Thanks for unbiasedly explain this. Everywhere else I looked were talking about RC vehicles.

@RCCentralmain

8 жыл бұрын

That is because these motors are extremely popular in rc cars and quadcopters, as they are much more powerful than their brushed counterparts.

@jonandersonmd7994

8 жыл бұрын

+RC Central Is that because brushes add weight ? making power / weight smaller ?

@GenesisRC

8 жыл бұрын

+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

@___echo___

6 жыл бұрын

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

@BBbit1200

5 жыл бұрын

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!

Awesome! You guys rock! Thanks for making this and sharing it with the world on KZread! Really helps me study my EE.

I love the way we make the new thing the best thing ever. I've got a 47 year old Kirby vacuum on my work bench, and while its commutator is a bit worn, it still runs great, plenty of power, no sparking. You can tell its been worked hard. It is beat up, chipped, and worn out, but the motor is still fine. This is the second 1970 Kirby Classic Omega I've had in six months that is worked to death, but still running. Meantime, I've also got my second six year old Rainbow E2 sitting on the floor here with a motor that is toast after having a blade come loose in the cord, and fry the circuit board. Nevertheless, "a carbon brush motor should never be used where long life and reliability is a necessity." It is a lot easier and cheaper to replace carbon brushes than it is to replace brushless motors and circuit boards. In fact, replacing the entire motor is cheaper on the carbon brush motor.

U ARE THE ONLY DUDE WHO CAN EXPLAIN THIS STUFF WITHOUT SCREWING ME UP THANKS U SAVE LIVES!!

Amazing explanation and animation at the same time. The optimum way of teaching.

Brilliant work guys...I loved each electrical and mechanical videos you made... thank you and keep up your excellent work.

best explanation - short, clear and simple. Saw about half a dozen other videos that got me more confused and took half hour +

I *did* have a nice introduction on the working of BLDC motors. Thank *you*! ;)

I live these informative videos! Thank you Learn Engineering!

Finally a well made video explaining these motors. Thank you!

Thanks so much! Best explanation of this concept I’ve seen yet!!!

Thank you. I have been wondering about this for a while.

@HR-pz7ts

3 жыл бұрын

It now makes sense why it has three input wires

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 producing such videos that enable a layman to understand the basics.

Finally the video I've been looking for I understand the basics now

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.

@rafiullah2062

2 жыл бұрын

I could not understand how bldc is dc powered drive motor?.... while the inverter make dc supply changes to ac please explain

@muhammadrifayis8746

Жыл бұрын

@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.

Thank you for sharing knowledge شكرا على المعلومات القيمة

Simple yet beautiful explanation. You made my day !

Extremely effectively explained video!! Thank you.

So technically a BLDC is a Three-Phase AC Motor. And a Three-Phase AC Motor is a continuously rotating Stepper Motor.

@kurtilingus

2 жыл бұрын

@@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...

@grantmccoy6739

2 жыл бұрын

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

2 жыл бұрын

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.

@suspense_comix3237

2 жыл бұрын

@@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.

@SC-kd5ln

Жыл бұрын

Yes but no, because ac motor does not require a magnet and works on a slightly different law and the design is also different

Great video, well explained. I'd like to add machines dont know or decide anything, they function, like.... a machine.

ขอบคุณมาก เพิ่งจะเข้าใจการทำงานของ BL motor.

thank you man, your videos become easy to show how it really work. Once again thank you

0:21 DC, 1:15 BLDC, 2:35 3-phase, 4:07 hall SensorThanks.

@jiajerho4815

6 жыл бұрын

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

@criatiancamilodiazbarco8512

4 жыл бұрын

@@borisgraell Exactly

@maskedmarvyl4774

4 жыл бұрын

Thank you for clarifying the video; you did a better job than the creators in explaining it...

@dkdanis1340

2 жыл бұрын

2:35 bldc will do the same thing controller will control it instead of 3 phase electricity.

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?

@gzitterspiller

2 жыл бұрын

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.

Thanks for another class my teacher.Thank you for sharing your time and knowledge ...

Brilliant!... Thank you so much for putting such a smart video on line....

thank you sir !!!

@carladuazy2789

3 жыл бұрын

Eh bang cgit

@Fylnnn

3 жыл бұрын

Bang sigit

@untalaut9888

3 жыл бұрын

Ai ada bang cgit

Please, may I ask you what drawing program have you used to draw the graphycal animations?

Great educational video. And people wonder why I spend so much time on youtube when there's great content like this.

thank you so much, your videos always save me many time! I think it works the same for everyone else to. Nice work!

Cool! Now I understand how my drone motors turn its propellers. 😃

One thing not mentioned, the multi phase current drive for the stator coils as well as critical control and sensing functions are all done by a single fly sized integrated circuit, which is a true marvel of electronic miniaturization itself.

@TheUtuber999

5 жыл бұрын

Do you know how many transistors are packed into a typical CPU?

@Benthorpy

2 жыл бұрын

@@TheUtuber999 Why is that relevant?

@organicfarm5524

Жыл бұрын

@@Benthorpy because at the end any microchip integrated circuit which processes any thing usually consists of anywhere between thousands to millions or even few billions of very very small sized transistors.

@CreatorWorkshop558

Жыл бұрын

​@@organicfarm5524 ph pu

Excellent presentation, and contained quite a few details I didn't know. Thank you.

Excellent explanation!!! Thanks for taking effort.

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..

Girls: I want to buy the new Brushless hair dryer. Boys: searching youtube on how it works

it is well explained in a simple way ! I have been searching for months something that explains it simply , and it is the only video that is clear and simple to understand, just knowing the basic stuff (opposite poles attract, coils crossed by an electric current create a magnetic field, and just it i think ?)

Thank you! Good explanation,easy to understand .

Cool, sharing on FB for my dozens of fans to see...

@Lesics

8 жыл бұрын

+toodle171 Thank you !

@flaplaya

7 жыл бұрын

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.

@BandanaDrummer95

7 жыл бұрын

Pun intended?

@alanlee02

7 жыл бұрын

toodle171

@samanthasedivec8195

7 жыл бұрын

NvgfrrFCFCFFCIv utoodle171 M cc

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.

@stevejordan7275

3 жыл бұрын

You can't say, "asymptote."

@facitenonvictimarum174

3 жыл бұрын

@@stevejordan7275 You don't say... humpf... Anyway I didn't, I rote it, trying to be punny.

very easy to understand.. thank you for you give the important information for us.

thank you so much on this beautiful simulation. you make my all simster easy!!!! realy love you guys!!!!

Can u upload a video on working of inverter?

I easily understood the working principle of brushless dc motor

Thanks for the clear animation.

Sensacional! Simplesmente incrível explicação!

brush motors shouldn't be used where reliability or efficiency is important aka: consumer electronics...

@brodofaggins6078

7 жыл бұрын

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)

@j.zsyd11

7 жыл бұрын

Brodo Faggins Nh

@matthewprather189

5 жыл бұрын

@growlingbehemoth Sorry, but that's not how the world works

@valwold3567

5 жыл бұрын

@growlingbehemoth To think that planned obsolescence is real is to doubt the existence of competition in the market, which is quite unbelievable.

@solarsynapse

5 жыл бұрын

@@matthewprather189 Yes, it does.

on my oral exam, i told my examinor about the donkey end carrot.... i failed

@JohnJones1987

5 жыл бұрын

Looks like what you want is *just* out of reach NDABEZITHA :(

@zesegatto

5 жыл бұрын

Donkey and carrot seems me more applicable to brushed motor, where the move changes the coil polarity. Brushless need a external agent (like a ESC driver) to change the coil polarity. Change the coil polarity is like move the carrot few ahead. (sorry any mistake. brasilian here, trying to improve my english)

@ViratKohli-jj3wj

5 жыл бұрын

@omkar shinde 😂

@whoisadam944

5 жыл бұрын

It doesn't work when it's your best statement lol

@nigelrafferty2545

5 жыл бұрын

Mmm, who's the donkey? lol

Incredible!! Thank you so much!! God bless you guys!!!

Thanks for this explanation!! I finally got the idea how to make less noisy DC motors xD

So instead of brush, electronics is doing the switching. Simple!!!

I think it's similar to the operation of 3-phase synchronus motors, right ?

@jpgiebl

4 жыл бұрын

3-Phase synchronous motor is a collective term which refers to reluctance motors und 3 phase permanent magnet motors. The later being a synonym for brushless dc.

@simonm1447

4 жыл бұрын

The difference is normal synchronous motors have coils in the rotor (and brushes), while BLDC motors have permanent magnets. BLDC is often used in powerful cordless tools, because with brushed universal motors they tend to get hot at the brushes (because of the low voltage, and high currents) and are inferior when they have to supply much power for a longer time. Normal synchronous motors are often used as generators in power plants, because they can adjust power output by the power put in the rotor coils, and in car alternators (which are technically similar to generators in power plants, only in a much smaller scale).

@hassan_a9

4 жыл бұрын

Here is a simple answer. BLDC is a synchronous motor and the name is derived because of the behavior of the motor which is very similar to a DC motor.

@spreadeducate1448

4 жыл бұрын

Operation is same but in construction it is different bldc is modified form of permanent magnet synchronous motor

amazing video. helped me understand, thanks guys!

Very informative, and clear, thanks sir.

como é o esquema de cores para ligação deste motor ? GFH2G5 ??

Can't find any information on the site mention in the video about BLDC motors. I needed more information about their circuit,

@Lesics

9 жыл бұрын

aqswaflo Please check our website after one week. We will add a webpage version of it.

@depthoffield4744

8 жыл бұрын

Learn Engineering What about nanotechnology and engineering?

@Lesics

8 жыл бұрын

It will take a lot of time to make a video on nano technology.

@depthoffield4744

8 жыл бұрын

Imagine graphene or carbon nanotube motors.Learn Engineering

@depthoffield4744

8 жыл бұрын

It will be interesting to see mechanical engineering taking advantage of nanomaterials.Learn Engineering

Best Explanation. Thank you.

nice tool..... this is quiet important to keep a very good performance in the continuing knowledge.

3:49 Whien? XD

@gillesbkf4315

3 жыл бұрын

When to energize coil A B C depending on the position of the rotor

It looks like a 3 phase induction motor, just phased differently and has a permanent magnet rotor.

@LUISYMCR

7 жыл бұрын

leerman22 😉😁😋😃😎😋🙂☺😙😑😑☺🙂😎🤗😍😍😍😍😍😎

@spreadeducate1448

4 жыл бұрын

It's not it's a modified version of permanent magnet synchronous motor

thank you ,for this awesome video

Really enjoyed, used to build advanced bloc motors for small research company

Does anyone know the software that is used to illustrate this?

@LazaroCarvalhaes

7 жыл бұрын

Asking the real questions.

@NathanChisholm041

7 жыл бұрын

Gort Newton Its Carrara 8

@gortnewton4765

7 жыл бұрын

Carrara 8!! I used Carrara 5.1 for a year and it can't do anything near this quality. Carrara must have changed lots. Thank you for letting me know.

@NathanChisholm041

7 жыл бұрын

Gort Newton Its amazing program i use it alot as..NP

@soumiahassane8246

7 жыл бұрын

looks like he used CREO parametric, we've been using the 3.0 to design similar parts in our engineering class, but I don't know how he put the parts in motion,

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.

@vinceking7878

5 жыл бұрын

Really?

@meepk633

5 жыл бұрын

That was my first guess as to how the driver knew the rotor position. But how does it bootstrap when it's not running?

This is the first KZread on brushless DC motors that I have understood.

Thank you so much for this clear explanation!

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.

@johnlbales2773

7 жыл бұрын

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. ? ...)

@0711floflo

6 жыл бұрын

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

@neerajsaininj1087

5 жыл бұрын

@Sinawo Nomandela well it is not an english class bro.

@ats8291

5 жыл бұрын

@Sinawo Nomandela Are you a grammar nazi ? :-) Are you here only to teach english?

Would be faster if you keep adding more magnets

@BestPlconEarth50

6 жыл бұрын

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.

@shawndickson5809

5 жыл бұрын

More magnets will interfere with the coils

Animation is excellent and very easy to under stand. Nice Job...

honestly when I saw just 4:39 Len video I thought that this will not explain it in detail but it clear my all doubts thanks to creator great work.....

i dont get on what happened on 3:18 why did you put another wire?

@ronbrown8611

7 жыл бұрын

focus on how it is eneriezed. notice the plus and minus signs. this will indicate the current flow and. Also notice there are only 3 wires coming out of the motor. that's why it's called a 3 phase motor. I guess you could have more phases. My knowledge is also extremely low on how they are actually commutated but i would like to learn how it works. Again, its just a way to simplify the energizing of the electromagnet. its easier to enrgize 1 thing and not 2

@imahinasyon9427

6 жыл бұрын

How do you switch the direction of the DC currents to make different polarity in order to achieve this dynamic state?

@vladoovg

6 жыл бұрын

H-Bridge

@clydebaggs7000

6 жыл бұрын

Through transistors they act like little switches.

@artbyrobot1

6 жыл бұрын

@ima hinasyon you can do this with an h-bridge of mosfets to redirect current to the opposite direction using a microcontroller to read the hall effect sensor for timing and send signals triggering the mosfets to do the redirects

excellent explanation ... thanks

I looked for many explanations and this one was best thank you

Wow! Thank you so much for explaining this because I could not understand the actual mechanism

Not really DC, but rather just a synchronous motor, with permanent rotor. (rotor-stator, does not matter)

@jessiehawes5062

9 жыл бұрын

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 жыл бұрын

***** 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

@nguyenhoanganhvu9990

6 жыл бұрын

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

@allenschmitz9644

5 жыл бұрын

Fran..are you a nat strainer?

@user-se2zf7xp6l

5 жыл бұрын

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?

Now, I need to find out how the electronics control the motor..

@SeemsLegal

6 жыл бұрын

Lol that's the hardest part of creating a brushless DC motor

@alonsocambronero5663

5 жыл бұрын

Brushless is a really nice improvement over traditional motor design. Hopefully, the electronic systems are built to last.

@spreadeducate1448

4 жыл бұрын

With the help of esp we can control the motor speed

Excellent. Very comprehensive explanation

Thank you friend. Simple and efficient explanation.

why not use induction motor?

@markolukic8517

6 жыл бұрын

TheTwoFailerLP how would u use induction motor in drone for example?

@clydebaggs7000

6 жыл бұрын

Because it’s dc power. You don’t have to convert power back to Ac. Great little motors for electronics.

@pologamero2648

6 жыл бұрын

marko lukić or in a notebook or PC?

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.

@temodeed

8 жыл бұрын

I agree this is defiantly three phase AC motor

@superdau

6 жыл бұрын

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.

@ryantoomey611

6 жыл бұрын

Yeah, a brushed motor uses a commutator, so even though it is internally AC, it is supplied by a DC voltage.

@BestPlconEarth50

6 жыл бұрын

brushless motors are also supplied direct current

@BestPlconEarth50

6 жыл бұрын

Where can I take electrics 101 sounds like a pretty useful and enlightening class?

thank you that was a big help for me.

Thans a lot ! Excellent explanation, video and audio.

Maybe i shouldnt have done so many bongs when i was younger, i am baffled

@barrygates

4 жыл бұрын

Lost the plot at 1:16 will have to go back to collage.

Eppurdra 🤒

@rajamatthew3996

Жыл бұрын

Punda

@manisarmam.5327

Жыл бұрын

Enna thala

@rajamatthew3996

Жыл бұрын

Punda Thala

@thamizhmani849

Жыл бұрын

🤣🤣🤣🤣

Thanks for your video it helps my channel grow and push me make more, Good Job

Awesome first introduction. Thank you

Just use 3 phase ac to power the coils and you'll get a nice RMF. No need for a controller (inverter). Also, while we're at it, can we stop calling it "bushless dc"? This is clearly an ac motor...

@huseyin.goktas

6 жыл бұрын

It is supplied with dc thus it is a dc motor. If you are a user you don't care how it is work, only power type, and torque, speed characteristics matter.

@pologamero2648

6 жыл бұрын

xoOPhoenixOox its hard put 12V, 3 phase current on a motherboard.

it was excellent.... good animation and good introducing ... thanks

Thank you for explanation! really help me

super very very very interesting thank you for this video actually I have doubts regarding like this stepper motor but I lost all the doubts because of this thank you for making videos all the best you have helped me a lot again I am saying thank you please make this kind of videos more and more your explanation is nice most of the videos I have no explanation so you have explain well and ifeel all understood this if you have any doubt on your video section I will drop it in comment box

very thoroughly explained..thanks

Very very very nice explanation in less time. Thank you sir

Just what i need. Thank you so much for this.

This is such a great video!

as i 've completed my third year in electrical engineering studying machines i never got this like now, big thanks.

Thanks for producing such videos

Very helpful, thank you!

Amazing video. thank you so much