I have to wonder if the different shape of the both coils could affect efficiency. Or possibly a curved aluminum reflectors on the receiver. More experiment needed to be done on this topic, I find these experiments fascinating.
Wow, you make simple projects look really cool. I hope you will succeed with your future project of powering a drone from a distance. Best regards from Philippines👋
Nice! If you did this vertically then you could put the circuits around the loop and also mount drone fans around the ring (using 3D printed mount points). As long as you have something stabilizing the whole thing then you could start flying up wirelessly to some degree (especially if you get a lighter hoop). Not sure if you could also put solar cells in the middle (or around it) with a light 3D mesh to add to the power as well..
You didn't mention it, but I imagine the frequency you use will have a big impact on distance/efficiency. Since the copper loop is essentially a loop antenna, carefully selecting the frequency the LC tank resonates at could allow you to make the antenna resonate aswell and get better performance.
Yeah, both the transmitter and receiver are identical LC circuits that are in resonance. Without resonance i probably get like 1/10th the power shown in the video
I get that the LC circuits are matched. But I'm not talking about oscillator resonance. I'm talking about ANTENNA resonance. Just like how you want to size a dipole to be 1/2 wavelength to get the best radiation pattern. Since you're using loop antennas, the diameter-frequency relationship could greatly affect power transmission.
@@BenjaminMarshallScienceMan Oh i see. Yeah, that would probably work, but judging by the loop geometry i'd probably need to be running 10's of MHz or so
Yeah, I was thinking about how much higher of a frequency you'd need for such a small loop. It might not be the easiest thing to drive. Still, I'd be curious to see how far a giant loop could transmit usable power doing that.
@@BenjaminMarshallScienceMan I'll have to try it at some point. I'm currently trying to build a high frequency driver (~15-20 MHz) that can push several hundred watts for projects like that, but it's proving to be very difficult to get much beyond 10 MHz with regular FETs/BJTs
Well i learn all about it : - its only an electric magnetic field That push up with the npn transistor by Ac current - where you can lay the copperwire inside this field there is no wireless energy ... But can we push it up with ozilators for mhz frequenz and Antena to send? 🤔🤗
I'm curious as to why you chose to use one loop of wire as opposed to multiple. Was this to lower the inductance of the coil? If so, couldn't you run the driver at a lower frequency with the higher inductance to achieve the same current? Since the magnetic field intensity is related to the current through the loop, I would think more turns of wire carrying the same current would sum together for a higher flux density. (I am probably missing something critical here, right?)
I had a lot of it laying around, but it also makes sense from an economic standpoint, because skin effect at high frequency AC causes current to only travel through a region a few tenths of a mm from the surface of the conductor, so thin walled tubing works very well. There's also the advantage that it can have water pumped through the inside to keep it cool
If your goal is to power a drone, you'd be better off with a laser and solar panels or microwave transmission. Unless the drone will fly a path like hovering tracks...
I have to wonder if the different shape of the both coils could affect efficiency. Or possibly a curved aluminum reflectors on the receiver. More experiment needed to be done on this topic, I find these experiments fascinating.
Wow, you make simple projects look really cool. I hope you will succeed with your future project of powering a drone from a distance.
Best regards from Philippines👋
Nice! If you did this vertically then you could put the circuits around the loop and also mount drone fans around the ring (using 3D printed mount points). As long as you have something stabilizing the whole thing then you could start flying up wirelessly to some degree (especially if you get a lighter hoop). Not sure if you could also put solar cells in the middle (or around it) with a light 3D mesh to add to the power as well..
Tu merite 1000x plus d'aboner pour toute tes video tu es super ne change rien
amazing explanation
Sweet experiment. I love 10mm leds haha
Bagus sekali pokoknya,saya suka
Nice👍
You didn't mention it, but I imagine the frequency you use will have a big impact on distance/efficiency.
Since the copper loop is essentially a loop antenna, carefully selecting the frequency the LC tank resonates at could allow you to make the antenna resonate aswell and get better performance.
Yeah, both the transmitter and receiver are identical LC circuits that are in resonance. Without resonance i probably get like 1/10th the power shown in the video
I get that the LC circuits are matched. But I'm not talking about oscillator resonance.
I'm talking about ANTENNA resonance. Just like how you want to size a dipole to be 1/2 wavelength to get the best radiation pattern. Since you're using loop antennas, the diameter-frequency relationship could greatly affect power transmission.
@@BenjaminMarshallScienceMan Oh i see. Yeah, that would probably work, but judging by the loop geometry i'd probably need to be running 10's of MHz or so
Yeah, I was thinking about how much higher of a frequency you'd need for such a small loop. It might not be the easiest thing to drive.
Still, I'd be curious to see how far a giant loop could transmit usable power doing that.
@@BenjaminMarshallScienceMan I'll have to try it at some point. I'm currently trying to build a high frequency driver (~15-20 MHz) that can push several hundred watts for projects like that, but it's proving to be very difficult to get much beyond 10 MHz with regular FETs/BJTs
A job well done! Im curious if you could plot efficiency of the wireless power link vs distance ?
Awesome!..am looking at wirelessly powering a rotating 24v heatbed on a large polar 3d printer..any tips?
That is really short distance! Can the distance and frequency be increased!
Well i learn all about it :
- its only an electric magnetic field
That push up with the npn transistor by
Ac current - where you can lay the copperwire inside this field
there is no wireless energy ...
But can we push it up with ozilators for mhz frequenz and Antena to send? 🤔🤗
Benarkah prolon tembaga bisa saling menginduksi?
I'm curious as to why you chose to use one loop of wire as opposed to multiple. Was this to lower the inductance of the coil? If so, couldn't you run the driver at a lower frequency with the higher inductance to achieve the same current? Since the magnetic field intensity is related to the current through the loop, I would think more turns of wire carrying the same current would sum together for a higher flux density. (I am probably missing something critical here, right?)
I had a lot of it laying around, but it also makes sense from an economic standpoint, because skin effect at high frequency AC causes current to only travel through a region a few tenths of a mm from the surface of the conductor, so thin walled tubing works very well. There's also the advantage that it can have water pumped through the inside to keep it cool
Ciao..From ITALY...
Potresti provare a sviluppare la macchina di MAIORANA ETTORE...
In 7:30 i have same problem i use irf840, but when i use dc power supply i get cc!
Ever consider a microwave source and a rectenna?
Hello,
Can I use a HF inverter module to apply a 20Khz pulse wave to the transmitter coil instead of the transmitter driver circuit?
HI! how many ampheres did you use in inductor? Thank youuu
Doesn't ZVS driver change the output frequency dependent on the load?
Sir my circuit fail to run when irf640 mosfet become. Too hot . It becomes hot after 20 s always what can i do ??? Plz help me
Please Help us To do Our project like That .
We cant transfer the Power
We Always Fail .
What if u put the capacitor on serie!?
Can I replace the transmitter part with a zvs driver
@HyperspacePirate >>> 👍👍
Diagram bro?
What is the exact name of your resonant capacitor?
spec of d2 and d3 sir
Is the transmitter a zvs driver?
yes
APRES VOTRE PASSAGE ILS APEL LEURS SIEGES POUR DEMANDER DES PERMITIONS DE TUER MDR SA C'EST QUOI SA
Are you acquainted with radiant energy? Secretly of course.
If your goal is to power a drone, you'd be better off with a laser and solar panels or microwave transmission. Unless the drone will fly a path like hovering tracks...
Hello, can i contact you?