FOC Driver Controller PCB - Slow Brushless Control

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  • Опубликовано: 22 дек 2024

Комментарии • 186

  • @ELECTRONOOBS
    @ELECTRONOOBS  2 года назад +5

    Join my Arduino Course (Spanish): bit.ly/2JY8icE
    My Tools: bit.ly/3uv8bc3
    Help me on Patreon: www.patreon.com/ELECTRONOOBS

    • @christopherleveck6835
      @christopherleveck6835 Год назад +1

      Can you please finish this with the encoder working? I had the pcbs made. I soldered everything up and it all looks fine. But I'm ready to integrate the positioning......

    • @mahershhab3824
      @mahershhab3824 Год назад

      ممكن المساعده بمقابل مادي لو سمحت

  • @power-max
    @power-max 2 года назад +88

    The way this works (open loop) is the rotor basically snaps so that the permanent field from the magnets aligns with the generated magnetic field and in this state there is zero toque despite a high current. It is not efficient. This is simple though, and pretty stable. As you bump the motor out of alignment it naturally wants to snap back, and if you plot the torque vs angle you get a sinusoidal torque and when allowed to rotate freely it will snap to any of the points that cross zero.
    In a real FOC controller, the position is detected and the current in the stator is generated to always be 90 degrees ahead or behind where the rotor is. Since at these points you get the most "bang for your buck" and the most torque for the given current. Assume the controller is working, and always generates a field exactly 90 degrees. When the rotor is where it is supposed to be, the field flux vector stays at 90 degrees but the current is decreased basically to zero so the rotor does not rotate. As the rotor is displaced from where it is supposed to be according to the FOC controller, the magnitude of the flux vector is increased to provide a corrective torque and oppose the offset. A PI controller is what is often used.
    Another small nit-pick detail is that you are providing a VOLTAGE to the coils and not a CURRENT. The magnetic field depends on CURRENT not VOLTAGE. This can very approximately be estimated by understanding the relationship between voltage from the FOC controller, the inductance of the coils, the back EMF that works against the supplied voltage when the motor is rotating, etc. I think this problem is also solved by that same PI loop. Essentially it does technically control the voltage to the phases but due to PI loop action it is the current that is being controlled.
    You used SPWM. Which is OK, it is the most naive way to do it. The maximum phase-to-phase voltage (this is what matters, not phase to neutral) is limited to I think about 86% of the DC supply voltage. It is fine, but you can do better if you throw out the need for phase-neutral voltage needing to be AC sine wave centered at half the DC supply voltage and optimize by maximizing the phase-phase voltage (which does need to be sinusoidal or trapezoidal... a whole other can of worms)
    Finally, the long debate of PMSMs vs BLDCs and the back EMF and how they are supposed to be driven with either trapezoidal SVM or sinusoidal SVM... most motors kinda fall somewhere in between in practice so really it is never going to be a perfect match.

    • @marcobassini3576
      @marcobassini3576 2 года назад +3

      Yes, the video does NOT show FOC, it simply uses a brushless motor as a poor man permanent magnet stepper motor (with 60° per step). Totally misleading title. Of course a true NEMA 17 hybrid stepper motor would perform much better and cost much less.
      And, if driven with FOC, would be also much more efficient than this BLDC motor operated at short circuit current.

    • @08acbest
      @08acbest 2 года назад +2

      Exactly, very misleading title, it is not FOC control

    • @donaldwright2426
      @donaldwright2426 2 года назад +1

      I agree with Power Max. You already have in part, accomplish a FOC, or a very simplified FOC with your ESC projects using the 6-step commutation scheme for a BLDC. Now you need to identify the rotor position (estimator or sensored) to apply a voltage 90° in advance of the rotor position.
      This can only be performed unsign the PARK and CLARK Transformers and in inverse form also. FOC can be performed using SPWM but you loose in voltage, does in current. You are better of with a Space Vector PWM (SVPWM).
      Can't wait to see the rest of your video(s).😉

    • @nin1ten1do
      @nin1ten1do 4 месяца назад

      VESC 4,12 is grabage specialy. never working FOC:. no way to determine coorect POLE numbers etc.. BS:.. BLDC SW carry ebetr than vieder..

  • @didu888able
    @didu888able 2 года назад +26

    Nice video, but for sake of accuracy:
    The described method in this video is basic sinusoidal commutation. On the other hand FOC includes relatively complex current transformations, rotor flux linkage vector calculation, multiple other complex transformations and is a closed loop control scheme.

    • @fakulol0186
      @fakulol0186 2 года назад

      excactly. *commutation

    • @dstvs
      @dstvs 2 года назад +2

      I was about to comment about this too. This not FOC if the algorithm is not using d and q field components

  • @marciogomesdossantos9481
    @marciogomesdossantos9481 2 года назад +3

    Very nice. Great explanation. I watched some videos about it before but i had not understand how this FOC worked. But now i get it. We don't need servo motors for robotics anymore.

  • @stefanguiton
    @stefanguiton 2 года назад +49

    Great work! Could you make a higher current version? It would be super useful, as commercial controllers are quite expensive. This could be used with the SimpleFOC arduino library which is free and easy to use

    • @evanbarnes9984
      @evanbarnes9984 2 года назад +3

      This is EXACTLY what I've been looking for, I'd love to see this integrated with SimpleFOC

    • @moses5407
      @moses5407 2 года назад

      Ditto on this request for simplefoc and high power compatible design!

    • @faultboy
      @faultboy 8 месяцев назад

      @Electronoobs Is anything like this planned? :)

  • @leonk.b.fernandes244
    @leonk.b.fernandes244 Год назад +3

    To make it work in closed loop, you must consider the number of poles of the motor. I used svpwm in a 4-pole bldc motor once and got a behavior similar to yours, where the rotor is locked in specific positions. In my case, I noticed that the motor was always stuck in 4 specific positions, so I soon made the association with the number of poles of the motor. That said, I could observe that a full cycle of the svpwm was equivalent to only a quarter of the full rotation of the rotor. To solve this problem I made this consideration and the motor ran in closed loop.
    Consider the number of poles in your motor and do the math, one full rotation of the motor should be equivalent to the number of poles * spwm cycle.

  • @mvadu
    @mvadu 2 года назад

    This is the best intro to FOC I have seen.. Thank you..

    • @candas1
      @candas1 2 года назад +2

      Because it's not FOC lol

  • @fbtlwns07
    @fbtlwns07 Год назад

    Thanks for knowledge!

  • @simplecad7462
    @simplecad7462 2 года назад +6

    Cool project! If you add encoder support, you could change code to create magnetic field 90 degrees from rotor magnetic field. It will apply magnetic field in Q Axis and creates much better torque and higher efficiency. Currently motor is using only D Axis, D Axis is usually used only for field weakening and it doesn't make torque.

  • @Bondarev-Y
    @Bondarev-Y 2 года назад +1

    a great example. Can I change the direction of rotation of the rotor in speed mode?

  • @sandeepbabbu1447
    @sandeepbabbu1447 2 года назад +1

    Hello sir thanks for your information and many times i don't understand how bldc motor in gimbals and robot dogs etc get such presize angle control and speed,but now i able to understand how they work.
    I am from india and i am studying electronics and communication engineering in govt polytechnic and I am very much interested in electronics.
    Thanks for your information and teaching us in practical way and all the best for your future projects .

    • @johnfarris6152
      @johnfarris6152 2 года назад

      I don't know either but I know one magnetic field doesn't overlap another.

  • @ziad_jkhan
    @ziad_jkhan 2 года назад

    Thanks for such a clear demystificaion of FOC while I just sit and watch

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад +1

      Thank you! There is still a lot more about FOC for future episodes :)

  • @papablopapapablo8123
    @papablopapapablo8123 2 года назад

    Muy bien explicado, como todos tus vídeos. Me he aguantado 2 anuncios para compensar 👏

  • @bikefarmtaiwan1800
    @bikefarmtaiwan1800 2 года назад +1

    What a phenomenal video! You have explained the full workings of an industrial servo motor. The industrial ones use a quadrature encoder but otherwise are identical

  • @Hackinside
    @Hackinside 2 года назад +1

    You can make a nice analogue clock that shows several time zones with this project. Nice video.

  • @jozefsoucik3115
    @jozefsoucik3115 7 месяцев назад

    7:04 -> not sigle one driver in your video is 3 channel...or am i wrong? i see DRV8833 , LN298N and its mini version.

  • @earielflare2203
    @earielflare2203 2 года назад

    Hi and thanks for the video! 10:08 10:48 These moments show that the rotor shaft rotates irregularly, accelerating and decelerating. What can be the reason for this?

    • @Taygetea
      @Taygetea Год назад +1

      that's called cogging, as it moves between being oriented to each permanent magnet inside the stator in turn. its possible to compensate for it in software (anti-cogging).

  • @sidamarali3030
    @sidamarali3030 Год назад

    Great work. So as such the bldc will have a static tork as well. Just like stepper motors.

  • @arandarosalesdaniel7222
    @arandarosalesdaniel7222 7 месяцев назад

    Hello friend, I have a cuestion, the signal you measure in min 10:54 is in the input of the motor, or in the output of arduino?
    I have doubt if the driver you used also has the function of transforming the pwm signal into a real sinosoidal wave. Thank you. Great video.

  • @utube521
    @utube521 11 месяцев назад

    I'm thinking of 2804 BLDC motor. I understand that I need to supply 3 wires (phases) to it from the miniFOC driver and nothing else. My q. is : how long can these wires be? I need some 2 meters. thanx

  • @rays14ful
    @rays14ful 10 месяцев назад

    Best video that I have seen. I was having lot of trouble understanding how this worked. This video made it clear. So you can do open loop control just by creating three PWM signals 120degrees apart. I had a question. We can do all the clarks/parks transforms to figure out how the pwm have to be modulated but what if we have a look-up-table instead with the rotor positions specifed and the pwm values for those positions so the field is always 90 degrees to the rotor? Is that a viable option?

  • @souravghosh7903
    @souravghosh7903 2 года назад +3

    Hi electronoobs, thank you for this wonderful topic. I am curious about the black motor with hollow shaft used in the video. Can you share it's make and other relevant information?
    Also, I request you to add a few points for your next video on closed loop control.
    1. Use the encoder in all modes, i.e. ABI, SPI and pwm.
    2. Using a lookup table for sinewave generation, as the signals are repeating with an phase shift of 120 deg. This would lead to lesser computation load for microcontroller.
    3. Use a smart driver like ti's DRV8353 for fault protection for larger version.
    4. I have worked with AS5048A, they are somewhat prone to get damaged (I don't know how). Always keep spare.
    Wish you all the best for your upcoming videos.

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад +1

      I will add more details in the description in a few hours. I'm working on the tutorial website. I will share everything!

    • @souravghosh7903
      @souravghosh7903 2 года назад +1

      @@ELECTRONOOBS I have also requested to add a few points in the closed loop control, please take a look at the suggestions.

    • @ABaumstumpf
      @ABaumstumpf 2 года назад

      The controller really has nothing else to do so it does not matter at all, yet still the first think i thought was that he should use a lookup.
      But also the "analogRead" and "analogWrite" as well as "delay". The inbuild-functions are nice and simple to use, but knowing what they actually do can be very important as "delay" can royally mess with the analog-functions, even worse if you use anything else that uses the timers.
      And the difference can be astonishingly gigantic:
      A friend and me tried creating a sender/receiver for audio-encoded data (to be hooked up to walkietalkies) using the good old dual tone multi frequency (old phone-number encoding). Turns out that is not possible with "normal" inbuild arduino functions - it is too slow - but using the ADC and timers directly it was no problem.
      Here we are dealing with a very simple sin-wave - they are great for lookups as the computation is a lot more complex than the result, and due to the nice symetrical nature only a small part needs to be actually stored. For bonus-points you could go way deeper than needed, storing the PWM-wave as a bit-pattern. For this simple motor-control a 64-entry lookup should be plenty (~1.5° resolution).

    • @souravghosh7903
      @souravghosh7903 2 года назад

      @@ABaumstumpf you are absolutely right. If anyone wants efficient way to control, have to get hands "dirty" with register and asm codes.
      Similarly ADC could be freerunning. Just collect the data whenever needed.
      Lookup table is a must to reduce computation time. Makes dramatic change in time.

  • @brandenchristiansen8529
    @brandenchristiansen8529 2 года назад +2

    Hey does any one know what a practical RPM limitation is when using the Open Loop Code "Speed Control" method? Obviously this controller is designed for slow and precise rotation which is largely why I want to use it but I am very curious to know the practical upper limit? Of course it will also depend on how many poles the motor has so maybe a more appropriate question is how many full phase changes per minute is this capable of?

  • @cassillayen-pon1504
    @cassillayen-pon1504 Год назад

    Hello, is the L6234PD driver only used to add the radial magnet sensor ? If we don't need this option, can we ignore it ? Thank you for your video.

  • @trjaudio
    @trjaudio 6 месяцев назад

    Hi. Do you have a link to the 20(or whatever) pole motor shown at 9:17? The links to motors on your site don't have that many poles. Thanks :)

    • @ELECTRONOOBS
      @ELECTRONOOBS  6 месяцев назад

      Acabo de encontrar este increíble artículo en AliExpress. ¡Échale un vistazo!
      33,37€ | Tarot-Motor sin escobillas 4006 620KV, Motor Multiaxial TL68P02 para cuadricóptero multicóptero teledirigido
      a.aliexpress.com/_Ez1p84r

  • @PhG1961
    @PhG1961 2 года назад +2

    This is really very VERY awesome !

  • @tarushsingh1108
    @tarushsingh1108 Год назад

    I had a question regarding the logic for the MOSFET switching so as a sine wave is applied to all 3 phases at the same time is the signal provided to the two MOSFETs for the same phase the same or inverted.

  • @sri198904
    @sri198904 2 года назад

    could you show us plots of the threephase voltages and currents ? idk without proper feedback for the phase currents, it is hard to maximise the quadature component of the resulting phasor sum to maximize the torque. I dont think arduino's pwm has enough resolution to create a decent enough sinusoidal phase currents. Could you tell us what is the switching frequency ?
    This is a good project for beginners but might have issues when you scale it up for larger applications...

  • @sammflynn405
    @sammflynn405 2 года назад

    You deserve 100 million sub

  • @brendanmccabe8769
    @brendanmccabe8769 Год назад

    I'm interested in this to control a car speedometer, only thing I'm not sure of is while this obviously allows for low RPM would it allow the motor to spin at high RPM? I need to be able to spin from 150-3000RPM, torque loading would be negligible. Being car based I need to be able to run from 12V supply.

  • @literally_british_544
    @literally_british_544 11 месяцев назад +1

    in future projects could you break out the ICSP pins? they aren't connected to anything and this makes the controller nigh impossible to bootload. If you have any tips on bootloading the chip, please tell me because i've found it impossible to connect anything to the tiny ICSP connections.

    • @grantkeefe9866
      @grantkeefe9866 10 месяцев назад

      I am having a similar issue, how did you resolve

    • @literally_british_544
      @literally_british_544 8 месяцев назад

      @@grantkeefe9866 I had to create a separate PCB to burn a bootloader to the chip. Only then could I solder that chip to the main board and have it work.

  • @harikamalakarreddydarapu7410
    @harikamalakarreddydarapu7410 2 года назад +2

    Excellent project and very well explained

  • @DanChase84
    @DanChase84 2 года назад

    Thank you for teaching me something new about stepper motors!

  • @rifqial-wafi5135
    @rifqial-wafi5135 2 года назад +2

    you can make the pulse vector modulation FOC based on the open source simpleFOC group from MIT

  • @nielsdaemen
    @nielsdaemen 2 года назад +2

    Can't this be combined with regular speed controllers so that you can have smoother motion at low speed but high torque and efficiency at higher speed?

    • @arcmchair_roboticist
      @arcmchair_roboticist 2 года назад

      yes, but it's more expensive. A fancy motor controller usually will do this for exactly that reason.

    • @nielsdaemen
      @nielsdaemen 2 года назад

      @@arcmchair_roboticist Okay, makes sense if it's with feedback. But without feedback it would be simple to implement in software without hardware changes

  • @philohan95
    @philohan95 2 года назад

    Would it be sufficient if I take an axial magnet and rotate it so the poles are parallel with the encoder? Or is the radial magnet truly required?

  • @dmitrytyugin6261
    @dmitrytyugin6261 2 года назад

    Thanks for code explanation, it's simple and clear as well as the code. Good job!

  • @danilolattaro
    @danilolattaro 2 года назад

    Very cool and minimalistic project!
    If the sensorless implementation without motor current sensing can be classified as FOC or just a sine wave inverter is questionable.
    But as soon as you wire up the encoder and can identify q and d axis a little better, then it's more like it

  • @prathameshraikar5428
    @prathameshraikar5428 2 года назад +1

    Excellent💯👍 explanation

  • @larrys_truth
    @larrys_truth 9 месяцев назад

    when ordering the board Will they populate with all parts?

  • @danfish95
    @danfish95 2 года назад

    Hi I think it would be really cool if you took of the bldc rotor off, then use the field visualizer to show the actual change in real time

  • @james2749
    @james2749 Год назад

    Did yoy ever make a follow up video with closed loop?

  • @paulhimle
    @paulhimle 2 года назад

    Is this the same technology ODrive boards use for control?

  • @ernieprevost6555
    @ernieprevost6555 9 месяцев назад

    Hi Andrei , thank you for making these very interesting videos. I recently watched your video on “FOC Driver Controller”. FOC is new to me but it looks like what I need for a robot project. In your video you pointed out that in V1.0 you had missed 2 connections on D9 & D10, has this now been corrected? Also I have not used PCBWAY before, I created an account on PCBWAY from your link and noticed 2 options, “Only PCB” and “PCB+Assembly”, if I opt “PCB+Assembly” and select a quantity of upto 20 it quotes $35 including shipping. This seems very cheap, what does it mean by assembly? How much of the board is populated? Do I need to add any other components when I receive the board? Thank you for a very informative video.
    Ernie

  • @mecatronicsforeveryone9565
    @mecatronicsforeveryone9565 2 года назад +1

    thank you very much. I love your videos and I've learned a lot.

  • @Poult100
    @Poult100 2 года назад +1

    Thanks for posting a well explained video and tutorial. With the motor you have used, how do we calculate the maximum resolution of control in degrees? Ie, what would be the maximum number of steps per revolution?
    Thanks again and nice PCB by the way!
    Simon

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад +1

      The resolution is given actually by the PWM resolution witch is quite low for Arduino, only 8 bits. The sine signal repeates every 360 degrees so it goes from 0 to 359. But for a full rotation we need repeat the 360 degree sine wave "X" times where X is affected by the amount of poles the motor has.

  • @diylifetv105
    @diylifetv105 2 года назад

    hi. I would like to know if you can customize a FOC controller but with high voltage and high amperage? Thank you!

  • @ThingEngineer
    @ThingEngineer 2 года назад

    Nice! What kind of torque are you getting from this with no gear box?

  • @chome564
    @chome564 2 года назад

    Thank for the great video.
    Is there any benefit of using FOC over using a stepper motor?

  • @ДенисМатвеев-ш1с
    @ДенисМатвеев-ш1с 10 месяцев назад

    Does this controller allow you to stop the motor at the right place?

  • @bambumbambu
    @bambumbambu Год назад

    is there a cheaper L6234PD alternative?

  • @byrondawson2510
    @byrondawson2510 3 месяца назад

    Hi ! Like your vides and open source stuff, good job. Just so you know the magnet in NOT radially polarized, its DIAMETRICLY polarized.

  • @MartinBgelund
    @MartinBgelund 2 года назад

    Awesome project! Thanks!
    I hope you get the encoder part sorted out.

  • @CKILBY-zu7fq
    @CKILBY-zu7fq Год назад +1

    Very cool 😎 👌

  • @andrejladislavsmith
    @andrejladislavsmith 2 года назад +2

    8:20 Maybe you should look at style of your code.

    • @stefano.a
      @stefano.a 2 года назад

      In what sense?

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад +1

      What do you mean?

    • @andrejladislavsmith
      @andrejladislavsmith 2 года назад

      @@ELECTRONOOBS for example variables, variables should be written in lowercase snake_case or camelCase but not uppercase style in which are constants written.

    • @andrejladislavsmith
      @andrejladislavsmith 2 года назад

      Consistency. Below //Inputs and outputs you have some constants, but naming and style is very poor. Is variable int poles = 11 even used? You are mixing int and int16_t typedefs. Setup and loop functions have opening braces in the same line as function declaration, but function moving has it on the next line. The function moving itself is redundant. Consider making function of converting degrees to radians "SINE_A*PI/180" -> double toRadians(double degrees) { return degrees * PI / 180.0; }.

  • @carlosarthurpetry3674
    @carlosarthurpetry3674 2 года назад

    What is the relation between this foc controller to a stepper motor driver like the ones that are used in 3d printers? Is it the same thing?

    • @sfalvarezg
      @sfalvarezg 2 года назад

      They are different. Stepper motors don't have magnets

  • @eduardodacosta4670
    @eduardodacosta4670 Год назад

    Hey man, great video!
    Would it be possible to drive a 22V BLDC motor from a much higher voltage source by simply controlling the voltage going into the motor via the PWM signal? Or is this too much to ask? This would save me on having to get a VERY powerful DC to DC converter, 3kW or so...
    In reality I just need very high speeds, so FOC might be overkill.
    Thanks!

  • @myhobbies5965
    @myhobbies5965 2 года назад

    Closed loop with hall sensor and with BEMF also please. Very nice explanation.

  • @trongnguyenphanminh5615
    @trongnguyenphanminh5615 Месяц назад

    if my motor want high A like 30A So I must do what?

  • @andymuzzo8568
    @andymuzzo8568 2 года назад +2

    Maybe the next step on from this would be a DSLR gimbal?

  • @ratbagley
    @ratbagley 2 года назад

    Like a micro VFD. Sweet!

  • @ariaabdi9979
    @ariaabdi9979 2 года назад

    that's sooooooooo great. thanks for your best Expression

  • @winn_video
    @winn_video 8 месяцев назад

    your video really helped me learn, I watched all your videos especially about ESC, I hope you can make a detailed explanation video about VESC - Open Source ESC from vesc benjamin vedder, I want to make something like that because if you buy it from abroad the shipping costs very expensive, I know there are other people who have explained it about vesc, I think if you explain it, it will be easier to understand, thank you

  • @rahulkushwaha9500
    @rahulkushwaha9500 2 года назад

    IDK why you need power resistors to limit current, haven't read the datasheet of your 3phase H bridge driver chip. But I have used DRV8313 in past when i was working on a gimbal. It did not require a power resistor and it is available in smaller package, and goes up to 60V VIN, I guess. Also you can check ST's STSPIN series of H bridge drivers, they come in QFN package but have low input voltage. For the board design, you can make it in a circle shape and give all the mounting holes and place the encoder right at the center and mount the PCB with some spacer depending on the clearance available between magnet and encoder, 1mm is a sweet spot, anything above 2mm will give errors/glitches in the PWM signal, this was true when I ran the tests, yours might differ.

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад

      Thank you so much for your feedback :))))

    • @danilolattaro
      @danilolattaro 2 года назад

      Some sort of current limiting is required, because he's not adjusting the PWM duty cycle to limit that. Just connecting the motor to Vbus with a random duty cycle would lead to uncontrolled current through the motor windings due to the extremely low winding resistance and inductance

    • @sri198904
      @sri198904 2 года назад

      dont think it is so easy to solder an QFN package at home without using hot air and with less soldering experience by someone...

  • @YouGenom
    @YouGenom 2 года назад

    This is super nice and great video!

  • @mercedeszevallos5042
    @mercedeszevallos5042 2 года назад

    Hola, Excelente proyecto. Tengo una consulta, Deseo trabajar con un motor Brushless DJI E200 - 6010, 130 Kv, los componentes utilizados en la placa que mostraste en el video, ¿Cuanto es lo maximo de voltaje y corriente que puede soportar ? ¿Podría funcionar con el motor que te comente?

  • @mietekgpz
    @mietekgpz Год назад

    Where I can buy those modules? Your shop doesnt work

  • @seanmackenzicape6313
    @seanmackenzicape6313 2 года назад

    how can you use it with mosfets?

  • @christopherross8358
    @christopherross8358 2 года назад

    You have something I can use with a 2 phase motor?

  • @cellularmitosis2
    @cellularmitosis2 2 года назад

    Are you using any analog filtering? I don’t see how the PWM turns into a sine wave.

    • @ELECTRONOOBS
      @ELECTRONOOBS  2 года назад

      The applied pulse is not "real SINE" is just followig sine values all the time for all 3 phases so the current passing through the coils will also follow a sine value so the rotro will follow the magnetic field created.

    • @myhobbies5965
      @myhobbies5965 2 года назад

      Closed loop with hall sensor and with BEMF also please.

    • @myhobbies5965
      @myhobbies5965 2 года назад +1

      Motor inductance and resistance filter to sine wave somewhat depending upon pwm frequency

  • @velialiyev3689
    @velialiyev3689 2 года назад

    I WONDER HOW CAN I CONNECT MY Globisens LabDisc TO ARDUINO VIA USB CABLE? ARDUINO HAS TX AND RX PINS, LabDisc SUPPORTS UART PROTOCOL. BUT I DON'T KNOW HOW TO READ SIGNALS FROM LabDisc OUTPUT CABLE WHICH IS FOR CONNECTING TO LAPTOP.
    IT WOULD BE FANTASTIC IF YOU SHARE A VIDEO ABOUT IT.
    THANKS IN ADVANCE.

  • @lasersbee
    @lasersbee 2 года назад +1

    12:34... You could have asked the PCB supplier to score the joint between the 2 PCBs for easier/cleaner snapping off.

    • @ArnaudMEURET
      @ArnaudMEURET 2 года назад

      I hear that each additional manufacturing step is paid for. I’m sure most people would rather pay with their time scoring and severing manually.

    • @lasersbee
      @lasersbee 2 года назад

      @@ArnaudMEURET You could save even more money by not having the holes drilled or by not having Silk Screening. You could even save additional cost by Hand wiring on a breadboard without buying the PCB....

    • @ArnaudMEURET
      @ArnaudMEURET 2 года назад

      @@lasersbee Hand drilling the holes is notoriously error prone. I don’t think most people would choose this trade-off. Resorting to a fully manual wiring approach based on prototyping boards would ruin the non-functional performance and characteristics that most people seek by having PCB made industrially.

    • @lasersbee
      @lasersbee 2 года назад

      @@ArnaudMEURET I’m sure most people would rather pay the few cents more to have the PCBs Scored professionally rather than waste their time scoring and severing manually making for an unprofessional hack job.... Walking away shaking head....🙄

    • @ArnaudMEURET
      @ArnaudMEURET 2 года назад

      @@lasersbee Our host has been using their service for many years. Why do you think he chose to do it himself ? Ignorance ?! 😂

  • @Krishna_25
    @Krishna_25 2 года назад

    Sir how to connect multiple MOSFET in dc to dc boost converter

  • @j________k
    @j________k 2 года назад

    This is frickin awesome!

  • @Ben-ls2ho
    @Ben-ls2ho 2 года назад

    Gosh, I didn't watch this video cause I have no idea what it's about! Btw, what's foc?

  • @nin1ten1do
    @nin1ten1do 4 месяца назад

    THX A LOT,. already looking for..

  • @Pawe-mx9wc
    @Pawe-mx9wc 2 года назад

    This is awesome thanks for sharing!

  • @jeganvivekanandhan1351
    @jeganvivekanandhan1351 2 года назад

    Great work!

  • @Drxxx
    @Drxxx 2 года назад

    Amazing channel!!

  • @Avnish-sk4ll
    @Avnish-sk4ll 2 года назад

    That's Great 😍😍😍😍

  • @wesselkooijman5268
    @wesselkooijman5268 10 месяцев назад

    it looks like your encoder does work but you apply a constant torque

  • @sinancetin2376
    @sinancetin2376 Год назад

    We are still waiting the closed loop. Thanks a lot it is good video

  • @chrisalexthomas
    @chrisalexthomas 2 года назад

    I'm learning so much from your channel. I want to create a arduino robot which drives around, but the motors are too loud and annoying. So I was thinking, drone motors? but holy shit it would disintegrate into the nearest wall if they span that fast, but this actually looks like a really great way to rotate the wheels with a quiet motor with great precision. Amazing!

  • @ranganatennakoon
    @ranganatennakoon 2 года назад

    i love it very useful

  • @Telectronics
    @Telectronics 2 года назад

    I would get further away from your motor to only pick up that magnetic field from your magnet otherwise it´s possible that your hall effect sensor could pick up the motor stray fields and this could get a irregular response like you see in your video.

  • @rabiraju9414
    @rabiraju9414 2 года назад

    Great work

  • @PRarduino
    @PRarduino 2 года назад

    It is príncipe gimbal great!!

  • @grantkeefe9866
    @grantkeefe9866 10 месяцев назад

    Would anyone like to share the Arduino IDE configuration that allowed them to successfully upload code, I am receiving the: programmer not responding error and have tried a couple of different Board/programmer configurations

  • @cesarmuttio506
    @cesarmuttio506 2 года назад

    muchas gracias

  • @Korystuwatch42
    @Korystuwatch42 2 года назад

    Brilliant bro

  • @Lucas_sGarage
    @Lucas_sGarage 2 года назад

    I challenge you to make a Odrive killer, that would be over the top (even if I have to pay a dollar or two to get the design)

  • @tino_S
    @tino_S 2 года назад

    may you please link some texts on where to read the theory on this?

  • @ejonesss
    @ejonesss 2 года назад

    1. couldnt you just omit the sensor and if the motor gets out of sync then do a 360 spin to re orient the motor?
    it is like in the old days when you would turn on dot matrix printers the print head would move over and back and todays computer optical drives do the same thing when turned on.
    2. use the motor windings to detect position via the kickback that makes sensorless escs and ebike controllers work.

  • @lalogarcia6686
    @lalogarcia6686 2 года назад

    great video

  • @mahershhab3824
    @mahershhab3824 Год назад

    ممكن المساعده بمقابل مادي لو سمحت

  • @wali-q1c
    @wali-q1c 2 года назад

    أنت الاذكى

  • @osmanturanyerlioglu2140
    @osmanturanyerlioglu2140 7 месяцев назад

    Teşekkür

  • @minravex9919
    @minravex9919 2 года назад

    Can u teach pcb design from scratch

  • @ivanalexis11
    @ivanalexis11 2 года назад

    Saludos desde chile

  • @yaswanthreddyb
    @yaswanthreddyb 2 года назад

    Wow great