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When you change the field winding voltage, you change the field strength, and therefore the KV of the motor (KV is RPMs per volt at the armature). A low field winding voltage results in a high KV, which means the motor will turn very fast when the armature is operated at 12 volts, but there will be less torque available at the drive shaft. If you use a higher voltage on your field windings, you reduce the KV of the motor, so it will turn at a lower RPM but with greater torque. You can think of the field winding voltage as acting a lot like an adjustable gear ratio for the motor. If you were to use this on a go kart or something, then gradually reducing the voltage to the field as you accelerate would allow you to gain higher top speeds, without sacrificing the amount of torque available for accelerating from a stop or at low speed

Wow, I'm stunned at how long that capacitor can hold a charge and how much current it puts out, awesome cap.

Thumbs up for no music. Who was just waiting to see that clip fly off? Cheers

I was just telling my nephew how a alternator is nothing more than a BLDC and now I can show him! Thanks Mr. Electron!

ola amigo eu sou do Brasil, e gosto muito dos seus videos. Sempre com ideias inovadoras e muito interessante...Parabéns continuo sendo um dos seus inscritos..eu como técnico em eletrônica sempre renovo o meu conhecimento e você faz parte disto...obrigado.

Hi, love your videos, can you actually try to measure the generated togue? Would like to see how much it generates.

Однако: браво! Хорошая тема. Ни когда не задумывался по этому поводу.

Thanks man, that really gives me food for thought.

I must say that i'm impressed by your videos, so far. Good work!

That is a cool science project

Interesting way to connect wires together and the screws on the top of those caps were very loose, too. Invest in some nice side cutters.

Superba lectie de electrotehnica aplicata.

Good idea interesting Can you supply us all the accessories & the instructions how to fixed excluding alternator ? And how much / set

How Mach time you can use it with that combo ? And can you make generator with that setup ?

Hello Mr electric good morning how is your work I love your work I love to no more about the authernato you configure of the authernato, motor of 220v

Theory please so that I can follow the instructions for a try u are superb

At the end its the torque that counts.

Thanks for your video! I'm having questions about Amps versus Volts. Here is High Amps but just 2.7 Volts. Would you get similar results with say 150 Volts and 5 Amps? Than You

Very interesting. I would like to see what kind of working loads it will drive. IE. A circular saw blade, a grinding wheel or even an electric vehicle of some description.

great work dude

Question is what kind of amps would there be under load? Spinning it is one thing but under load thats a different story.

This is really really cool, I have some questions that I would love to contact you about. I'm engineering an electric turbo/supercharger and I want to use supercapacitors and possibly a small alternator, I dont know much about electrical engineering though.

Very nice sir and plz test in load like a water pump or e bike on this alternator motor with this controller

Nice work but have questions if you give load on alternator how many take Ampers? Please can you help me i want use this idea in project please reply and so thanks

An alternator can be used to charge 12volt batteries for home use, just have to attach to a windmill and voltage regulator.

How long can u power the alternator with that size of battery?

You will also find it will speed up if you disconnect the super cap once it's running, see if you can work that out!

Very cool... Would that motor be efficient enough to power a 12 volt alternator and generate electricity at a surplus?

Thanks

Do you need to charge the capacitor? does it charge the capacitor while running from the stator windings?

Nice Work salutes from Guatemala

Can you run appliances with this set up

Any idea how much torque and HP the alternator will develop as a variable speed motor?

In the beginning of the video, if you show the circuit / schematic diagram that would be helpful.

If you haven't already, could you make a video using the 3 phases of the alternator with 3 transformers brought together as 1 3-phase transformer?

Superb work, very nice experiment done

Is this setup viable for ev conversion application on motorscooters? I hope it is.

Would you please put some schematics? Thank you 🙏🏻

Great info, thank you

Are you powering the alternator brushes using the capacitor?

How does rotor voltage effect power output? Does the capacitor discharge? Or is a current induced by the stator?

Hola me interesaría bien como se conecta a la batería o si vende la parte electrónica para su funcionamiento

If i increase the voltage to the field windings, would this setup (without the capacitor) be strong enough to start a Honda G100 2½ hp engine?

thank you ❤

I’m not sure about the role of the super capacitor. It is storing charge, which is what capacitors do, but what is the stored charge doing as it discharges into the motor? One would think any stored charge is dissipated into the amateur windings and once its discharged there’s no more charge left.

que funcion cumple el condensador, que potencia logras con el alternador convertido, cuanto consume ese alternador, que potencia genera, sirve para una moto electrica, ruego tu atencion, saludos desde Argentina

Un brochazo por el alternador antes para limpiarlo y hubiera quedado más chip el video. Cuantas revoluciones puede dar el alternador? Y cuantos Amperios se come funcionando al 50 %

At best the alternator is working as a three phase motor being run off a single phase on DC. It requires 3 rotating magnetic fields to be run as an efficient motor.

Can you bring out the fact with load like e bike etc and endurance too

Awsome vid!! Now how will it behave under load???

I've enjoyed your series on converting an alternator to a motor. I do have a question, How long will this capacitor power the rotor in this motor in a continuous duty cycle? One hour? One day? One week? month? year? indefinitely? If anyone knows the answer to this question please send me a reply to this comment. Thanks again...

congratulations for your job. two questions : how long does the capacitor charge last? to power the rotor can you use the battery that powers the stator?

0:47 yes, you have good scisors, but flame is better to take off isolation from cords

Could you try to start the motor with the supercap discharged and connected, to see if it starts?

Can this setup be used for regeneration also?

can you see an capacitor as a boost for electric motor, i am thinking in a arrange with a capacitor with a switch and then with the motor running turn on the capacitor

Neat, simple idea. I like it. It would make a great science experiment for my kids science class. My question; what is its power? Can it do any useful work or is it simply a demonstration exercise?

Hello If i connect for example a 36V battery pack to the controller and to the alternator. Can i use the same capacitor or do i need to use a different one? Regards

*Big scientists are also working on this type project of capacitor. They trying to use capacitors in place of battery 🔋... Seems in nearest future big inventions going to happen.*

How to wire non center tap alternators for motors? Delco 10 and 12 si dont have center tap wire

that's why some early cars hade engine run one problem's those old alternator hade capacitor's on them,its directly related to magneto ignition,waste spark,dual ignition amd electric car's

Hi! Ok would like to use a small power generator to transform it in 220v...what would be the best way in your opinion? Thanks!

Is it ok if the alternator is operated with 24 v or 36 v

hello from UK. Can you tell me, will the alternator work with 24v battery and 36/48v battery efficiently? or better just at 13v?

Can I charge the 1000 farade super capacitor by using alternator ?

What happen if you put 2 super capacitor in series? Because only one have 2.7 v, if you put two of these together, you make a super capacitor 5.4 v. It's possibile? Is the same like put together 2 batteries?

Does you make any changes in alternator please reply bro

Would a 2000 watt 72-96v controller work better than a 48v1000 or 1500 watt controller, I may use 2 on my bike, of the 1500 watt, with 2 motors, and 64v battery, 16s liion near 4 hp, and the TQ of a 20 hp gas engine, I hope it is enough,

did he give energy 12v dc for charge battery ?

Nice experiment, but motor velocity without loading is meaningless. It would be helpful to post practical load, torque & efficincy data for this rig. Most of your test gear is already in place. Without useful data, the video gives low SNR, unfortunately.

Is it a good combination for making a electric bike

Est-ce que en courant continu, un alternateur peut il démarrer sans contrôleur ? Congo !

But how long will the capacitor last with out being recharged ?

This setup will be great onthese electric cars like tesla etc.. to charge the cells or capacitors.. 😁There will be little to no charging between stops

Love your wire stripping technique !! ;-)

Maybe you could also show the current drain on the capacitor?

The Future for Elektrik Car battery to charg alone

One basic thing: ohm's law. for DC the field (rotor) is a resistor, less voltage = LESS field current! and this is correct, LESS field current = higher speed! Alternator runs at a speed where the voltage it generates = supply voltage (apart from losses). more field mean higher voltage generated so speed drops. If the battery voltage and the generated voltage are the same, what is the current value in a resistor in series with the battery? (i.e. the resistor in the current meter)? This means the voltage on both sides of the meter is the same, so NO current is flowing! But, of course, there are losses so it slows down enough to make the loss current flow.

Can I use it for my bike. is there enough torque. Thank you

Excelente 🇩🇴🇩🇴🇩🇴🇩🇴🇩🇴🌎

If you direct alternator to batteries they can turn???

Very nice vdo sir.uhave to tell us about of used all components.

*This is not brushless,* the rotor uses slip-rings that are still brushed, like all alternators. You are only running two phases of the stator windings with a two-phase controller, on an alternator that is obviously wound Wye with a center ground. This is incredibly inefficient and delivers far less power than using a three-phase controller with the hub-tap open, on a Delta-wound alternator. Alternators are 3-phase, not bi-polar. You also do not need the capacitor, a pair of neodymium magnets on the rotor, or otherwise magnetizing the rotor, will cause it to self-excite once the stator winding is energized and the "field" (rotor) begins to react with it magnetically. Remove the brushes and short the slip rings, give the stator 3-phase power, and you will have a 3-phase constant-torque repulsion-run motor that will behave similarly to a permanent-magnet DC power motor except that torque will remain the same at any speed, but speed will increase with more power applied. Alternators are generally insulated with class H insulation, meaning that they can run up to 180°C (356°F) [This includes ambient temperature, this is an absolute rating], so it's okay to get them a little hot. Just keep in mind that the amperage rating of the alternator is an absolute maximum, and if you are not using 3-phase sine, you will fry it before you hit 100 of those 120 amperes. If you want to convert alternators into motors, you MUST use the largest stator core possible. Look for Japanese luxury cars in the boneyard and find a LONG core, none of the A/C Delco or other American made crap. The Japanese make some of the best alternators for this kind of fun. You might want to pick up a Denso starter motor or three while you are at it, found in many if not most Japanese cars, they are the size of a beer can but deliver up to 7HP for up to 30 seconds (5 min cooldown), but can also be rewired easily for many different combinations. Brushless means that commutation of the rotating field is done externally, as opposed to using a commutator internally with the motor. *Alternators are NOT brushless.*

Would you be able to run an ac generator with the setup using solar power as its quieter than petrol engine? Any reply appreciated?

is it possible to charge the battery and also a 12v1Farad capacitor but also from the same capacitor and battery to excite te alternator to run endles time?

You could turn your car into a gas electric hybrid. Maybe with an alternator/motor, you can supplement 800 to 1200 watts of electrical power converted to mechanical horse power.

Would this make an electric scooter faster or have more torque?

Tem como eu colocar na minha bicicleta elétrica.

hola me gustaria saber como hiso el aparato para cargar el capacitor

How long will the capacitor last before dischaging completely ?

Doesthe super capacitor get recharged While runing? Or does it need to be recharged externally like when you did first time?

Hello I'm so interested in your videos. One question. Can I make a controller to myself homemade and how can I do it???

Does the motor have any torque?

I wonder what the torque is.

Todo los asecsorios donde se compran para poder armar un Alternado o generador de corriente saludos de oaxaca MEXICO

can i use such alternator as wind power generator

You still need a battery to run all of your accessories in your vehicle. No capacitor is going to do that by itself. Something has to first charge that capacitor in order for it to release it's energy. In other words the capacitor has to see a load.

Hi I am following your reuse of alternator. I would like to run a racekart with an alternator. What do you think how much kw can you generator with a 50 A Generator in a conversed mode to motor. What voltage is proposed. 24V ???

Thanks for the video.make a video of overunity, where an alternator and a motor can run without external power source.. producing electricity