100 thoughts on “DIY Wireless Energy Transfer System

  • Watched almost every video you uploaded…. Love to see it….nice explanation…..but the only part of calculations it really difficult to understand… anyway thanks for video

  • Thnx for the video man. It was great. But I was going through the circuit design and I saw many voltage sources with capacitors connected to ground but those voltage sources were not used ( looks like you were about to use them and then you just left it there), So please tell me whether I should use those voltage sources as I m trying to replicate this circuit. Please reply at the earliest.And by the way, can I use IRFZ44N instead of IRLZ44N and Should we use the same driver for IRFZ44N mosfet??

  • This is very helpful??? thank you for making ??.
    Hey can u make a simple circuit on wireless mobile charging station I would like to build one but I can't I don't know electronics well✌??

  • how mosfets will automatically turn on and off because it is pwm control circuit not blink circuit with ne555 timer circuit

  • Hi Scott, i saw your schematic of this inverter and i realized that at Q1 and Q3 you connect the 10k pull down resistors from gate to drain and the mosfets stay on all the time!!

  • Wow, I have watched about 90 of your videos, and just went to find you In my subscriptions list, but I forgot to subscribe ?

  • I couldn't afford to buy some of these components to make a diy charger for my phone so I tried putting it in the microwave for 5min. It charged to full, thanks for the help!

  • around the 3:17 mark you mention the "Farad Plate" to place under the coil. What is that?
    Great video!!! Keep up the good work. 🙂

  • Hi Scott please tell me if you see this comment! I want to make the inverter circuit but it's a bit complicated for me! Can i just made the pcb on easyeda, i mean the schematic that you make or i need to make another one with the right components? Please tell me if you see this comment!!

  • Hey great scott, i wanted to give a huge thanks to you because of this video! I'm working on my final school project (everyone in the Netherlands has to do a project of their choice on a specific school subject in the last year of school) and i'm working on a project to charge electric cars wirelesly from the road, this video helped me a lot. Today all my parts arrived and I replicated the circuit of yours. Anyway, keep up the good work and again a big thanks!

  • just a question, could this safely be used to power an Arduino after passing though a bridge rectifier? or would you recommend that I use it to charge a battery that then goes on to power the Arduino.

  • hi greatscott can you pls explain the circuit used here, https://www.instructables.com/id/Arduino-Wireless-Power-POV-Display/..to transfer energy to the arduino wirelessly, because i wanted to create my own and learn how it works. then i found your video i hope you can help me out and educate this tiny brain of mine XD

  • Hello! I have been using this video and the last video on wireless transmission of power to guide my research on Wireless Power Transmission. Could you explain to me why the capacitor in the Rx coil is in parallel and the cap in the Tx coil is in series?

  • here is a link for my DIY energy transfer video and I hope you'll like it

  • This is amazing work, basing a project in school off this. Wouldn't know where to start without this Video. Thanks GreatScott!

  • Man u are really good. I really love those calculation that u do, how can i learn those calculation , i want to learn those maths…

  • I am studying 10th standard and now I got all doubts clarified by you Thank You so much for giving information about wireless Charging

  • Dear GreatScott!
    so about that big red capacitor of yours; does the resonance have to match on both the transmitter and receiver coils? In other words, do they both have to be the same capacity? and also, would that be relevant to the inductance of each coil if they're different?
    or is it the bigger capacitor the better?

  • Hi, please can you make a video with something that requires more power consumption, for example 2000w; is it possible to build something like this ? The source coil to be linked through a circuit to the wall 220v , and the receiver coil with another circuit to be able to power a 2000w home consumer device , wirelessly ; i know it sounds crazy , but is it possible? Can you explain that in a video? What is the mechanics of it? This is the only thing i found on the net but at 60 w only; please reply; regards, john

  • I am working on a project using a wire wound coil to activate a transmiter and receive 18bit digital signal from it once it got activated. the transmitter uses 100khz rf signal to send thise digital bits.

    The previous equitment was no where to be found and only the receiver wire loop left.

    My project is to use a arduino to parse the bits from the transmitter. I remember that the missing equipment was just a tablet and nothing else.

    cancould you please give me some ideas on how to make it work using arduino, much appreciated

  • How can you extend the charging distance between the coils possibly adding 5-10mm in distance? To add a more convenient placement of your device?

  • Hello, GreatScott!! First of all, your work is amazing! I love your videos!
    I have a doubt: whats the purpose of the 10k resistors R8 and R9 in the bridge circuit, since all the MOSFETs used are N-channel? I know it is usual to have this resistors from gate to source of the MOSFETs to discharge the gate capacitance, as you did in the two low side MOSFETs, but i dont understand the purpose of the resistors being placed from gate to drain in the high side MOSFETs. I always thought they should be put between gate and source as well.
    Sorry by bothering you with this questions. Thank you for your grat job!
    Greetings from Brazil!!

  • it works at close range, how to make the energy transfer distance become 2 meters? I hope my question is answered

  • Makes me wonder of about making a adapter for a smart phone that doesn't have the receiver built in. Probably better to stick with the wire plug:P

  • You dont need a complicated H-bridge to send higher current to the receiver. The magnetic field is produced by change in electric current = it does not matter if the current goes forward and backward, important is that it is changing (according to Lenz law). So you will get the same result (or better if using square wave signal) if you had the transmitter coil fed by pulsed DC and only a single tranzistor can do that.

  • Hello sir , i would like know that if we have a coil at home then how to find the best possible q factor frequency?

  • Hi My wireless Fantasy Charger is blinking Red Blue and wont charge the phone. im using a universal wireless charger. After a few hrs the Base got hot and it started blinking. please help. looking to tear down the circuit and modify it or repair it but its all micro circuit and ICs help please.

  • Hai,
    I saw your circuit , i have a doubt
    In your video at 5:13 you connected 10k resistor the upper side mosfet's gate and source but in your easyEDA schematic you connected that resistor to gate and drain !
    Which is true ?

  • Hey! I am working on a similar project. I am trying so hard but get stuck somewhere or the else. Can we please please connect for further details ?

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