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Awesome! Thanks for sharing!

It is the same way on the Marcato Atlas 150 model?

Great video, could you please put names and authors of the reference papers in the article

Beautiful Work!!!😀

Thanks You Matan! Here in Brazil working in NANO board! And Thank mister SOFTSUBU I have the same issue in lnes:number 372 : TIMSK1 = (1 << TOIE0); and line number 434 : ISR (TIMER1_OVF_vect) NICE WORK!!

2:03 who made that name plate with "RATTING"? LOL

Great work. Recently, I have been fixing a VFD board. Your video has lifted my understanding to another level. Thanks heaps.

It would be interesting to see how to control a doubly fed AC motor for position and variable speed. I understand it is related to controlling phase and frequency of one or both feeds.

It's like I see a summary of my senior year project back in the university 3 years ago. Back then we don't have clear explanation of this control method we only have to read though IEEE and textbooks to understand these things. Your video will be such a great help to fellows who wants to learn more about motor control methods.

Hi Matan, it's a nice presentation of your project. Have a request, could you please share your hardware schematic or any Garber files for reference?

WOW, You need a VESC from Bennjamin Vedder, a controller that is open source. Man I would love to pick your brain to help me program my motor, can you explain how to calculate motor inductance difference iq-id? how do I calculate motor flux linkage? These are my measured motor parameters, R = 66 milliohm, Inductance = 366 microhenry with a max voltage of 84 volts, FOC, no field weakening yet.

2:35 You forgot the most important button, which is the rotation direction control button

Subscribed! I'm an electrical instructor and will always support growing channels like these!

Thank you, very informative to watch. I never fully understood the reasoning and working principle of field weakening up until now.

Sir, As per the circuit diagram. We can supply the single phase input right?

Can please you put video for foc Pmsm also ?

Man, I watched all 3 vfd videos and the level of presentation you provide is off the scale. I am speechless. 👌👍

Please provide me Arduino code

Hello, do u have an email to contact u ?

Hi Matan. Great project, really. I just need to your help. Do you have vfd all pcb gerber files and all codes. Kindly let me know. I’m very thankful to you.

He said at the beginning, he'd keep the equations to a minimum. 🤣 Not long after that, my brain went into overload, short circuited & blew a phase.

im realy astonished on how much information i got from your video. i can tell that you have a Phd. -You explane very well from step A to Z -You compare and tell why method X is better than method Y -You update the information by actualy looking at whats new (what researchers have found) -in 12 minutes you saved me the time of maybe 12 hours or more ! Most importante thing is you SIMULATE what you SAY Thank you man i realy do appreciate the work you did.

really great helpful video, seeing more videos like this would be awesome

Hello ! Thank you for posting the videos on TH-cam, and for the repository on GitHub

You rule! fascinating stuff

I have some questions: 1. How to align iD with rotor's magnetic flux (alpha axis) ? (With BLDC, PMSM I just simply let the Rotor return to Phase A by enabling HA = 1, HB = HC = 0) 2. At 8:45, (26) how to determine S ? Is this equation belong to laplace domain ? 3. Tr is sampling rate and Lm is inductance of 1 coil (from Line to N or Line to Line) , right ?

Very informative and useful. Nice work. 👏 👏 👏

Hi,bro✋ I want make a vfd for single phase motor Of course my English is not good and I didn't fully understand what you said in the video Can you help me ?

I have a few pointers. Your mention of splitting ground planes usually refers to mixed signal circuits, where analog and digital low voltage signals are concerned. Inverters have thier control boards always galvanicly isolated. Instead of those small integrated dc-dc bricks they use a single smps running off the main dc rail with isolated windings powering each isolated subcircuit. Also current measurement is done on 2 sometimes on all 3 phases. One thing missing from your inverter is any brakeing circuit. A brakeing chopper transistor and a braking resistor are used to keep dc rail in check, as when you brake electronically, the energy goes back to the capacitors raising the voltage. If you brake without any resistor connected, the voltage will go well above normal and blow up the module or caps.(ask me how I know) Best of luck with your project. I would love to see how it turns out.

Most important factor is rotor and stator winding temperature, these might be estimated well enough using a good thermal model. That improves accuracy dramatically, provided the thermal model is good

Could you please check your code. I can't compile code

thnks im from algeria

Sweet video. 😎 Thanks.

Very interesting. 😎 Thank you.

Excellent over view. 😎 Thank you.

What ripple voltage did you allow after the rectifier and before the power stage?

Thanks gazzilion times. I needed this video

Thank you for your efforts !

Is there anyway your friend would share the stl files? I'm trying to do the same to my Hario. Thanks!

Call me stupid, but i would wager that seeting the gear box ratio in such a way that the grinder makes 1rpm could help with cup quality. Lots of tests suggest that lower rpm makes less fines and more clarity. Thats especially good for filter/pourover and modern espresso There is a very expensive commandante c40 motor kit for like almost 300bucks. But the low rpm really made excellent shots

STL files: www.hangbar3d.com/other-projects Cost details: Must have parts: DC motor - 16 USD Planetary Gearbox - 13.6 USD AC to DC 24V 10A power supply - ~27 USD 3D printing of housing + Miscellaneous - ~ 15 USD Shipping - 20 USD Total - 91.6 USD Engineering curiosity / nice to have: PCB - 40 USD 3D printed metal parts - 23 USD Total - 63 USD If we only used the "Must have", it would've cost us ~92 USD. A comparable off the shelf product, which costs €109,95 (~116 USD) is the "Electro Solo" by Hario: www.hario-europe.com/products/electro-solo-portable-electric-grinder Shipping ~ 25 USD. Still not the best financial decision :)

So, what was the total cost (not including the value of your and Barak's time, but including the Hario, the prototype prints, etc.)? Could you have bought a decent powered grinder for the same amount or are you still ahead?

Love it! I need one too!

The entire process.... such a GRIND!

Can you give me a complete wiring diagram please?

Woww thanks man 🙂🙂🙂

Excuse me can you turn it I want to see it from down the machine because I am in a dilemma I open it then I don’t know how to replace please answer me

I need help for money

Cod?

Excellent ❤