100W capacitive wireless power transfer with Tesla coil

[BSpg]

Hi, Solarlab
Thanks for your support. I'm glad that you like my work.

Your "Basic Tesla's Experiments (Part 1) - 100W Wireless Transmission without Ground Connection" I find quite enlightening and very interesting. Sparks a whole variety of practical application ideas!

Curious - since you have three (3) coils; have you tried one (1) TX with two (2) independent RX?

Thanks, great work backed by very good presentations...

I've tested a lot of different variants, as well as with 2 independent Rx.
The best results were obtained with the variants shown here (2CT or 3CT).

I just added some new details on my blog, especially as regards the reasons why these variants is so effective.
I hope that this could be an additional answer to your question:

Basic Tesla’s Experiments (Part 1) – 100W Wireless Transmission without Ground Connection – SpigelLab


BSpg

[BSpg]

Thanks Ernst

You already have the answer. I'd use a UF5408 (ultra fast general purpose diode for up to 1KV) because I have bought 200 of these in the past and still have most of them, and a capacitor. I also have made a string of 10 of these diodes in series to make sure they can handle the voltage. Use DC and a resistor to measure the forward voltage drop.


Ernst.

I think it is a good idea.
However, it will postpone for later. Much more important to me is to optimize the device to consume as less power with the same effects - metod: go away from the source - or Thomas Barden -don't kill the dipole.


BSpg

[BSpg]

Hi, thx1138

Thank you for this. In particular, it seems to me refreshing this part:

Considering the July 4, 1899 notes, here's what I think Wardenclyffe was supposed to do. The cupola was a huge capacitor to accumulate charge from the generator that was installed at the site. The system drove the voltage up to millions of volts and discharged it into the ground. It would be the same thing as lightning striking the same point on every pulse and by controlling the frequency of the pulses Tesla could control where the nodal points of the waves were located and he could build a resonance by striking that point again just as the reflected wave arrived back at the origin. The planet earth was an integral part of the machine. Tesla even mentions lightning in some of his patents.

I've been studying Tesla's work, especially as regards the wireless transfer of energy.

Currently I study the near field (electromagnetic radiation). I think that near field experiments allow Tesla some knowledge that we need to be able to realize his ideas.

Special 3CT system I consider interesting to study, because it proved to be very effective and has some similarities with Tesla's wireless energy transfer system.
Basic Tesla’s Experiments (Part 1) – 100W Wireless Transmission without Ground Connection – SpigelLab

Spigel

[Nick_Z]

For those that haven't seen the video below...
It is just a very simple Kacher circuit used for the input source, but, this device is a self running one.
Have a look:
https://www.youtube.com/channel/UC8f...HyD8BbUigXubmA

[BSpg]

Hi, Ernst

I'd use a UF5408 (ultra fast general purpose diode for up to 1KV) because I have bought 200 of these in the past and still have most of them, and a capacitor. I also have made a string of 10 of these diodes in series to make sure they can handle the voltage. Use DC and a resistor to measure the forward voltage drop.
Ernst.

UF5408 is a good idea. I tried different diodes and after a few seconds are blown or strongly heat up. I used a diode UF5404 (400V) and proved to be excellent.

You can look at my new video:
Basic Tesla's Experiments (Part 3) - 300W Motor and Wireless Power
https://www.youtube.com/watch?v=zYoHB5HwjeQ

Because is now DC voltage, I could simply measure the consumption of the motor - max. 68.15W (145V and 0.47A). I used the analog instruments.

When is connected the incandescent bulb 60W instead of the motor, I got an interesting result - max 80.6W (260V and 0.31A).




Spigel

[BSpg]

Hi, Nick

For those that haven't seen the video below...
It is just a very simple Kacher circuit used for the input source, but, this device is a self running one.
Have a look:
https://www.youtube.com/channel/UC8f...HyD8BbUigXubmA

I think this is an interesting address for you:
https://www.youtube.com/watch?v=mniHASeuRHk

[Ernst]

Hi, Ernst

UF5408 is a good idea. I tried different diodes and after a few seconds are blown or strongly heat up. I used a diode UF5404 (400V) and proved to be excellent.

You can look at my new video:
Basic Tesla's Experiments (Part 3) - 300W Motor and Wireless Power
https://www.youtube.com/watch?v=zYoHB5HwjeQ

Because is now DC voltage, I could simply measure the consumption of the motor - max. 68.15W (145V and 0.47A). I used the analog instruments.

When is connected the incandescent bulb 60W instead of the motor, I got an interesting result - max 80.6W (260V and 0.31A).


Spigel

It is getting more interesting!
Greg Leyh from Lightning on Demand has done similar tests with slightly more powerful coils. You may be interested in reading his paper on wireless power. (if you can't find it, let me know, I must have a copy somewhere)
Your video doesn't include the measurements, while that is what I'd really want to see.

Play on!


Ernst.

[Nick_Z]

Hi, Nick



I think this is an interesting address for you:
https://www.youtube.com/watch?v=mniHASeuRHk

Yes, and not only for me. That is what is needed at this time.
We need to stop playing games, and really get something self running. Especially now when there are so many people homeless due to wars, climate change, volcanos going off, solar flare, earthquakes, etz... With more to come.
It's time.
Thanks,
NickZ

[BSpg]

Yes, and not only for me. That is what is needed at this time.
We need to stop playing games, and really get something self running. Especially now when there are so many people homeless due to wars, climate change, volcanos going off, solar flare, earthquakes, etz... With more to come.
It's time.
Thanks,
NickZ

Sorry Nick_Z - I wrote wrong - I thought the one who made that video.

I fully agree with your opinion. At the same time I think we need each other to exchange ideas and knowledge to achieve success (without black boxes and hidden cables). With that, we all win.


Thanks,
Spigel

[Nick_Z]

I wish that it was me that made that video.
You might want to post a comment to Poma, instead, on his youtube video, or channel.
The reason I posted the link is because if what is being shown is true, we really, really need to know about it, reproduce it, and get it working.
There is no simpler circuit made that outputs that kind of power, from the input of a simple Kacher circuit,( battery, or no battery), anywhere else that I've seen.
So, to me it is the best bet for the buck. But, there's always a but, and that is that, we don't know all the details. However it's a start. Like I said, if true.

[BSpg]

It is getting more interesting!
Greg Leyh from Lightning on Demand has done similar tests with slightly more powerful coils. You may be interested in reading his paper on wireless power. (if you can't find it, let me know, I must have a copy somewhere)
Your video doesn't include the measurements, while that is what I'd really want to see.

Play on!


Ernst.

Hi, ernst
Thanks for the information regarding Greg Leyh from Lightning on Demand.

Video from the measurements can be viewed at:
https://www.youtube.com/watch?v=p95NknhIICg
Basic Tesla's Experiments (Part 4) - Measuring Power Consumption (300W Motor and Wireless Power)

I used a setting with two coils (2CT) and ground connection.

The result :
maximum wirelessly transmitted power at a distance of 30 cm between the coils L1 and L2 is 69W.
If the distance is increased to 70cm, then wirelessly transmitted power is 46W.
The same measurements I performed with analogue instruments and got the same results. Measurement with analog instruments are not shown in this video.


Spigel

[Nick_Z]

"When is connected the incandescent bulb 60W instead of the motor, I got an interesting result - max 80.6W (260V and 0.31A)".

Was it lighting up as bright as a grid powered 60w bulb, when drawing 80W?

[Ernst]

Hi, ernst
Thanks for the information regarding Greg Leyh from Lightning on Demand.

Video from the measurements can be viewed at:
https://www.youtube.com/watch?v=p95NknhIICg
Basic Tesla's Experiments (Part 4) - Measuring Power Consumption (300W Motor and Wireless Power)

I used a setting with two coils (2CT) and ground connection.

The result :
maximum wirelessly transmitted power at a distance of 30 cm between the coils L1 and L2 is 69W.
If the distance is increased to 70cm, then wirelessly transmitted power is 46W.
The same measurements I performed with analogue instruments and got the same results. Measurement with analog instruments are not shown in this video.


Spigel

Very well done!
Next it would be interesting to know how much power the sending coil is drawing and how much it is affected by the receiving coil.
Also, how would a third coil - a second receiver - influence these numbers. That is both the power in the first receiver and in the sender.
This is probably also influenced by the spacial configuration; sender - rcvr 1 - rcvr 2 (in one line) or rcvr 1 - sender - rcvr 2 or at a right angle etc.

again nice work!

Ernst.

[Nick_Z]

"When is connected the incandescent bulb 60W instead of the motor, I got an interesting result - max 80.6W (260V and 0.31A)".

Was it lighting up as bright as a grid powered 60w bulb, when drawing 80W?

[BSpg]

Very well done!
Next it would be interesting to know how much power the sending coil is drawing and how much it is affected by the receiving coil.
Also, how would a third coil - a second receiver - influence these numbers. That is both the power in the first receiver and in the sender.
This is probably also influenced by the spacial configuration; sender - rcvr 1 - rcvr 2 (in one line) or rcvr 1 - sender - rcvr 2 or at a right angle etc.

Ernst.

Very, very, thanks for all.

Partial answers I gave already 6/8/2016 - but certainly, these questions are important and require the correct answer. In any case, for now I have no overunity.

Regarding interactions more receiving coils with each other will soon make a video. With each new element significantly increases to the complexity of the device and the harder it is to explain a phenomenon.That's why I'm very restrained about it.

Impedance matching - my latest video.
https://www.youtube.com/edit?o=U&video_id=NQ7J04Tr80A

This video shows the influence of impedance on the absorption power of load. For me, this is interesting theme because it is easily possible to make a mistake in estimating the power on the receiving device. I am sure that this video will be useful for many experimenters.


Spigel