plugs, lights and dash in our 50 cc bikes when we were kids ? I had an Aprilia AF1 and i remember having this connected on one end of the crankshaft.
Thanks for the good explanation. One Question, how can you increase the motor Speed?
Excellent presentation, and contained quite a few details I didn't know. Thank you.
Thanks so much! Best explanation of this concept I’ve seen yet!!!
Nice explanation. I couldn't figure out how brushless DC motors work and now I know they are not DC at all just AC motor with fancy drivers.
Excellent video
Amazing video. thank you so much
best video i ever saw
Very helpful, thank you!
Wonderful video.
Good intro for BLDC Motor
Thanks sir your explanation very helpful
Amazing explanation plzz make videos on suspension and its types
Superb explanation
One of the usefull and techincally it is correct video in youtube. Can you make a dynamo presentation like this on AC and DC
In taking a look at the design of the brushless motor along with the alternating current electric generator, how did we not come up with the concept of using internal magnets to push or pull the magnets in the brushless motor or A/C generator to create electricity instead of just using electricity.
very thoroughly explained..thanks
Very good, DIY creation
it was excellent.... good animation and good introducing ... thanks
So Brushless DC motors belong to the Synchronous family? As I understood: There is no slip, just a small delay in the position of the magnetic fields (small misalignment)...thanks for any clarification on this. Great work!
Extremely effectively explained video!! Thank you.
Nice videos.. I like them, they help me learn more