Permanent Magnet Alternator (PMA) Build

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  • เผยแพร่เมื่อ 16 มิ.ย. 2024
  • I take a 12v alternator from ebay and try to change it into a Permenant Magnet Alternator (PMA).
  • บันเทิง

ความคิดเห็น • 250

  • @rotory2002
    @rotory2002 2 หลายเดือนก่อน +2

    I am lucky that I just retired from 48 years as a mechanic and the business that I worked at went out of business and told me to keep all the inventory. This includes a bunch of brand new alternators and some are huge. This will be fun to tinker with this summer 😊

    • @DaftOldMan
      @DaftOldMan  2 หลายเดือนก่อน +1

      Good luck in your retirement. Alternators are fun to play with but require more energy to turn than you would guess.

  • @dadsfriendlyrobotcompany
    @dadsfriendlyrobotcompany ปีที่แล้ว +5

    I love how you reused the rotor core!
    I made a 3D printed version that you can watch. I hooked it up to a small esc and put 18V at 3A through it, which showed surprising speed and torque for the power input without much heat generation.

  • @Mir_Nols
    @Mir_Nols ปีที่แล้ว +5

    Fantastyczna lekcja z otwierania pudełka 🤗

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      😁😁😁

    • @jurabielyj
      @jurabielyj ปีที่แล้ว +1

      @@DaftOldMan 😁👋

  • @Redogful
    @Redogful ปีที่แล้ว +6

    Thanks for the great video.
    In order to improve the magnetic field of the rotor, suggestions for improvement are proposed as below.
    The current practice is that the neodymium magnet is completely embedded in holes of the same diameter, causing most of the magnetic "short circuit". If the diameter of the original hole is increased (the gap is required to be 1-2mm), 1/3 of the depth is reserved for fixing the position of the neodymium magnet, then there will be a better result.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +1

      Thank you for commenting. I did not know that.

    • @darcymunro8930
      @darcymunro8930 ปีที่แล้ว +4

      Throw away the diodes pack and solder your wires to the alternator output you will have a AC out put possible 240 ac. Just a suggestion.

  • @greennich777
    @greennich777 2 ปีที่แล้ว +1

    잘봤습니다. 손재주가 아주 좋으시네요. 110A ! ! ! Good job 👍👍👍👍

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      댓글을 남겨주셔서 감사합니다. 최선을 다합니다.

  • @johnwyman6126
    @johnwyman6126 2 ปีที่แล้ว +5

    I think it's much easier to press the rotor apart, separate the halves with the fingers, remove the coil of wire in one piece, replace it with a speaker magnet from a large TV, then reassemble. Essentially replacing the field coil of wire with a permanent magnet.
    This is what the U.S. renewable energy hobbyists did back in the 70s and 80s to make wind generators, and hydropower generators.
    These days there are more efficient designs out there. Motorcycle alternators (Harley Davidson) can get to about 50 amps, and direct drive washing machine motors can go to about one kilowatt. For smaller ones take a look at the radio-control hobbyists market.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      I did try to press the rotor apart later. It took over 5 tons of pressure and the spindle squashed like it was made of plastic.
      I cannot get a Harley davidson alternator or a direct drive washing machine motor easily in UK.

    • @johnwyman6126
      @johnwyman6126 2 ปีที่แล้ว

      @@DaftOldMan I'm sorry it squashed like plastic. My experience is more with Delco and Motorcraft brands.
      It's my understanding that Fisher and Paykel used the larger brushless motors in the older top-load washing machines that were available in Europe, not sure exactly which parts of Europe though. The newer style front loader washers in the past 15 or 20 years have them, at least on this side of the pond. We can get them from used appliance stores that have some parts machines out back.
      Hope this helps, good luck with your projects.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      @@johnwyman6126 Thanks for commenting John. Here in UK top loading washing machines are like hens teeth.
      In recent years some washing machines have arrived with direct drive motors but even as junk, these are very expensive when an alternator is fairly cheap. I am slowly making progress with my experiments but cannot get the results that other youtubers can get.

    • @user-nd2td4tv6g
      @user-nd2td4tv6g ปีที่แล้ว

      @@DaftOldMan
      Если ты заметил, то на левой половинке ротора каждый "зуб" имеет свой однотипный полюс, а на правой половинке ротора каждый "зуб" имеет совершенно другой полюс и это не противоречит логике и законам физики но, есть и другой метод установки магнитов, который показан в другом видео, где на одну сторону секции ротора, вместо отрезанных зубьев, приклеиваются прямоугольные магниты насильно соединённые одноименными полюсами, а на вторую секцию ротора устанавливают магниты точно так же, только с развернутыми полюсами один с другим и теперь каждая секция будет иметь свой полюс, только конструктивно совершенно отличается от показанного в этом видео. Если найду ссылку, то приложу к описанию.
      th-cam.com/video/thvA4bQ2KHs/w-d-xo.html
      В конце этог видео будет часть оригинального видео и желательно просмотреть всё видео целиком, чтобы понять суть своих "ошибок и проб" хотя, схемы подключения генератора и двигателя могут быть разными.
      Обратите внимание, что в таком варианте автор не избавляется от обмотки якоря, хотя она и не используется в схеме подключения 3-ох фазного двигателя.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@user-nd2td4tv6g Спасибо. Я видел это видео. Изогнутые магниты - очень хорошая идея. Я не знаю, где купить такие магниты. Я думаю, что этот генератор будет производить энергию, НО нет такой вещи, как вечный двигатель. Двигатель никогда не может управлять генератором переменного тока и использовать выход генератора переменного тока для привода двигателя. Это невозможно, потому что лучшие электродвигатели и генераторы переменного тока имеют КПД около 70%, поэтому двигатель теряет 30% электроэнергии, а генератор теряет 30% мощности двигателя.

  • @christopherleubner6633
    @christopherleubner6633 ปีที่แล้ว +2

    You can make it self exciting by putting a few small rare earth magnets on the tips of the armature assembly and sealing in with epoxy. Make sure the polarization matches when the armature is energized. It will generate electricity from the stator that can be fed back into the armature so it can generate lots of usable power. Can easily power one like that with a a modified excercize bike or similar. Hoverboard or variable frequency washing machine motors make great low speed alternators but you need a means of transforming the higher voltage to usable DC. Output from these is about 28V and 370v respectively. 😲🤓😁❤

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +2

      Thank you for commenting. I have been thinking of putting magnets on my second alternator to make it self exciting.

  • @joshuathomas3230
    @joshuathomas3230 ปีที่แล้ว

    Tolles Video! DANKE dafür!

  • @markkopieczek5882
    @markkopieczek5882 ปีที่แล้ว

    Explanations about what is being done, and why, would be very helpful!

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      If you watch the other videos in this series it will make more sense

  • @bartdepauw1156
    @bartdepauw1156 2 ปีที่แล้ว +2

    Generated voltage is also RPM dependent. You need to take into account your application RPM and the targeted voltage at that RPM

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Thank you for commenting. The alternator is rate 12v and 110 amps so I was hoping for at least 12v and a few amps even at cordless drill speed. I will keep experimenting.

    • @zoranniksic79
      @zoranniksic79 ปีที่แล้ว

      Prevod na srpki

  • @vukasincmiljanic9776
    @vukasincmiljanic9776 2 ปีที่แล้ว +2

    you have to make a rotor from permanent magnets the width you see and calculate with the stator, count how many poles the stator has divided by three and get the pole width on the rotor, then you get the correct magnetic field over each of the three windings, what you created is very inefficient because you made permanent magnets that are too small and when they move over the windings then it happens that at one point you have on the same winding and at the same end of the winding and the north and south poles at the same time, so the current induced in the winding is neutralized and you get only a little current and voltage. Another thing, the poles on the rotor are conical, which is the reason to reduce the jerk when turning the rotor to reduce vibration and at the same time get a smooth transition from the north to the south pole, you can see if you have an oscilloscope. Even the factory alternator is inefficient precisely because the magnetic field of the rotor does not intersect the windings at an angle of 90 ° but on the one hand a larger and on the other hand a smaller angle, you can measure it on the rotor poles by measuring the slope of the pole
    you have to make a rotor from permanent magnets the width you see and calculate with the stator, count how many poles the stator has divided by three and get the pole width on the rotor, then you get the correct magnetic field over each of the three windings, what you created is very inefficient because you made permanent magnets that are too small and when they move over the windings then it happens that at one point you have on the same winding and at the same end of the winding and the north and south poles at the same time, so the current induced in the winding is neutralized and you get only a little current and voltage.
    Another thing, the poles on the rotor are conical, which is the reason to reduce the jerk when turning the rotor to reduce vibration and at the same time get a smooth transition from the north to the south pole, you can see if you have an oscilloscope.
    Even the factory alternator is inefficient precisely because the magnetic field of the rotor does not intersect the windings at an angle of 90 ° but on the one hand a larger and on the other hand a smaller angle, you can measure it on the rotor poles by measuring the slope of the pole

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Thank you. Your comments are very helpfull. Have you watched my other experiments with the new rotor?

    • @prayoonboonrueng2943
      @prayoonboonrueng2943 ปีที่แล้ว

      ขอบคุณในคำแนะนำนี้ฉันอยากให้คุณให้ความรู้นี้เพิ่มเติมอีกได้มั้ยครับ ฉันอยากได้ความรู้เรื่องนี้มาใช้ประดิษสิงนี้ไว้ใช้งานในป่าที่ไม่มีไฟฟ้าใช้งาน
      ขอบคุณอย่างสูงถ้าคุณเมตตา

  • @littlef1962tlf
    @littlef1962tlf 2 ปีที่แล้ว +5

    La razón por la que no tuvo el resultado deseado fué el haber embutido los imanes en el metal, el metal actúa como un blindaje magnético polarizado con el campo contrario anulando así la mayor parte de la fuerza magnética. Yo estoy haciendo el mismo proyecto pero cortando por completo las piezas de hierro y sustituyendolas por barras de imán de neodimio.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +1

      Gracias. Mira mis otros videos y verás que lo intenté.

    • @sigfredocamara5312
      @sigfredocamara5312 ปีที่แล้ว

      Interesante opinión.
      Saludos, por favor tengo una duda sobre generadores de energía. me refiero a los generadores que funcionan a base de quemar combustible.
      En relación a ello, me gustaría saber cómo lo consiguen exactamente? pues soy un novato y hasta ahora sé que para generar energía eléctrica, se necesita imán y bobina, pero ¿Cómo se magnetiza los polos del rotor de un generador sin una batería ni nada que inicie la generación de AC en los embobinados del estator?

    • @user-td8jv6iw4n
      @user-td8jv6iw4n ปีที่แล้ว

      احسنت اخي الكريم تحية من العراق

    • @Teknopottu
      @Teknopottu ปีที่แล้ว

      @@sigfredocamara5312 In this case the permanent magnets are replacing the electromagnet that need power to excite.

  • @Teknopottu
    @Teknopottu ปีที่แล้ว +5

    Hi. A good video you made. Everybody makes mistakes but not everybody shows them and helps other people to learn.
    Did you measure the amps produced? Even small voltage can be usable if there is enough amps.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thanks for watching. If you watch my other PMA videos you will see what I learned.

  • @user-pz6cx8zf2y
    @user-pz6cx8zf2y 2 ปีที่แล้ว +16

    You should have tested the alternator before the modification in order to verify first that it has no problems. Then you should proceed with what you already did. Now you need to verify if all the phases are healthy and then do the same for the three phase bridge rectifier. It is important to go step by step now. In my opinion, first you should do a test without the rectifier bridge connected and see if you have equal voltages per each phase. Under no load conditions, no matter the magnetic field strength, you should get much more elevated voltage per each phase than these 2,5V you measured. If this happens, your diode bridge is defective. This can also be easily identified by using your multimeter in the diode testing function and testing each one of the six diodes of the bridge separately. Keep in mind as well that you must solder the three phase windings. Simply pressing the wires in their connections is not the proper way to secure good contact of the wires included therein...Nice try anyway! !

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Thank you for your comment which is very helpful. I will test the bridge rectifier next and the individual diodes.

    • @georgenastase6822
      @georgenastase6822 ปีที่แล้ว

      Ok

    • @silviobracale6733
      @silviobracale6733 ปีที่แล้ว

      Mi sono appena svegliato e il sonno mi ha portato consigli, è incredibile.
      Ho capito perché non produce molta elettricità, potrebbe essere perché non hai isolato i magneti sul rotore. Facendo così tutto il rotore è magnetico , e non va bene perché credo che tu abbia un campo magnetico unico e non alternato.
      Che ne dici?

    • @user-nd2td4tv6g
      @user-nd2td4tv6g ปีที่แล้ว +1

      @@silviobracale6733
      Если ты заметил, то на левой половинке ротора каждый "зуб" имеет свой однотипный полюс, а на правой половинке ротора каждый "зуб" имеет совершенно другой полюс и это не противоречит логике и законам физики но, есть и другой метод установки магнитов, который показан в другом видео, где на одну сторону секции ротора, вместо отрезанных зубьев, приклеиваются прямоугольные магниты насильно соединённые одноименными полюсами, а на вторую секцию ротора устанавливают магниты точно так же, только с развернутыми полюсами один с другим и теперь каждая секция будет иметь свой полюс, только конструктивно совершенно отличается от показанного в этом видео. Если найду ссылку, то приложу к описанию.
      th-cam.com/video/thvA4bQ2KHs/w-d-xo.html
      Обратите внимание, что в таком варианте автор не избавляется от обмотки якоря, хотя она и не используется в схеме подключения 3-ох фазного двигателя.

    • @user-nd2td4tv6g
      @user-nd2td4tv6g ปีที่แล้ว

      @@DaftOldMan
      Я не публикую свой комментарий на первой странице, чтобы его не убрали, а оставил внизу в этой ветке и специально дублирую для автора видео:
      Если ты заметил, то на левой половинке ротора каждый "зуб" имеет свой однотипный полюс, а на правой половинке ротора каждый "зуб" имеет совершенно другой полюс и это не противоречит логике и законам физики но, есть и другой метод установки магнитов, который показан в другом видео, где на одну сторону секции ротора, вместо отрезанных зубьев, приклеиваются прямоугольные магниты насильно соединённые одноименными полюсами, а на вторую секцию ротора устанавливают магниты точно так же, только с развернутыми полюсами один с другим и теперь каждая секция будет иметь свой полюс, только конструктивно совершенно отличается от показанного в этом видео. Если найду ссылку, то приложу к описанию.
      th-cam.com/video/thvA4bQ2KHs/w-d-xo.html
      Видео смотреть до конца, там будет часть оригинального видео.
      Обратите внимание, что в таком варианте автор не избавляется от обмотки якоря, хотя она и не используется в схеме подключения 3-ох фазного двигателя через конденсатор.

  • @yusifsuleiman5502
    @yusifsuleiman5502 ปีที่แล้ว

    Thank you for this wonderful information.
    To my own thoughts, since this alternator produces 12v while working on a car to charge the car battery, why adding magnet to it.
    I need more light, please
    Please, keep us informed on any further progress.
    Greetings from Nigeria.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thank you for watching the video. If you watch the other video parts you will see what I learned.

  • @frankchandler8005
    @frankchandler8005 ปีที่แล้ว +1

    remove rotor poles and put in big mags epoxy and refit together but will need a lot of strength to over come cogging but much higher voltage will be had.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Have a look at my other videos.

  • @vtwoli
    @vtwoli 2 ปีที่แล้ว +4

    The most likely reason could be that you have some shorted diodes.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      You could be correct. Have a look at attempt 2. video

  • @littlef1962tlf
    @littlef1962tlf 2 ปีที่แล้ว +2

    Los altoparlantes de los televisores CRT, poseían un casquete metálico para anular el magnetismo de la parte externa del imán y así no afectar la pantalla... Pues en su proyecto pasó lo mismo al empotrar los imanes.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Gracias. No sabía eso.

  • @marcelchwistek8056
    @marcelchwistek8056 2 ปีที่แล้ว +2

    I think you set the multimeter to measure in hectovolts (hV) which is 100 volts.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      No. It is set to 0 - 20v DC

    • @marcelchwistek8056
      @marcelchwistek8056 2 ปีที่แล้ว

      Maybe that was a bad idea to remove the copper winding from the rotor

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      @@marcelchwistek8056 Yes you could leave the copper winding in place. Copper has no effect when you use magnets.

  • @TheEmbeddedHobbyist
    @TheEmbeddedHobbyist 2 ปีที่แล้ว +4

    A lot of work for such a small output? Looks like small magnets can't match the field produced by the electromagnet. There's a few channels who would have connected up an LED and called it a win.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Yes I have noticed that a few youtube channels do stuff on video that I cannot replicate because it doesn't work.
      You are spot on with the magnets. They feel very strong but must be very weak compared to the original electromagnetic field.

  • @vladimirssubotins5998
    @vladimirssubotins5998 ปีที่แล้ว

    Судя по навыкам ,рукожопства никто не отменял .И 10 жизней у человека.

  • @jbs46
    @jbs46 ปีที่แล้ว

    Однозначно лайк и подписка!!! Спасибо

  • @arturomarroquin4683
    @arturomarroquin4683 ปีที่แล้ว

    Bien jalapeño mi compa para usar la herramienta

  • @MechanicForGMCCars
    @MechanicForGMCCars 2 ปีที่แล้ว

    Hello sir did you ever try to use alternator windings with those magnets? And what effects you get doing so?
    I mean is there posibility that this singel winding on the rotor can produce curent as well ? Wuld that work?
    I have problem because off back charge me car likes to run at 300-500 rpm but me alternator is just back charging so I need somthing to charge me baterrys at low speeds what voltage regulators you advise to use with such set up?
    Im not happy with me curent voltage regulator I wuld like to bypass some voltage directly to me ignition coil and bypass wire harnest.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      With some alternators you can connect the positive slip ring brush to 12v and force charging at low rpm. You will need a switch so that you only use it when the switch is on.

  • @vladimirssubotins5998
    @vladimirssubotins5998 ปีที่แล้ว

    Да и результат ,, отличный"

  • @MechanicForGMCCars
    @MechanicForGMCCars 2 ปีที่แล้ว

    Hello sir how does that magnet alternator behave at low rpm's ?
    Does it need some extention voltage regulator for baterrys? And what voltage regulator you preferre to use?

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      At low rpm the voltage is poor. You need a special voltage regulator with a PMA.

  • @koonjulougrasen4432
    @koonjulougrasen4432 ปีที่แล้ว

    Hello Sir, I think the coils in the stator may be short or the diodes are bad. Because I can see strong magnet brakes which is a good thing.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Unfortunately it is not strong magnet braking. It is magnets attracting the stator steel body. Than you for commenting.

    • @koonjulougrasen4432
      @koonjulougrasen4432 ปีที่แล้ว

      @@DaftOldMan I am Vikash from Mauritius. I think that you should use large rectangular bend shape N50 neodium magnets ,so that large enough magnetic flux induces in the coils.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@koonjulougrasen4432 I think you are correct but those magnets cost much money.

  • @bulla8631
    @bulla8631 10 หลายเดือนก่อน

    3 faces wired if you connect a Diode to it wire you get a DC outs off it the - it on its body

  • @jregamey
    @jregamey 2 ปีที่แล้ว

    I love the speaker magnant way of doing it!! Check it out

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      I do not know what that is. I will check it out. I really want the alternator to work.

  • @marianpanait7926
    @marianpanait7926 2 ปีที่แล้ว

    Felicita for all

  • @grzegorzs6305
    @grzegorzs6305 ปีที่แล้ว

    To jest właśnie cała prawda o fake przeróbkach alternatora, których na YouTub-ie jest masa. Ten film pokazuje jaki rzeczywisty efekt. Dziękuję i pozdrawiam autora.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Dziękuję za komentarz. Dlatego nakręciłem wideo. Wiele filmów na youtube nie mówi prawdy

    • @kaktus7283
      @kaktus7283 ปีที่แล้ว

      @@DaftOldMan wszystkie

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@kaktus7283 Dziękuję za komentarz. Mówię prawdę z moich eksperymentów.

  • @sorindumitru6101
    @sorindumitru6101 ปีที่แล้ว

    Ce tensiune (V) scoate la ieșire 3x ?
    Gracias !

  • @Civildiscussions
    @Civildiscussions ปีที่แล้ว +1

    Love your videos
    Why are people saying you need to regulate the voltage? Wouldn’t you want to take everything out besides the 3 wires originally? Isn’t the idea to make more voltage? Why regulate it? Isn’t a 12v alternator capable of putting out more like 40+?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +1

      Thanks for commenting. You can make any voltage as long as the wiring allows it. Max power is about 1500W so that could be 1500v at 1amp, 150v at 10amp, 15v at 100amp. Once you convert to PMA , you don't have a regualtor.

    • @Civildiscussions
      @Civildiscussions ปีที่แล้ว

      @@DaftOldMan thank you for explaining, since apparently I hear alternators are good for 100 amp? What would make the amperage change? Is it the rpm of the rotor? It seems like that means I can almost reach max output at 12v? If converting an alternator to a motor.. if I wanted to change my alternator to produce more than what it is limited to, what is the best way? I have 3 for a project and can’t figure out the best way haha

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@Civildiscussions I think you missunderstand amps. The amps are what the load can pull from the alternator. So a 1500w load will attempt to pull 1500W. If the voltage is fixed to 15v the load will try to pull 100 amps. So a load can pull roughly 80 to 120 amps from the avaerage car alternator. So if you turn on every electrical device in your car the engine rpm will increase to allow for the load on the alternator but if you hace a massive stereo amplifier fitted you may pull too much amps and the load on the alternator will be so great the engine rpm will slow. The alternator wires will overheat and melt. Motors and alternators are roughly the same thing so a 1500W alternator can work as a 1500W motor but you have to remember the alternator was not designed to be a motor. So if you want a 1500W motor, you should buy one. An alternator is not really a suitable motor due to the design.

    • @Civildiscussions
      @Civildiscussions ปีที่แล้ว

      @@DaftOldMan ah okay thank you many people have said an alternator is a good motor so it’s confusing

  • @basharaljorany6809
    @basharaljorany6809 ปีที่แล้ว

    Good evening, how many amps does the dynamo output when it is running?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      check the other videos in this series

  • @cherilynnfisher5658
    @cherilynnfisher5658 ปีที่แล้ว

    Interesting!

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +1

      Thanks for commenting.

  • @dwaynebaines3108
    @dwaynebaines3108 ปีที่แล้ว

    That's bc you took all the copper conductors out in the beginning. You need that to create current.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thanks for commenting. Why would a PMA need to create current in the rotor?

  • @nahahvarietychannel3293
    @nahahvarietychannel3293 ปีที่แล้ว

    If we want the speed spin at 300 RPM to produce 12V / 100w what should we do?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +1

      I do not think you will get 12v at 300 rpm. Alternators work best at high rpm like 3000 rpm.

  • @tiredironrepair
    @tiredironrepair 2 ปีที่แล้ว +1

    I think you should have left the slip rings and used the power from the permanent magnets to excite the field coils. Would definitely need a regulator though or the voltage increase when the field powers up might go vertical til something smoked.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +3

      I was told that the voltage regulator does not work if you use magnets on the rotor.

    • @tiredironrepair
      @tiredironrepair 2 ปีที่แล้ว

      @@DaftOldMan I think that's correct, there may be no way to regulate the magnetic field of permanent magnets short of a completely custom built armature that could move the magnets closer and farther to and from the windings, and that sounds complicated to me.

  • @erikdacollina
    @erikdacollina 2 ปีที่แล้ว

    Nice,👏

  • @asranaimi1088
    @asranaimi1088 ปีที่แล้ว

    هل من الممكن أن أجد مولد كهرباءي للسيارات او حتى الشاحنات ب 12 V ولاكن بشدة تيار قوي تصل الى 150A وما فوق ؟

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      It is possible to buy a 12v alternator with 320 amps and a 24v alternator with 500 amps.

  • @halitgashi111
    @halitgashi111 ปีที่แล้ว +2

    why you removing wire from rotor?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      With magnets you do not need the wire on the rotor.

  • @user-td8jv6iw4n
    @user-td8jv6iw4n ปีที่แล้ว +1

    عمل قمة الروعة فعلن تحية من العراق

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      شكرا لك على التعليق

    • @user-td8jv6iw4n
      @user-td8jv6iw4n ปีที่แล้ว

      @@DaftOldMan هل فعلن نستطيع أن نعمل توليد الكهرباء الذاتي من دينمة السيارة وماطور كهرباء حصان أو نصف حصان ومحاولة كهرباء من الفوليتية إلى كهرباء انبير

  • @user-jh9tf5ze3e
    @user-jh9tf5ze3e 4 หลายเดือนก่อน

    Not sure if anyone else commented on this, but shouldn't your multimeter be set for AC instead of DC? It is an alternator. Just curious.

    • @user-jh9tf5ze3e
      @user-jh9tf5ze3e 4 หลายเดือนก่อน

      Or are you taking voltage readings from the diodes? Sorry if you showed this, i watched the video again and didn't see that. Just curious. And thanks for the video, it was great.

    • @DaftOldMan
      @DaftOldMan  4 หลายเดือนก่อน

      Alternators have diodes to convert AC to DC so the output is DC.

  • @a.h.m.o
    @a.h.m.o ปีที่แล้ว

    What type of magnet is used... Is it N35 or N51

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      They were sold to me as N52.

  • @Angie11123
    @Angie11123 ปีที่แล้ว

    Чтобы не вылетели магниты надо термоусадочной пленкой накрыть из пластиковых бутылок

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Спасибо за комментарий. Суперклей хорошо держит магниты в отверстиях.

    • @Angie11123
      @Angie11123 ปีที่แล้ว

      Поверьте мне они вылетают

    • @Angie11123
      @Angie11123 ปีที่แล้ว

      И разрушают генератор рассыпаясь сами

  • @ceshortvideo4787
    @ceshortvideo4787 ปีที่แล้ว

    which grade magnet should be used ?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      I used N52 from China

  • @Protosaki
    @Protosaki ปีที่แล้ว

    sorry it didn't work like you wanted, I'd put magnets on the outside also just to see if it produced more power. Nothing to lose.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว +1

      Thanks for commenting. I have tried lots of modifications in my other videos.

  • @user-rp6hv8yc6s
    @user-rp6hv8yc6s 2 ปีที่แล้ว

    12 magnet 30/10/5mm 👍

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +1

      Thank you. That is what I did for next tests. only 30/10/3mm

  • @marcelogalvaodemoura8963
    @marcelogalvaodemoura8963 ปีที่แล้ว

    I give up, how long does it take to open a package.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Everything takes a long time when you are old.

  • @marianpanait7926
    @marianpanait7926 2 ปีที่แล้ว

    Ce tip neodium folositi N 35 or N 48 or N 55 am un alternator 14v ..180ap si vreau sal modific la 220v ce ma sfatuiti multumesc

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      magneți N55. Nu stiu cum poti lua 220v. Am doar 6v de la acest alternator.

    • @marianpanait7926
      @marianpanait7926 2 ปีที่แล้ว

      @@DaftOldMan multumesc

  • @user-ee5fx8pz3u
    @user-ee5fx8pz3u 7 หลายเดือนก่อน

    Merhaba çıkış AC mi DC mi ve kaç volt

  • @talhatopcu2254
    @talhatopcu2254 หลายเดือนก่อน

    Is it possible to produce 220v AC with this?

    • @DaftOldMan
      @DaftOldMan  หลายเดือนก่อน

      No I do not think this is possible

  • @adrianocristo5019
    @adrianocristo5019 2 ปีที่แล้ว +1

    OLA BOA TARDE. QUERIA SABER COMO VC SABE O IMÃ É NORTE E SUL?

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Eu não sei qual é o norte e qual é o sul. Isso não importa. Eu só preciso saber que cada par de ímãs tem dois pólos diferentes.

  • @asranaimi1088
    @asranaimi1088 ปีที่แล้ว

    هدا هو الموضوع الدي اكلت به لاهيء اخر بحث لي قبل اجتياز مبارة التقني المتخصص موضوع عن المولدات بدوار كهرومغناطيسي ومغناطيسي وإنشاء مشروع البحث في مختبر المؤسسة مدة البحث وإنشاء المشروع ستة أشهر فقط

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thank you for commenting. Good luck with your studies.

  • @jakir_studio
    @jakir_studio 2 ปีที่แล้ว

    If u want more voltage you need to change the winding to smaller gauge copper

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +1

      Thank you for comment. Yes I agrree thinner wire gives more voltage. This is how I got more voltage from a converted electric motor. I rewound the stator coils with thinner wire. With the PMA I want to get more power (Watts) as voltage and more current. I think 12v amd 100 amps is better than high voltage and low amps. I may be wrong.

    • @user-bk9im3tj9f
      @user-bk9im3tj9f ปีที่แล้ว

      8

  • @faidate2743
    @faidate2743 ปีที่แล้ว

    only 2 volts? very little I have made one that generates 10 passes volts at those turns

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      You are more skilled than me.

  • @maxgitteri2064
    @maxgitteri2064 ปีที่แล้ว

    "Probabilmente" stai usando il misuratore di corrente continua sul multimetro e quindi, la componente DC è molto bassa, trattandosi di un alternatore. Prova a selezionare 200 su ACV

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Sto misurando la tensione dopo il raddrizzatore, quindi sto misurando l'uscita CC

  • @marcodimitri1454
    @marcodimitri1454 2 ปีที่แล้ว

    What is neodimio n45?

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      "N" is strength of magnet. I think my magnets are n52 which is the strongest I could buy on ebay.

  • @itamarfaustino7454
    @itamarfaustino7454 ปีที่แล้ว

    Pra retirar o rotor só era bater que saia não precisa retirar a placa

  • @markhottman2652
    @markhottman2652 7 หลายเดือนก่อน

    Free electricity? Doubt it

  • @daniel-qh4zq
    @daniel-qh4zq ปีที่แล้ว

    Why?

  • @reinaldoaraujo8975
    @reinaldoaraujo8975 11 หลายเดือนก่อน

    O seu multímetro está medindo 2,5 amperes e não 2,5 volts, é isso mesmo.

  • @user-mt9kc3yk8q
    @user-mt9kc3yk8q ปีที่แล้ว

    А зачем было убирать щетки? Нужно было через них самозапит подмагничивания ротора. Да и стабилизация выходного напряжения как никак. По идее, статор перемотать на тоньше провод, пожертвовать током, и увеличить количество витков. Ток в 100 ампер особо нигде и не нужен. Пусть бы лучше гарантировано 12 вольт 10 ампер, при небольших оборотах.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Я хотел бы 300 Вт, так что 30 В и 10 ампер было бы неплохо.

  • @josesito359
    @josesito359 3 หลายเดือนก่อน

    Ya lo vi en feb.2 24. Agregué suptiulos Español

  • @chongshenchang9367
    @chongshenchang9367 ปีที่แล้ว

    After spending so much time on modifications,... So sorry that you are getting very very low voltage...!! Anyways, it was just an experiment.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thank you for commenting. I am learning from my experiments.

  • @WilsonDieven
    @WilsonDieven 5 หลายเดือนก่อน

    Saludo

  • @hommerdalor6301
    @hommerdalor6301 2 ปีที่แล้ว

    Hello.
    Maybe it needs more rpm?
    Cheers.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +1

      Thanks for commenting. Yes rpm is a problem as I am only spinning it with a cordless drill but I think the biggest problem is the magnets.

    • @hommerdalor6301
      @hommerdalor6301 2 ปีที่แล้ว

      Stronger magnets will make more amps, but I think the speed would increase Volts, maybe puting more poles, there is still space between to make dubble the number of poles.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว +1

      @@hommerdalor6301 You are correct about the magnets. That is my next try.

    • @hommerdalor6301
      @hommerdalor6301 2 ปีที่แล้ว

      👍I’m Impatient to see the result 🤓 :-)
      Cheers.

  • @Pablo-id1xn
    @Pablo-id1xn ปีที่แล้ว

    Vreau și eu un alternator preparat cu macneti

  • @andreasberzins3642
    @andreasberzins3642 2 ปีที่แล้ว

    Multimeter auf AC oder DC soll sein, aber was messen Sie jetzt? :)

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Spannungsmessung ist DC vom Regler

    • @andreasberzins3642
      @andreasberzins3642 2 ปีที่แล้ว

      @@DaftOldMan Ok. Ich habe eine PKW Lichtmaschine 160A mit Testblatt. Max Strom zeugt er bei 6000rpm/min.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      @@andreasberzins3642 Ich denke, diese Lichtmaschine sollte 110a bei 6000 U / min erzeugen. Es tut dies nicht als PMA.

  • @HalenLowman
    @HalenLowman 12 วันที่ผ่านมา

    Just put a speaker magnet inside the rotor

  • @vdsmade
    @vdsmade 2 ปีที่แล้ว

    👽👍

  • @dupervalernsodimitry8555
    @dupervalernsodimitry8555 ปีที่แล้ว

    Ou peut on trouver les magnettes

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      You can buy magnets on Ali express

  • @bertosudu9506
    @bertosudu9506 ปีที่แล้ว

    👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

  • @shekjames4141
    @shekjames4141 ปีที่แล้ว

    ???? Kliko volta daje ? 2,5 vol.?

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Da. 2.5v To je sve

    • @shekjames4141
      @shekjames4141 ปีที่แล้ว

      @@DaftOldManHvala , znači to što ima na stotine takvih videa sve je laž.

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@shekjames4141 Sve što vam mogu reći je da su moji rezultati pošteni rezultati. Ne znam kako drugi ljudi postižu bolje rezultate.

  • @marcinw8330
    @marcinw8330 2 ปีที่แล้ว

    I get only 5.3V with magnets 10x10x5

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Welcome to my world. Some youtubers claim fantastic results but I cannot get them.

    • @marcinw8330
      @marcinw8330 2 ปีที่แล้ว

      i think this is impossible, it fake

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      @@marcinw8330 I got much better results using the alternator unchanged with no magnets.

  • @junaidijunaidi5709
    @junaidijunaidi5709 ปีที่แล้ว

    Berapa harganya alternator mobil jadi listrik

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Saya di Inggris. Alternator ini berharga £23.00

  • @bertosudu9506
    @bertosudu9506 ปีที่แล้ว

    Hce kupić ten alternator agregat prondo twurczy hau tu macz € zł

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Przepraszam. Nie na sprzedaż

  • @comimurakamino7266
    @comimurakamino7266 2 ปีที่แล้ว

    When I went, I placed a magnet with a 24-volt alternator and turned it, and observed only 7 volts.

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Thank you for commenting. Watch my other videos. That may help.

  • @Sameer.Electric
    @Sameer.Electric ปีที่แล้ว

    2.5 VolT 😁😁😁😜

  • @user-er3mj6pc1l
    @user-er3mj6pc1l 5 หลายเดือนก่อน

    100% FaceNius

  • @TheShedevri
    @TheShedevri 2 ปีที่แล้ว

    😁😁

  • @marcelgranda1341
    @marcelgranda1341 ปีที่แล้ว

    Que sistema tan ineficiente. La idea es excelente, pero genera muy poca tensión para tantas revoluciones de entrada

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Gracias por comentar. Sí, el sistema es muy ineficiente.

  • @dupervalernsodimitry8555
    @dupervalernsodimitry8555 ปีที่แล้ว

    Je vex acheter des magnettes,

  • @christophercannon5068
    @christophercannon5068 ปีที่แล้ว

    Remove the diodes assembly.

  • @logosrema7105
    @logosrema7105 2 หลายเดือนก่อน

    При утоплении магнита в железо ротора на поверхность зуба ротора выходит противоположный полюс магнита и затея получается безграмотная и глупая

    • @DaftOldMan
      @DaftOldMan  2 หลายเดือนก่อน

      Спасибо за комментарий. Я считаю, что вы правы.

  • @GTazz99
    @GTazz99 ปีที่แล้ว

    safety first you should turn off the drill press first before cleaning with the brush or measuring the hole and why people are afraid talking on those videos do you think anyone can recognize them by their voice ??

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Thanks for commenting. I do make talky videos too.😁

    • @GTazz99
      @GTazz99 ปีที่แล้ว

      @@DaftOldMan Ok good but what happened after all this hard work the alternator didn't generated any power to run 120V or 220v I think all those videos saying they can create infant power showing they can run tools lightbulbs and 120V or 220V motor is all fake how can a 12V alternator supply enough power to run 120 V motor ? not even one answered my question YET even with all the changes you made it didn't make more then 2.1 V look at all the videos on the right side of the page generate 400V 3HP free energy if this was real everyone would have already made it long time ago I would have bought 10 Alternators from a junk yard and start selling those free power sources not one video really shows' how it works ..I think people making does videos for the sake of making videos on TH-cam

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      @@GTazz99 I completely agree with you. My video is not about free energy. I wanted to find out if an alternator could be made into a PMA and used to generate 1500W which is what the alternator is rated at. My experiments tell me that you cannot do it. Lots of youtube channels can, but I cannot. In theory the original alternator can generate 1500W using electromagnet coil on the rotor. I showed this in my other videos. My experiments were to find a cheap generator to attach to a windmill and then generate 300 to 500W at 12v. I could not do it.

  • @januszjankowski501
    @januszjankowski501 9 หลายเดือนก่อน

    Wiertarka zużywa więcej prądu niż produkuje alternator

    • @DaftOldMan
      @DaftOldMan  9 หลายเดือนก่อน +1

      Tak. Tak działa fizyka😁

  • @NamiBern-2MAX72v40ah
    @NamiBern-2MAX72v40ah ปีที่แล้ว +1

    Зачем Людей вводите в заблуждение. Диодный мост не нужен!!!!🤦‍♂

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Спасибо за комментарий. Мне нужен диодный мост, потому что я хочу постоянный ток.

  • @alainmerle3465
    @alainmerle3465 ปีที่แล้ว

    Ouvrir un colis on sait faire

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Mais sans la vidéo, vous ne verriez pas à quel point c'était bien emballé.

  • @ddshterevv89
    @ddshterevv89 2 ปีที่แล้ว +1

    TAKE THE DYIODS OUT !!!!

    • @DaftOldMan
      @DaftOldMan  2 ปีที่แล้ว

      Thank you for suggestion. I will be trying it without diodes in the future.

  • @diegoschiavon2535
    @diegoschiavon2535 ปีที่แล้ว

    Non riesco a trovare le pulegge per la cinghia

  • @dai-ut5zl
    @dai-ut5zl 8 หลายเดือนก่อน

    high voltage output 😅

    • @DaftOldMan
      @DaftOldMan  8 หลายเดือนก่อน

      Yes😁😁😁

  • @user-jt3nl1gb5v
    @user-jt3nl1gb5v ปีที่แล้ว

    Харесвам

    • @DaftOldMan
      @DaftOldMan  ปีที่แล้ว

      Благодаря ти

  • @Energy1311
    @Energy1311 4 หลายเดือนก่อน

    😂😂😂

  • @Traveler5911
    @Traveler5911 6 หลายเดือนก่อน

    🤣🤣🤣

  • @user-hp8fi8wz9y
    @user-hp8fi8wz9y 2 หลายเดือนก่อน

    ek ek skro kholra he ks ra he..logo ka time brbad krra he..

  • @benladan1094
    @benladan1094 ปีที่แล้ว

    Нихуя не понял смысл видео. Был 12в стал 2??? )))

    • @Leshch
      @Leshch ปีที่แล้ว

      Я тоже нихера не понял бешенное залипание и 2 вольта в чём прикол?

  • @user-wm6su2og3n
    @user-wm6su2og3n 3 หลายเดือนก่อน

    Guarda che l'alternatore non ha i magneti permanenti

  • @SebTwinlat
    @SebTwinlat 4 หลายเดือนก่อน

    pffffffffffffffffffffffff

  • @xxvmax
    @xxvmax ปีที่แล้ว +1

    Not sure how Musk should express his feelings, his Tesla can finally get rid of the battery, and I thank you on behalf of him, lol. I support the 🇺🇦 of the Ukraine