How far can I Wirelessly Transfer Power? (Experiment) Better than at MIT?

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  • เผยแพร่เมื่อ 27 พ.ค. 2024
  • Altium Designer: altium.com/yt/greatscott!
    WARNING!: Do not replicate the experiment showcased in the video!
    Previous video: • Finally a good usage f...
    How Does Wireless Charging Work? video: • How Does Wireless Char...
    DIY Wireless Energy Transfer System video: • DIY Wireless Energy Tr...
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    Websites which were shown in the video:
    news.mit.edu/2007/wireless-0607
    archive.eetindia.co.in/www.ee...
    www.we-online.com/catalog/dat...
    In this video I will be once again having a look at wireless power transmission. But this time it is all about distance and power because I wanted to find out whether I could achieve the same results as MIT back in 2007. They transmitted 60W of power with an efficiency of 40% over 2m. During my experiment I will tell you lots about good coil designs and power electronics which are required to achieve such results. Let's get started!
    Thanks to Altium for sponsoring this video.
    Music:
    2011 Lookalike by Bartlebeats
    0:00 MIT's wireless power results
    1:49 Intro
    2:25 Building the power electronics (half-bridge)
    4:18 Coil design (diameter, windings)
    5:54 Frequency selection for the coil design
    7:14 Test 1 (windings)
    8:50 Test 2 (diameter)
    9:15 Test 3 (HF litz wire)
    9:49 Final Test & Verdict
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ความคิดเห็น • 854

  • @mistirion4929
    @mistirion4929 2 ปีที่แล้ว +457

    Technically (if it's just about wirelessly transferring power) you could use lasers and achieve greater distances. Although the transferred power would be much lower, the distance would be much greater

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +223

      Correct. But with my electronics background it is more about electromagnetic fields in my case.

    • @a6dulsalam511
      @a6dulsalam511 2 ปีที่แล้ว +48

      @@greatscottlab and the laser is so direct and it could be blocked easily than electromagnetic waves ⚡

    • @ShahZahid
      @ShahZahid 2 ปีที่แล้ว +24

      @@a6dulsalam511 also with a powerful laser, u have many other factors to consider like fire, blinding hazard but if u want to transmit to particular spot its the way to go and thats y many scientists think that it will be used to power spacecrafts in the future

    • @imagoomanwithgoo7563
      @imagoomanwithgoo7563 2 ปีที่แล้ว +23

      Or a belt pulley system

    • @a6dulsalam511
      @a6dulsalam511 2 ปีที่แล้ว +4

      @@ShahZahid That's true it's gonna be used to transmission power from the space to earth!

  • @VladoT
    @VladoT 2 ปีที่แล้ว +148

    Let me tell you how they achieved this: They used the same principle used in the Yagi directional antenna which means that they put resonant coils in calculated distances before and after the actively driven coil in order to extend it's transmitting lobe forward. This is of course not shown in the pictures they published 🙂

    • @ELECTROMAN_MX
      @ELECTROMAN_MX 2 ปีที่แล้ว +2

      how you know that?

    • @VladoT
      @VladoT 2 ปีที่แล้ว +25

      @@ELECTROMAN_MX Because the original experiment was created by a team in Croatia which they presented it in more detail before it was continued by the american team.

    • @great__success
      @great__success 2 ปีที่แล้ว +2

      exactly what I thought....high gain antennas were well known even in 60's and I am talking about MHz or even GHz frequencies

    • @kanesmith8271
      @kanesmith8271 2 ปีที่แล้ว +2

      @@VladoT Why are they going through the effort to conceal key knowledge like that?

    • @VladoT
      @VladoT 2 ปีที่แล้ว +3

      @@kanesmith8271 I guess there will be commercial product soon.

  • @alkaline3mc
    @alkaline3mc ปีที่แล้ว +2

    I am designing a wireless power transfer system right now and I had a lot of questions that your video answered for me. Great work and thank you for doing this!

  • @MrBrelindm
    @MrBrelindm 2 ปีที่แล้ว +48

    Since electromagnetic waves radiate in all directions the power available at any point away from the source will decrease with the square of the distance. This is true for typical point sources of radiation.
    If however, a collimated beam can be formed then the inverse square rule becomes less of a factor while aligning the beams becomes an increasingly important factor.
    With a collimated beam it should be possible to wirelessly transmit power over great distances at high efficiency so long as the transmitting and receiving antennas are well aligned.
    I used to work for Detroit Edison as a contractor in their communications department. One of the things I did in that job was to perform routine maintenance on their several microwave links between their properties. These were microwave T-1 links that were beamed between properties with low power, very high Q parabolic dish antennas.

    • @conorstewart2214
      @conorstewart2214 2 ปีที่แล้ว +10

      Its not so much electromagnetic waves that are transmittting power here, it is the shifting electric and magnetic fields. The fields arent particularly easy to direct which is why transformer design is finding the optimal design that minimises losses. Wireless power transfer is pretty much just a transformer without a core at a distance, all things you want to avoid in conventional transformer design. As far as I know its not that easy to change the shape of the field into a beam or change it much at all as the field naturally makes a loop but as someone else in the comments pointed out they most likely used other coils to stretch the field out and therefore give it more range.

    • @MrBrelindm
      @MrBrelindm 2 ปีที่แล้ว +4

      @@conorstewart2214 you would be amazed at all of the beam forming techniques there are in designing an antenna or antenna system. And basically any "wireless" transmission is radiated from one antenna to another so in order to maximizing the efficiency of long distance power transmission, applying beam forming technology is highly advised.
      Having several coils stacked with one driven coil, and at least 1 reflector coil, and a couple of director coils would offer a narrow cone of directed radiation - a beam lobe. Typically the more elements in a beam antenna system, the tighter the beam lobe, higher the antenna gain, and higher the Q.
      Of course the higher the frequency used, the smaller the antenna design needs to be. Something like I described above would obviously be a high frequency circuit and could be set in a resin pour to maintain the optimal wavelength distance between the different types of coils (beam elements) in the antenna.
      Another useful area of study in antenna design (I'm a former Navy radar tech) is waveguide theory. The higher the frequency used, the easier it is to produce a collimated beam of radiation.

    • @conorstewart2214
      @conorstewart2214 2 ปีที่แล้ว +3

      @@MrBrelindm sorry we might just be thinking differently but it seems at least in part you are talking about antennas and beam forming like the ones used for radio transmissions which is very different from the coils used in wireless power transfer which don't transfer energy through EM waves. Beam forming and long distance transmission through EM waves is totally different and doesn't really apply to wireless power transfer. Radios send out EM waves but wireless power transfer coils don't emit particles or waves like standard antennas do.

    • @MrBrelindm
      @MrBrelindm 2 ปีที่แล้ว

      @@conorstewart2214 the coils used are identical in the video and are placed some distance apart in open air. Alternating (or pulsing direct current) is applied. It radiates and the other coil is energized. That's electromagnetic propagation between the coils. When you're talking about EM propagation, you are talking about antenna design.

    • @evensgrey
      @evensgrey 2 ปีที่แล้ว +1

      The simple kind of power transfer used in things like Qi Chargers for phones or for electric toothbrushes use direct magnetic coupling of the transmission and reception coils. Magnetic field strength (once you're at a distance from the generating current loop that is large compared to the loop size) goes as the inverse cube of distance. (Closer than that, magnetic field strength is weird, and becomes dominated by additional terms in the field equations that fall off even faster with distance. If you're at a small enough distance from the generating coil, the field is as close to uniform as you want. Generally speaking, these power transfer systems have the coils much less than their own diameter apart, so the actual fields are really complicated, but transfer power with enough efficiency to be quite useful.)

  • @MCsCreations
    @MCsCreations 2 ปีที่แล้ว

    Pretty interesting experiment, dude! Excellent work! 😃
    Stay safe and creative there! 🖖😊

  • @nathanial7249
    @nathanial7249 2 ปีที่แล้ว +1

    I absolutely love love love these videos Great Scott! Keep em coming!!!

    • @user-mt2uh1ow7d
      @user-mt2uh1ow7d 2 ปีที่แล้ว

      shut up you just think scott is cute lol

  • @ajeethsuryash5123
    @ajeethsuryash5123 2 ปีที่แล้ว

    Its nice, how he writes things down along with narration

  • @reyrank2846
    @reyrank2846 2 ปีที่แล้ว

    always fascinated the way you explain things.

  • @Stoneman06660
    @Stoneman06660 2 ปีที่แล้ว

    Nice! I do love your sense of humour too. Keep up the good work.

  • @malamu1417
    @malamu1417 2 ปีที่แล้ว +1

    Alter du hast schon 1,5 Millionen Abonnenten. Herzlichen glückwunsch. Habe mir deine Videos schon reingezogen seitdem du gerade mal ein paar tausend hattest.

  • @JeffGeerling
    @JeffGeerling 2 ปีที่แล้ว +59

    11:17 - so... next time, then!

    • @Hex-Mas
      @Hex-Mas 2 ปีที่แล้ว +1

      so how much was that amd video card you bought?

    • @ezzeldin101
      @ezzeldin101 2 ปีที่แล้ว

      I like Jeff videos

    • @JeffGeerling
      @JeffGeerling 2 ปีที่แล้ว +1

      @@Hex-Mas Got it at MSRP!

    • @aidan7913
      @aidan7913 2 ปีที่แล้ว

      @@JeffGeerling amazing! how did you manage that?

    • @512mb4
      @512mb4 2 ปีที่แล้ว

      Make a wireless pi to cook a pie then , with a timelapse

  • @ats89117
    @ats89117 2 ปีที่แล้ว +17

    It seems like you should be able to improve the efficiency by placing a highly permeable sheet on the outside of the transmitter and receiver coils. Hope you will try this!

  • @akaskmsskssk6927
    @akaskmsskssk6927 2 ปีที่แล้ว

    Nice vid, learned a lot, you should do more experimental videos like this

  • @anokhautomation4453
    @anokhautomation4453 2 ปีที่แล้ว

    Amazing experiment. 👌👌wishing you all success. 👍

  • @plmbtired
    @plmbtired 2 ปีที่แล้ว +16

    Love the this channel!! I have been watching for quit some and trying to teach myself alot is still an alien language but you always inspire me to learn more so one day I can understand what you were talking about.

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +9

      You can do it!

    • @dougcox835
      @dougcox835 2 ปีที่แล้ว

      Just remember shat when he says something is serious he really means series.

    • @WarriorRev6300
      @WarriorRev6300 2 ปีที่แล้ว

      I watched 3/4th the videos of this channel.

  • @s.sradon9782
    @s.sradon9782 2 ปีที่แล้ว +40

    corporation: here's a charger that's half as efficient, 4 times slower, 10 tiems more expensive and it doesnt allow you to use your phone while chargin, but it's kinda cool.
    everyone: **deal**

    • @theodiscusgaming3909
      @theodiscusgaming3909 2 ปีที่แล้ว +2

      The power of marketing.

    • @rpavlik1
      @rpavlik1 2 ปีที่แล้ว +3

      Kids can't break your phone's charging port if you aren't using a charging port.

    • @evensgrey
      @evensgrey 2 ปีที่แล้ว +1

      @@theodiscusgaming3909 None of the people behind those charging systems are good enough at marketing to get people to bite something that obviously crappy. I think most engineers they interview look at the thing they want them to build and say to themselves, "I don't want to have THIS on my resume!"

    • @arthurmoore9488
      @arthurmoore9488 2 ปีที่แล้ว +1

      You're forgetting the most important part. Just toss your phone on a particular spot and it's charged when you're ready to use it. Wired charging is still extremely valuable, but I don't use my phone while sleeping and it's "good enough." To not have to plug in a cable every night.

    • @s.sradon9782
      @s.sradon9782 2 ปีที่แล้ว

      @@arthurmoore9488 I just have my cable organized so it takes no more effort to plug in and it stays in.

  • @ioannisnikiforidis325
    @ioannisnikiforidis325 2 ปีที่แล้ว +5

    I like your approach to problem solving in your videos, keep up the good work.
    Some suggestions for future IPT videos:
    - Try going to MHz switching frequency to maximise link efficiency (13.56 MHz is a good point overall), GaN devices can help you achieve this.
    - Try driving your transmitter with resonant inverters (Class E or Class EF), since they provide higher efficiency (95%+ is possible) at high frequencies and low THD .
    - You can get very high Q's (around 1000), by using copper plumbing tube for coils, just make sure to keep the number of turns low to minimise radiation.

  • @RiffHarvester
    @RiffHarvester 2 ปีที่แล้ว

    Another Great (Scott) video!! I'm intrigued by wireless charging/transmission. Also, I really like your handwriting. I'm sure you've heard that before.

  • @acestudioscouk-Ace-G0ACE
    @acestudioscouk-Ace-G0ACE 2 ปีที่แล้ว

    Thanks for sharing this, I enjoyed the learning experience here.

  • @chinmaymohanty1284
    @chinmaymohanty1284 2 ปีที่แล้ว

    great video, as usual, years since I am watching you and you have helped me a lot to get a bachelors degree.

  • @ZAR610
    @ZAR610 2 ปีที่แล้ว

    Very nice job! Really interesting! Thanks for your work!

  • @leosbagoftricks3732
    @leosbagoftricks3732 2 ปีที่แล้ว +18

    Love your detailed experiments! The whole subject of wireless power strikes me as a prime example of "convenience culture" - a highly inefficient and horrendously complex idea promises to replace a 99.999% efficient $0.50 charging cable that we are just too lazy to plug in.

    • @blogiblogowicz574
      @blogiblogowicz574 2 ปีที่แล้ว

      you are forgetting that there is a wired charger attached to your 99.999% efficient plug (at least AC/DC conversion) - at the end of the day, if propely aligned, wireless charging isnt considerably worse (90%+)

    • @Gooberslot
      @Gooberslot 2 ปีที่แล้ว

      @@blogiblogowicz574 Wireless charging also has an AC/DC conversion since the wireless charging transmits AC power. In fact, there's probably even more AC/DC conversions since I doubt you're running the charger directly off of mains voltage.

    • @blogiblogowicz574
      @blogiblogowicz574 2 ปีที่แล้ว

      @@Gooberslot correct. both have PFC + HF inverter (as in ~100kHz, dont think MHz) + rectifier. The only difference is the magnetics inbetween, which isnt as inefficient as one might think, if properly designed.

    • @iskandarsyah9624
      @iskandarsyah9624 2 ปีที่แล้ว

      Look at this for your wireless "charging" on steroids:
      th-cam.com/video/JhypyOUZ2xg/w-d-xo.html

    • @blogiblogowicz574
      @blogiblogowicz574 2 ปีที่แล้ว

      @@iskandarsyah9624 ahm.. as soon as I read about "overunitiy" I kinda stopped paying attention.

  • @trishanustech281
    @trishanustech281 2 ปีที่แล้ว

    ur videos are the most detailed videos I have ever seen!!!

  • @myturkishlife1777
    @myturkishlife1777 2 ปีที่แล้ว

    Another well thought out video 👍

  • @sumanchattopadhyay7405
    @sumanchattopadhyay7405 2 ปีที่แล้ว +1

    Love your projects/videos..

  • @darandombomb
    @darandombomb 2 ปีที่แล้ว

    Really loving the content!

  • @maertsnosmirc
    @maertsnosmirc 2 ปีที่แล้ว

    Fantastic as always!

  • @stm32user
    @stm32user 2 ปีที่แล้ว

    One of my favourite youtuber. Greatscott

  • @dodge1629
    @dodge1629 2 ปีที่แล้ว +14

    This wireless power system thing is old ... when I was I child my dad built a small AM radio that was powered by it's own antenna! It was awesome the way it works due it was using the radio signal to power on the little circuit! And tha was on 86's ....

    • @jimmyb1451
      @jimmyb1451 2 ปีที่แล้ว +2

      @@flexairz Received, yes. Kw transmitted.
      Which is why "wireless power" is such a waste of time.

    • @AhmedAli-op6ng
      @AhmedAli-op6ng 2 ปีที่แล้ว

      @@jimmyb1451 not really it is the future of EV ( TAXIS etc) search more about it. Some companies even claims and have tested it to as efficient as 94% for bulk of power more than 50 KW.

    • @reverse_engineered
      @reverse_engineered 2 ปีที่แล้ว +1

      That AM radio managed to recover milliwatts of power from a transmitter putting out many kilowatts. That's fine for transmitting information, but it's extremely inefficient for transmitting power. All modern radio devices (e.g. mobile phones, Wi-Fi) perform in much the same way, though often with more directed and efficient methods. But still, the receiver receives only a very small fraction of the power transmitted.
      The goal behind wireless power transmission is to receive a large portion of the transmitted power over a considerable distance, not just some tiny fraction of it.

  • @midnightgadget3459
    @midnightgadget3459 2 ปีที่แล้ว

    loved this one mate.

  • @logicawe
    @logicawe 2 ปีที่แล้ว

    Really cool experiment 🐱 thanks for sharing 👍

  • @ezequieladrianminniti6252
    @ezequieladrianminniti6252 2 ปีที่แล้ว

    Excellent video. Keep it up!!

  • @HoXDipannew
    @HoXDipannew 2 ปีที่แล้ว +8

    You're the best 🤩👍🏻

  • @seeers0
    @seeers0 2 ปีที่แล้ว +3

    Thanks for the interesting video! Maybe a metal detector would be a nice project to experiment further with transmit / receive coils.

  • @pranavchippalkatti2850
    @pranavchippalkatti2850 2 ปีที่แล้ว

    @GreatScott u r truly great !!

  • @mums2109
    @mums2109 2 ปีที่แล้ว

    Haha I love that you are branching out in your acting! *challenge accepted*
    Always love your work!

  • @anshumanpanda4962
    @anshumanpanda4962 2 ปีที่แล้ว

    Love your videos !

  • @silascone2276
    @silascone2276 2 ปีที่แล้ว

    Loving the new intro style!!

  • @bsand1746
    @bsand1746 2 ปีที่แล้ว

    You're awesome! Love your videos, thank you👍

  • @transistorbrains
    @transistorbrains 2 ปีที่แล้ว +2

    If you wanted to carry this experiment further in the future, you could add variable capacitors (preferably controlled via microcontroller) and then set up tests that will sweep through frequencies and capacitances until you get your maximum power throughput for given coil specs. Should be able to create some nice graphs similar to the ones for the commercial coils.

    • @americamartinez5339
      @americamartinez5339 ปีที่แล้ว +2

      do these controlled capacitors have a special name?

  • @deepakkamble3423
    @deepakkamble3423 2 ปีที่แล้ว

    Great sir 🔥
    Vielen Dank für das sind alles Informationen. 😊

  • @briantb5550
    @briantb5550 2 ปีที่แล้ว

    Great stuff Scott, thanks

  • @richgolfs
    @richgolfs 2 ปีที่แล้ว

    Excellent video!

  • @prashkd7684
    @prashkd7684 2 ปีที่แล้ว

    I wrote an IEEE paper back in 2012 on wireless energy transfer using planer transformers & our method showed far better efficiency and better control. The Key is achieving resonance between the Tx and Rx coils.

  • @X-OR_
    @X-OR_ 2 ปีที่แล้ว +4

    Forgive me if my thinking is wrong here but, the output coil is kind of like a dipole, where the electric charges are equal on opposite sides. I wonder if you can use a radiator like a on a Yagi antenna to push the unused electric charges to the other side and have more output from the coil...in one direction ?

    • @bobnick9892
      @bobnick9892 2 ปีที่แล้ว

      That's a great idea !

  • @thetechboy8529
    @thetechboy8529 2 ปีที่แล้ว

    As always, great sir.

  • @aks8403
    @aks8403 2 ปีที่แล้ว

    Nice video .This is a topic I really like!

  • @jpsimas2
    @jpsimas2 2 ปีที่แล้ว

    such a small current loop, relative to the wavelength, actually acts like an omidirectional antenna on the far field and radiates the more to its side than to its middle... While you're in near field your system works, but in the moment the distance increases enough you end up in the direction where your antenna radiates the least. One way of possibly solving this is adding some sort of ferromagnetic material to the middle of the coil, so that the wavelength that matters is the one inside the material (or somewhere in between that and the one in vacuum because the coil won't be fully embedded in the material). When the perimeter of the loop is close to the wavelength (in the ferromagnetic material) then you get a directional antenna

  • @harshgandhi100
    @harshgandhi100 2 ปีที่แล้ว +1

    Ventures into the unknown require sheer will. Its an inspiration to watch you.

  • @Eric-qp7rx
    @Eric-qp7rx 2 ปีที่แล้ว +1

    I always wanted a way to transfer power through a window or glass sliding door. Ive rented apartments before that didnt have a outlet outside and i wanted to plug in a light or something. Theres nothing like that on the market but i think it would be a great idea for a product. I think the technology is there for this, someones just got to do it.

  • @Miata822
    @Miata822 2 ปีที่แล้ว +11

    I wonder if a parabolic reflector, perhaps from an old satellite TV system, might make the generated power more directional.

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +8

      Hmmmmm good question

    • @dougcox835
      @dougcox835 2 ปีที่แล้ว +5

      Nope, You can't reflect or focus magnetic fields like that. You could add a ferrite core though to give the field a more directional path. But you lose the nice flat shape then.

    • @Mobin92
      @Mobin92 2 ปีที่แล้ว

      @@dougcox835 But then how do satellite dishes work?

    • @vripscript
      @vripscript 2 ปีที่แล้ว +1

      @@Mobin92 microwaves are not magnetic flux

    • @Miata822
      @Miata822 2 ปีที่แล้ว

      @@vripscript Aren't all radio waves simply modulated magnetic flux?

  • @Brassmonger
    @Brassmonger 2 ปีที่แล้ว

    Variations between capacitance and inductance for the same frequency also matters. Your load impedance also makes difference.

  • @thelwq
    @thelwq 2 ปีที่แล้ว +12

    Scott, what about using a MPPT to track ideal point of the coil and thus produce maximum power?

  • @user-ub2bh9ze2n
    @user-ub2bh9ze2n 4 หลายเดือนก่อน +1

    ur the best teacher i have ever seen thanks bro 😍 😍

  • @paulpease8254
    @paulpease8254 2 ปีที่แล้ว

    Super interesting, thanks!

  • @I33nc3
    @I33nc3 2 ปีที่แล้ว

    Please look at the magnetic loop antenna designs for reference.. Some of them use the coax shield for the loop, because of the skin effect is very efficient. They are also very simple, you only need the coax cable and a tunable high voltage capacitor that varies the frequency.

  • @gfsm
    @gfsm 2 ปีที่แล้ว +8

    The MIT has some brilliant minds and money for research... I think that it's very difficult (or almost impossible) to replicate their results with the resources that most of us have... even in the university (my case).
    But, as always, this was a very interesting video. I usually share them with my students and other professors at the university.
    Thanks for your time and dedication!

  • @mintunath3919
    @mintunath3919 2 ปีที่แล้ว +1

    Hi greatscot great experiment.
    I already developed a WPT system a month ago that is without microcontroller and that can send power with 40% efficiency. And power up from 7.5V battery🔋/power supply.
    The distance I achived about 30-40mm.

  • @Drxxx
    @Drxxx 2 ปีที่แล้ว

    great video! super channel!

  • @goliathsuperstar
    @goliathsuperstar 2 ปีที่แล้ว

    i love coming to your videos, your are amazing

  • @------country-boy-------
    @------country-boy------- 2 ปีที่แล้ว

    Thank You for making this video !!!!!!!!!!

  • @allasayegh1411
    @allasayegh1411 2 ปีที่แล้ว

    great as always

  • @brettmoore3194
    @brettmoore3194 2 ปีที่แล้ว

    Have you tried resonant rlc circuits? Use variable capacitor, var. Resistor and var. Inductor to tune. As distance increases so does the resistance so it changes the frequency. You will have to keep tuning until resonance occurs. Dual tuning forks show the same effect

  • @chefboyrdee1
    @chefboyrdee1 2 ปีที่แล้ว +2

    May I suggest using a 2 parabolic metal disks to direct the energy. At the moment it's going in 360 when you're receiver (RX) is in front of the Transmitter (Tx). An Antenna on the Rx would also make things much more efficient and capable for long distance.

    • @KennethNicholson1972
      @KennethNicholson1972 2 ปีที่แล้ว

      Yes, brilliant... Needs focusing, as with a yagi antenna, at both the transmitter and reciever.

  • @user-gr5qb2iv8w
    @user-gr5qb2iv8w 2 ปีที่แล้ว

    great doing!hello from Belarus!

  • @JawadAhmadsahibzada
    @JawadAhmadsahibzada 2 ปีที่แล้ว

    Great 👍🏼 Scott !!!

  • @dz-abouttechnique1849
    @dz-abouttechnique1849 2 ปีที่แล้ว

    Great experiment.

  • @kylebrake1806
    @kylebrake1806 2 ปีที่แล้ว

    I love your videos!

  • @sam7901
    @sam7901 2 ปีที่แล้ว

    You could attain much higher frequencies using GaN fets. If you take care in choosing the core of your magnetics (To bring down core losses), you can have a very compact design

  • @maxximumb
    @maxximumb 2 ปีที่แล้ว

    Every day I learn something new.

  • @michaelcasper4727
    @michaelcasper4727 2 ปีที่แล้ว +4

    I know how you can improve efficiency - just use 2 Yagi antennas, pointed at each other. Ham radio Yagi antennas come in different sizes and most handle 100 Watts or more. That would be the most efficient "beaming" of EM energy you can get.

    • @telefon72
      @telefon72 2 ปีที่แล้ว

      But you would need much higher frequencies

    • @mashilmy
      @mashilmy 2 ปีที่แล้ว

      @@telefon72 yeah, but not a must. Frequency is just to speeding up the transmission, so power losses can be decreased.

    • @telefon72
      @telefon72 2 ปีที่แล้ว

      @@mashilmy I would like to see someone construct an efficient Yagi antenna for these frequencies.

  • @handyhippie6548
    @handyhippie6548 2 ปีที่แล้ว

    you could try using soft copper water line coated with lacquer, rather than wire for your coils. it will hold it's shape better, and be easier to form, since it already comes as a coil when you buy it.

  • @letitrotfuckit
    @letitrotfuckit 2 ปีที่แล้ว

    Nice! You built a long wave transmitter

  • @gacherumburu9958
    @gacherumburu9958 2 ปีที่แล้ว

    Good job!

  • @alejandrovidal1607
    @alejandrovidal1607 2 ปีที่แล้ว

    Wow you discover the radio!!

  • @alternateracoon4872
    @alternateracoon4872 2 ปีที่แล้ว +12

    The handwriting is so satisfying and the way he simply explains stuff is so amazing

  • @kanhaiyalalrajput3215
    @kanhaiyalalrajput3215 ปีที่แล้ว

    This is the type of experiment that I like, in which we have to figure out the stuff by ourselves (and to construct instruments from scratch) rather than just following the pre-formed instructions of doing practicals with readymade apparatus from the Manuel.

  • @attilagergely6734
    @attilagergely6734 2 ปีที่แล้ว

    Cool Project!

  • @69iqtutorial
    @69iqtutorial 2 ปีที่แล้ว +1

    Nice video, i think the max power can be transmitted by making a zvs circuit at the primary side maybe and making the secondary tank circuit with a wires having much more strands of wire

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +1

      ZVS does not improve this.

    • @samarthguleria788
      @samarthguleria788 2 ปีที่แล้ว +1

      He is going towards efficiency and distance

    • @69iqtutorial
      @69iqtutorial 2 ปีที่แล้ว

      I mean, zvs can generate a sine wave with more that 3× peak voltages

  • @durishburish
    @durishburish 2 ปีที่แล้ว

    Great work ...

  • @alainsaffray4471
    @alainsaffray4471 2 ปีที่แล้ว +1

    Theses systems emites in all directions. It can be interesting to use directional antenna at emitter and receiver for concentrate the electromagnetic wave

  • @user-pv5kw6iu2u
    @user-pv5kw6iu2u ปีที่แล้ว

    Hello, Great Scott. Great to see your extensive experimentation with wireless power transmission. I have a question to ask you now. I reproduced the H-bridge drive circuit exactly as shown in your video, but when I connect LC in series to the circuit, even if a small VCC is given, such as 2V, the current can be close to 1A, which is consistent with a short circuit. The resonant capacitor is also overwhelmed, and the pin is almost in a state of fusing. How can I use it correctly to generate resonance?

  • @MrGridStrom
    @MrGridStrom 2 ปีที่แล้ว

    You are you electronics GOD of youtube dude!

  • @Purple431
    @Purple431 2 ปีที่แล้ว +29

    I will definitely check out those older videos of yours!
    By the way... Would you ever build a plasma globe with tesla coil or just a simple flyback driver circuit?

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +23

      Great! Eventually I can do that.

    • @Purple431
      @Purple431 2 ปีที่แล้ว

      Nice

  • @ShahZahid
    @ShahZahid 2 ปีที่แล้ว +1

    ah man i was waiting for this video

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว

      I hope you will enjoy it :-)

  • @fleckione-workinprogress4249
    @fleckione-workinprogress4249 2 ปีที่แล้ว

    Very interesting!

  • @electroscientist4447
    @electroscientist4447 2 ปีที่แล้ว +31

    great project scott I understand why you uploading frequently recently because of the stupid youtube algorithm . very sad too think that stupid nonsense video gets lots of view .and educational video didn't ... however I hope the best for you keep up your great work ... and lastly do you have any plan about drone project ?? It'll be very interesting to see stuff like that on here

    • @TutorialsGuru
      @TutorialsGuru 2 ปีที่แล้ว +4

      Same here. Free energy is doing rounds with millions view, but Nobody carefully reads their standard 10 Science books.
      Sad state of affairs.

    • @omniyambot9876
      @omniyambot9876 2 ปีที่แล้ว +3

      Yeahh he is getting a lot less views

    • @electroscientist4447
      @electroscientist4447 2 ปีที่แล้ว +5

      It's very sad when you think about it
      Eev-vlog,electonoob , micro-raps their avarage is even lower

    • @512mb4
      @512mb4 2 ปีที่แล้ว +1

      This remind me of a movie, idiocracy

  • @dspartan007
    @dspartan007 2 ปีที่แล้ว

    Great video

  • @hallkbrdz
    @hallkbrdz 2 ปีที่แล้ว

    Tens of miles with simple coils (Tesla did that). In the classroom with a Tesla coil we built with a tube amplifier that ran at 850 Khz (jammed KOA) we could easily light a florescent tube at 30 feet. Using a focused beam, or light, much farther. The problem with all but the laser - you need a ground for the return loop.

  • @ynzeselders4184
    @ynzeselders4184 2 ปีที่แล้ว +9

    Would have been interessting to see how the litz wire would compare at much higher frequencies.

    • @b062838868
      @b062838868 2 ปีที่แล้ว +2

      incurred all of the penalties but got none of the Benefits

  • @blanana_m
    @blanana_m 2 ปีที่แล้ว

    This is so cool!
    I especially love the new video and Thumbnail style
    Btw: Have you made a High Frequency tesla coil yet?

    • @greatscottlab
      @greatscottlab  2 ปีที่แล้ว +1

      I made a tesla coil before. It was a 3 part video series.

    • @blanana_m
      @blanana_m 2 ปีที่แล้ว

      @@greatscottlab I meant a Tesla Coil in the 10Mhz Region

  • @ShadowGPSDFX
    @ShadowGPSDFX 2 ปีที่แล้ว

    Awesome videos!!!! Thanks!!!!

  • @robbytheremin2443
    @robbytheremin2443 2 ปีที่แล้ว

    Based on my practical experience with amateur radio, skin effect isn't a major issue up to several megahertz.
    My kilowatt amplifier uses inductors made of copper tubing above 20 mhz.

  • @Jarmezrocks
    @Jarmezrocks 2 ปีที่แล้ว

    Hey you could try using thick gage jumper leads for jump starting cars? Cheap and thick? I would suggest de-skinning the silicone shielding and twist the wires using a drill 👍 clamp and solder each end 1 at a time

  • @KillerNetDog
    @KillerNetDog 2 ปีที่แล้ว

    To get the best efficiency and distance you need those coils to be accurately tuned to be resonant at the frequency being transmitted and received And you want the antennas (coils) to be as directional as possible as that will increase signal strength at range.. Look to Ham radio antenna theories, You may be getting more power reflected back at your transmitter from your coil than is being radiated by it.

  • @konserv
    @konserv 2 ปีที่แล้ว +1

    I remember battery-free crystal radio kits for kids. That's the kind of remote power transmission.

    • @andyhowlett2231
      @andyhowlett2231 2 ปีที่แล้ว

      Yes it is, but the broadcasting stations us tens of kW and even just a mile away the crystal set can only provide a few mW for headphone listening, even when a long wire antenna is attached. The losses are way too high for power transmission.

  • @arthurmorgan8966
    @arthurmorgan8966 2 ปีที่แล้ว

    Imagine powering up small robotics within vacuum chambers to do nanotech stuff like Thought Emporium’s sputtering machine. Where battery cannot be used due to durability or physical conditions, this could be super handy.

  • @sitaramchandora3104
    @sitaramchandora3104 2 ปีที่แล้ว +1

    Love From India
    😍😍😍
    Awesome Content Bro

  • @harshbarj
    @harshbarj 2 ปีที่แล้ว

    I actually did something like this when I was a kid in the 90's. I did not like having a cable running to my headphones, so I grabbed a pair of earbuds and added a small wire loop to each. I then put a LARGE coil on my stereo. Two problems (ok 3). #1. The volume was very low after more than 2 feet from the coil. #2. To get a useful distance I had to push the volume so high, the coil would start to glow in spots (was using an OLD Rotel stereo from the mid 70's). And #3. It was not stereo.

  • @dineshvyas
    @dineshvyas 2 ปีที่แล้ว

    Hello GreatScott, you need some simple machnical apparatus for this experiment. I am sure it will give more encouraging results.