Run a Hard Drive Brushless Motor Without Driver

[@boblewis5558]

You CAN use motors made as part of the frame - I have several. You simply need to very carefully cut the frame around the motor (ideally with a band-saw) making sure NOT to damage the flex connector that will almost always be present for such motors. Once cut it can be used like any removable motor.

[@richardkaz2336]

A start capacitor should work, you may need to play with some different values ranging from say ~20uF - 300uF and suitable AC voltage rating. Placing the capacitor between the floating phase wire and one of the other AC phase wires will result in a phase shift in the current and subsequent magnetic field shift in that winding. Resulting in a tendency for the rotor to favor to move in that direction and thus allowing the motor to start spinning up to near synchronous speed. Different the start capacitor capacitance will give different phase shift angles depending for a given winding impedance. This increased phase shift together with the increase is winding current due to the apparent change in the winding impedance due to the introduction of the capacitor impedance will result in better starting torque. Note though the starting torque will not be very high or as good as having a 3 phase VVVF driver. The added benefit of a PWM drive is good starting torque and variable speed in excess of that attainable at normal mains frequency.

[@ELEVOPR]

I swear my Mother In-law has a few of these Motors in her mouth, Once she gets started, there is no stopping here :o/

[@MsJaffal]

LOL

[@musab3210]

Hahaha

[@j4techmediajishnusreedharst]

🤣🤣🤣🤣🤣

[@sphalt58]

😂

[@ankitsaini4470]

How not stop can you share me that's wiring ( 3 pins)

[@zainaabdin]

By adding a capAcitor between ANY PAIR AND Supply the other two it will spin by itself associated with vibration my innovative friend

[@jamesharrell4360]

@Francisco E. Parulla same way a single phase induction motor needs a capacitor to start. And switching the legs connected to that capacitor will change the direction.

[@npshah101]

you are right

[@LEO-xo9cz]

Starting capacitor like a washing machine motor but on a micro scale. 👍

[@simontay4851]

A washing machine motor is a brushed universal motor. Not an induction motor.

[@lazyh-online4839]

@@simontay4851 never seen a washer with a universal motor, I've seen single phase ac, I've seen brushless motors, I've even seen a three phase induction, but I've never seen a universal motor on a washer.

[@Debraj1978]

Single phase create oscillating magnetic field. You need minimum of 2 phase to have a self starting motor (for synchronous motors). Also, speed of motor will be fixed (synchronous motor + 50Hz).

[@rhalfik]

1:48 "In this case we can't use the motor" I beg to differ. We can use the motor o-n-l-y in this case.

[@kjyhh]

His 'this case' meening: the sitruation and not 'the frame'.

[@zherkohler4188]

@@kjyhh its a joke

[@ATrekafied]

Lol!

[@TechBuild]

I guess the 4-wire brushless motor has an internal star configuration wiring. So, by connecting the common pin to a DC voltage source and energising the other three pins in a correct sequence can make the motor run, much like a unipolar stepper motor. By using a decade counter with a signal generator, such as a 555 timer the motor's speed can be varied.

[@bolt2510]

The reson why u must give a push is because the alternating current only flows to 1 of the coils. If it was hooked up to a driver the driver would fire the coils n,s,n,s - and so on deleting that push from the beginning and have much more power and efficiency

[@Tensquaremetreworkshop]

Use a brushless controller from a model aircraft and it will self start and you can select the speed by injecting a pulse between 1 & 2 mS (simple 555 circuit)

[@rsharma3602]

kzbin.info/www/bejne/ipa9iYt6pKp6q8U

[@hyqhyp]

Could you use caps to convert the transformer into multiphase one, and then energize all the coils to run the motor at higher efficiency?

[@darthglobe4285]

Another amazing video. Excellent explanation and original thoughts. That's what i like the most in your videos. First request : Please never shut down your channel. It is one of the few gems here on KZbin. Second request : Always keep your videos like this: simple!! And to the point. With pros and cons of the things discussed out. I really really appreciate your work. Keep it up!! -another tinkerer

[@prasadkarlekar7856]

You didn't give DC supply. Your supply was AC

[@Wiipro2006]

Every Device who need DC power they definitely runs with Supply or Adapter so they use mini transformer as Supply. Transformers converts AC power to Dc as low as you need.

[@alchemy1]

Should the supply be 12 VAC maximum? And I was wondering if these little motors are basically induction motor without magnet as a rotor but more like a squirrel cage rotor?

[@paulmarshal2804]

What is the point or possible usage if you have to give initial run? The scratch your back maybe?

[@chamindanaullage9294]

What is the voltage and ampier of transpormer that you are used

[@AmitAdate]

12v 120ma it mentioned on the transformer that he used.😅

[@E_tronics96]

Would adding a capacitor like copying the idea of a usual single phase induction motor help to maybe allow self-starting? Also is it possible to do this even?

[@jamesharrell4360]

Yes.

[@dragonrider4253]

Connect these to a low voltage 3-phase power source. This makes it a AC synchronous motor.

[@jumcopper]

and what is that low voltage please

[@dragonrider4253]

@@jumcopper anywhere from 6 to 12 volts. ( or about 9 volts or so RMS per phase.)

[@VidarrKerr]

I have a 9 volt DC transformer. Is there a way to make that work?

[@sunsun1995]

In fact brushless motors work with AC current that come from electronic cuirct and control of speed by different frequency. There for its work with AC currnt that come from transformer but its slow because the 50 or 60 hertz it's so low frequency for this motor

[@two_number_nines]

actually motors that are a part of the frame are more usefull. if you tighten it with a vice near the shaft holding the bearing the thin aluminum cast will break and the rotor stator assembly come off in very compact form. after that you can pull out the shaft to rewind the motor if you want and in my case place 3 hall effect sensors. using this method i converted 20$ rc car into brushless rc car

[@ndoghouse6853]

Depending on the size of the magnet you could probably use a PC fan controller as long as it has PWM enabled. Not sure if this would work tho? Maybe three phase motor would work. Theres always three hall sensors in that case unless it uses current pulse to trigger the next phase instead of hall sensor? I wonder if it would run with just a pwm pulse square wave or does it need zero crossing? Gues ill find out. Im playing with one now.

[@pabloveneziano6267]

Un capacitor no podría funcionar para "evitar" darle el arranque manualmente?

[@williamnichols2067]

I've added a speed control using a sine frequency generator on my phone wgere you can adjust the frequency. I plugged my phone audio out into an amplifier which then, I connected to the motor. But after around 150 Hz, you start getting harmonic imbalances and the motor comes to a buzzing hault, because you are usung only one phase.

[@euvo_sound]

I did this also to my stepper motor

[@ovalwingnut]

Very COoL... Beautiful little motors! Curious what the wattage draw is spinning and "not spinning". Thank you for the video.

[@psykopat81]

can we use 12v adapter ?

[@elektroatze7068]

a cap between the freewire and + or - wire can run the motor without touching it forward and backwards if you change + or -

[@sykeamer88_20]

If you want a more reliable motor you can just connect a capacitor up to it and put it on a different pair of ac line creating 2-phase ac instead of just one

[@cachhomevideo1546]

Thanks for sharing now I know what I can do in my old harddisk

[@TheWadetube]

Thank you for narrating your video. so many foreign videos don't.

[@masongovender9231]

Can the motor run with 220v AC ?

[@danushkabandara7351]

Please tell me this mortor oparating voltage and amp .but not working my 4 pin hard drive mortor .

[@soxxy8588]

Got a link to the transformers please? Cheers bud ;)

[@bakidilek]

how about a wave generator??

[@mohammedal-alaw6249]

did you try with the center tap transformer for 3 terminals would it start automatically?

[@virtualfather]

can you turn those motors into generators?

[@ludicscience]

Yes I have a video on that

[@virtualfather]

do you have a link? thank you

[@boyanatanassov9263]

Can you do a video on Charging and discharging caps in series and parallel under different loads?

[@ludicscience]

Let me think about it

[@carlhess512]

Can you in any way make the speed adjustable? And is I put a 12” platter on to the bearing can I get to it speed at 33 1/2 rpm ?

[@bridgendesar]

Chuck a big ass capacitor across to the 3rd lead, should work like a single phase induction motor (it's how combi boiler motors work)

[@wewillmakeyouaplaceforthew5793]

Can I just use an l298N motor driver to drive this motor?

[@sanvalek4945]

no

[@teimuhevonen7957]

can you please make a video on how to run hdd with laptop charger adapter

[@federalexpression]

do they chain together?

[@Kiyarose3999]

Can these motors be used to generate electricity?

[@ludicscience]

Yes

[@andiback]

One question Sir: Do the motors start themselfes if you add additionally a capacitor at another pair of wires?

[@TheBvfnbv]

QweieTop

[@Matriarchy_Feminism]

No

[@nonothebot]

This is very interesting, I would like to know how to run the motor of the scanner laser assembly in a laser printer, the one with the octogonal miror. Please help !

[@MrDomingo55]

First determine if its a stepper motor or not. Motor may have some identifier.

[@HiperTutoriais]

Thanks, very interesting.

[@dreamkiss4u]

it still requires that part so either way you still have to buy something or find it inside something....the same as finding a small speed controller and parts inside something but on ebay you can by the parts needed to work for like only 3 dollars for small motor like that.

[@Wiipro2006]

3:55 he Really Touched the Transformer 😂😮😅

[@napomania]

A question: I have a HD that seems dead. You think that changin motor i could give new life to it?

[@ludicscience]

95% of the time is the driver that fails, not the motor

[@napomania]

@@ludicscience you're right. i have to change pcb ..

[@mikebreler9724]

So what are some potential uses for these as a stand alone motor considering the power to weight ratio?

[@alfred4686]

Can find use in gemology and spectroscopy on the cheap.

[@MKII400]

how about RC controlers with those motors?

[@felixcat4346]

Thanks for the experiment. Why not try using a HV starting capacitor to get it started? Maybe use a microwave oven capacitor.

[@CristianDiPuorto_glockshock]

Joseph Nicholas maybe you could get it started with a 20v high capacity cap and a rectifier, but considering the poor reliability and torque you get I guess it's much easier to buy a dedicated chip. Valuable video nonetheless. Could turn out useful in a pinch.

[@ErlendErvik]

Why the HV capacitor? the motor is quite much made for 12V and a capacitor wouldn't help you get it up to speed, it's a synchronous motor and not asyncronous induction motor where you can have it slow-starting. The AC would need to track the motor up to speed for the start to work. Or it must start on some few cycles or be spinning the right speed.

[@boyanatanassov9263]

What needs to be done to get more AMPS with the same setup? If you charge a capacitor rack, wouldn't you be able to pull HIGH AMPS from the CAP?

[@ludicscience]

Yes but only for a limited period of time

[@boyanatanassov9263]

This is the tricky part I always wanted to know how to calculate... How to come up with the time a different load can stay above certain voltage while discharging at certain rate? So that on the other side you can pump volts (with some voltage pump) at some rate so that you can keep the discharging cap full at all times... Are you with me? Thanks!!! I LOVE your videos...

[@osten5419]

Does anyone know what companies have removable motors in their hard drives?

[@d3lt4X]

I have this model 1:49 , no way to take off the metal disk, it's like there's a hidden screen

[@Dtr146]

ok thats cool but imma need a potentiometer cuz i want a 7200 rpm fan just to see if it works. then imma take a sas drive and make a blowymatron

[@alchemy1]

What is a 12 volt transformer? It is best to simply say what are you supplying to the motor with exactly. 12 V AC, 12 V DC or...… ?

[@hyperion112]

It would provide 12v ac at 60hz in the US

[@alchemy1]

@@hyperion112 I can't even begin to describe how I feel about choice of words used, especially in science where word accuracy is more critical than any other area. Here for instance when I hear the word transformer, it instantly and subconsciously to me it implies going high, going up. To transform. It is how it is used in everyday language. Imagine telling that something has transformed. That person has definitely experience some sort of transformation. he seems much more disciplined etc. But in science it is an outrage. And I have no desire to bore you with writing a long a narrative. Just one more for the road. Particle spin, spin up, spin down. Big baloney bullshit.

[@frankchang436]

can i make it auto runing?

[@rreekkddaa]

Czemu nie pokazałeś jak lutujesz przewody.

[@-AnyWho]

i don't get it ... why is other sites using a 30a ESC brushless motor speed controller if all you did was hook up 12 volts to two of the terminals? i only know enough about electronics to get my feet wet so I'm guessing I'm missing something here ...

[@jakariasbulldozer9086]

because by this mechanism you will not gain speed.. not gain torque..

[@jakariasbulldozer9086]

kzbin.info/www/bejne/pGLLZZ2rbNuEq68&lc=z22ktzeyrvabgjmzo04t1aokgzlox3gnkzscyogc0c5ork0h00410

[@euvo_sound]

It can spin by itself by using a Capacitor in every wire or can use its original harddrive's ESC.Powering the PC tower harddrive in 12v makes it spin by itself without the help of the computer's processor.

[@premkiran8137]

It will not run in 7200 RPM ?

[@JSuparman]

Thanks You Sir! You did it in KISS teaching principle.

[@pintupradhan3862]

Why it not start automatic?

[@lenny108]

but why does the motor start within the hard drive without an initial push?

[@ludicscience]

because it uses an electronic driver

[@sugengriawan6586]

Tanya om, kenapa sambungan kabel ke motor tidak diperlihatkan ? Karena banyak video yang tricky, jangan-jangan dibelakang nya sudah diganti motor ?!? Setelah disambung kabel, jangan hanya bagian muka yang diperlihatkan. Tunjukan bagian belakangnya untuk meyakinkan bahwa motor masih tetap aslinya . Terimakasih. Salam semangat. Saya senang dengan video2 LS.

[@djuradjstankovic6337]

3:29 and if u connect all 3 on speed controller u don't have to give him,, addicional spped" to start it

[@gerardzi7930]

Great video re-use part and misc components is the future of humanity

[@ludicscience]

thanks!

[@ProHackHD]

Motor DC input voltage AC very fun.

[@hiperborea4997]

It is not dc motor you can make it to do using controller original or make it you probably don't know nothing about ac dc current any thing you can make it work using electromagnetic induction and pulse

[@leandrofalugi]

Existe alguna manera de ajustar la frecuencia del transformador?. Se me ocurre que sería útil para una base giratoria.

[@diegoalmanzatv812]

You’ll ned a motor controler

[@normannormiemates4844]

How does the hard drive start the motor off? Can't you use that system to get the motor going without using your fingers?

[@mattstroker]

The AC somehow acts like the pulse?

[@bernardinomoreira2284]

How much volts of energy?

[@nagato8152]

*12volts suitable*

[@CrustyBiker]

I worked out the awkwardness of using a brushless without dc when I connected a pin then the shaft rotated slightly then stopped, then I put power to another pin and it shifted so.i could only move the motor 1 increment at a time, I couldn't think of a solution so I gave up on it lol

[@ammarazam9875]

use capistr wuth 3 terminal motor and it will increase speed and will do self start

[@devd430]

How much require voltage to run

[@bitrusfull]

That's very helpful 👍Thanks. 😊

[@postualin6551]

This metod îs very good to test the motors

[@ajeetvaddar4423]

I don't have any esc, transister ,transformer nothing can I start my hard drive motor of 4 terminal

[@raymondpietersen3176]

Use a capacitor whit one connected wire and the not connected wire and it will start on it's own!

[@raymondpietersen3176]

Then you will have a fase shift do to use of the capacitor.

[@CrazyPlayer-pf2hv]

AC??? Hmmm but on the drive sticker itself its this DC symbol with the dotted line and the non dotted line.

[@kev4241]

be nice if there was a way to reuse the controller board, perhaps in a maintenance mode. ah well. lots of nice parts in these

[@ChristPrimus]

If it runs on only 50HZ frequency, that means it have only 50 rotations/second

[@danieldendi6825]

When I'm connecting my motor the same way it take's hi temp and no roraty

[@lazyh-online4839]

Shouldn't have that problem, as long as you give it a spin you should be fine.

[@duly-duly2559]

How to mach volts dc

[@rkryukov996]

0:56 that's the HDD for the XBOX original

[@olimpather]

Oh god...

[@jjhack3r]

I'm pretty sure they all were.

[@janosvarga4709]

60 HZ = 60 RMP? HDD MOTOR 5000-7800 RMP its bad driver

[@lazyh-online4839]

That's not how it works. First of all hz is per second and rpm is per minute. Second you have a number of poles inside the bldc that you need to divide the hz by. So basically if you have a 4 pole hdd motor, at 60hz you'll have 60hz*60rps/4p which makes 900 rpm

[@nw7696]

Very nice and useful information, thanks very much!

[@evil17]

Thanks, good vid as usual, really informative. Could you show how to set up a simple driver circuit/s to drive these motors. TF sharing.

[@rsharma3602]

kzbin.info/www/bejne/ipa9iYt6pKp6q8U

[@neckbreak2840]

Can tell how to remove laptop HDD motor ?

[@tourtool5219]

Nice video .. I just loved the unscrew's sound 😁

[@brazilcreative1063]

Use a 30amp 30A brusheless esc.

[@jjhack3r]

Those are the 3 kinds of hard drives that I've only seen in an original xbox

[@Julio-Cesar777]

Es lo mismo que tú otro canal verdad???

[@davidbolha]

@ 01:23 - 01:40 kzbin.info/www/bejne/e4OnhqmZg72hipo (make sure you use timestamp references in either description part or in the post there for easy navigation) 😉

[@fattoyosh2023]

I tried spinning motor but it stop by it self

[@MrTamthangia]

Motor heats very fast

[@DupczacyBawol]

And I thought. Useless without a driver.

[@jamesharrell4360]

Basically yes... Kinda like the Tesla

[@davidbolha]

Those HDDs could be sold as tech antiques (for a lot of money) many decades later (on eBay). 🤔😉

[@ДедушкаВалера-ж7ь]

ага, а у меня ещё 5-дюймовый есть. года, этак,198х. от 286-й ещё машины. было 2. один разобрал, чтобы студентам показывать как оно там внутри "винта" крутится. и крутилось и головка туда-сюда щёлкала!!! ...и пара мышек есть ещё с широким COM-интерфейсом(?) или это LPT(?), т.е. ещё до изобретения PS/2 - выбросить не могу, рука не подымается. сейчас по памяти не помню их производителя и тип - что-то английское. кажись, две короны на лейбле изображены... *** зы: "винт" - это сленг от "HDD - винчестер" зызы:: здоровья крепкого всем, мира, счастья, любви и удачи!!!

[@davidbolha]

@@ДедушкаВалера-ж7ь 🤔😏👍👌

[@OFFRoadWheels]

There work as a rotary encoder.

[@RandomNooby]

making a simple centrifuge with this right now, thankyou

[@jamesharrell4360]

Also.. glue the magnet to motor to make a stirbar spinner

[@vidanatural_oficial]

why did not you use diodes to get a pulse dc power supply to feed the motor? and feed 2 wires with 50 hz pulse supply, and anothers diodes as free weels protetions?

[@TheKetsa]

Use an ESC