Simple BLDC Motor Diver Hard Drive ESC

[@two_number_nines]

Finally something for people to easily play around. I'm tired of everyone else copying the same arduino project with e-bay buckets of parts.

[@SeanBZA]

Starting can be done using a separate circuit, that will delay on power on, and then deliver a pulse to the one gate via a diode, to turn on that transistor hard briefly. Should start then. Circuit will be simple, one RC delay that holds a transistor on while charging, and then the collector is used with a coupling capacitor to the diode to apply the pulse to turn the mosfet on. Transistor needs a diode anti parallel between base and emitter, and a pull up resistor of around 4k7 for collector, and 0.1uf should work to couple the pulse through to the mosfet after the 1N4148 diode, probably with a 10M resistor across the capacitors to bleed off the charge on power off. Capacitor for delay probably around 10uF in series with 10k resistor as starting point. Got plenty of slightly used hard drive motors, and same for salvaged mosfets, should build up one and try it out to spin them up.

[@scose]

hard disks are so well balanced!

[@gerarddugas6224]

IT BECAME CLEAR TO ME EARLY ON TO WATCH LUDIC SCIENCE AND SOLVE PROBLEMS BY ENGINEERING METHODS SO PROFESSIONALY SHOWN.

[@Team_Reaper.]

Can you make 3 wire I know it's not that simple

[@garyhenthorne29461]

If you remove the diodes the noise will go away. All you need are resistors, and with the correct resistance auto start happens. I have been using a single phase version in my experiments for many years and I figured someone would post sooner of later. My resistances are around 1.25, 1k, 750, 500 ohm and they depend on the coil and diode guts. Oh, and one more thing, Three phase is fast and everything but it is only a third of single phase at triple the voltage.

[@MoriciMorici]

Can you make a IGBT BLDC 3 phase Motor Driver ? I wonder why companies want 10K for a 350 KW BLDC motor controller?

[@DieGo-nl9il]

Es necesario dar ese impulso al motor para que arranque?

[@TechnoW1zard]

Very nice! I have some old hard drive motors and always wanted to make a driver for them, now I can. Thank you!

[@davidmon7167]

It's looks like a Flux condensator of a back to the future movie. Hahaha.

[@jjhack3r]

Cough cough capacitor cough cough

[@elgato2642]

I have one that has only 3 wires. Is there a way to make a 3 wire hard drive motor work. Thanks

[@QF2653]

Could you use capacitors for a phase shift to run it.?

[@ПавелПрекрати]

Ery nice. What about consumption in first try, its around 0.7A?

[@QF2653]

Is it speed controlled by voltage then?

[@icebluscorpion]

Does this also work with delta configuration?

[@scienceguide3880]

This circuit can ONLY run motor have stator spin. If you want rotor spin type work, connect the diode parallel resistor

[@user-said9165]

бо, всё чётко и ясно. Не зная Ваш язык я всё понял. Ешё раз Вам большое спасибо👍

[@hendritresnahadi4146]

If we put 2, 3, 4 coil to circuit not sequence, what posible happen sir? Tx u

[@brizaca]

está súper bien el circuito lo voy a intentar para mis discos duros, muchas gracias por compartir

[@prpolidoro]

What about brushless with 3 contacts (I believe 2 coins) ?

[@csn_-7662]

It's not error with that picks- it's back emf which you can collect.

[@ludicscience]

👌

[@vinayrao863]

I tried for a month but no result. I repair computer motherboard yet I could not rotate any bldc motor with this circuit

[@jjhack3r]

I literally daydreamed of that exact circuit but never got around to testing if it would work or not... good to know it does lol

[@thetrue1636]

why you push by hand??

[@imnotbeluga007]

No microcontroller to get the motor phases changing - he has to spin it over to create a small voltage that the circuit notices and then it switches over to keep the cycle going. Once that happens, the other coil works as an generator, which powers another MOSFET which moves the connection over. Some motors start on their own, but many smaller ones don't. It all depends on unprocessed induced voltages. GreatScott made a good video about this topic.

[@rickwebster3525]

Can you do a video on doing a ebike

[@panuwutpatchaiwutthikun4193]

How connect delta

[@DIYwithBatteries]

Nice schematic 👍

[@jaybalgobind123]

Thank you very much for kindly sharing your experiments and a host knowledge, which are extremely helpful.!🤗🙏👍❤

[@ludicscience]

Thanks

[@oildalestar]

I used a transformer to run a hard drive motor you still have to start it by hand much simpler to do

[@Chillired]

You Have good Knowledge super clear explain

[@UmbreWolf]

I was wondering when someone was gonna get smrt enough and build this circuit on YT. as simple as it gets really. Everyone keeps trying using a micro or some shit, when its not really required

[@SineEyed]

This guy did a similar video on these like 5 years ago. Where you been?..

[@UmbreWolf]

@@SineEyed similair but not exact, where you been?

[@SineEyed]

@@UmbreWolf oh, here and there - you know how it is..

[@elektronikhobim6903]

Good job bro.thanks.

[@MrWasim100100]

very nice

[@T2D.SteveArcs]

😎👍

[@nayanjagirdar8408]

👌👍