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+--- Thread: Bud T. J. Johnson Electrical generator (/thread-71.html)
Bud T. J. Johnson Electrical generator - kloakez - 01-20-2024
Hello everyone, I am yet to contribute by making a build of some idea. I have became interested in OU only recently and after skimming through some patents and ideas, only a few of them were in the sweet spot of 1/ convincing me they could work, 2/ i have the capacity to understand and build easily, 3/ if they work, they would be scalable and easily reproducible. And out of all that it was this patent that stuck (Figuera was a close second!).
The patent can be found here: https://patents.google.com/patent/CA2357550A1/en
I already tried to build it, but I am really a novice when it comes to building actual electrical stuff. So I tried and failed.
But there had to be a way to simulate the circuit so I actually know what it does and then get the right parts to assemble it. That is where solarlab gave me a big boost by introducing me to Ansys Maxwell.
Anyway, long story short - this is the design - I applied all the upgrades that are mentioned (steel plates in U shape around the output coil, a magnet for closed coupling - connecting the left and right cores).
It is a simplified version that I tried to build with 3 electromagnets and 1 output coil.
I also made a version with 7 electromagnets and 3 output coils, but I have not been able to get interesting results from that so far.
I'll post more soon.
RE: Bud T. J. Johnson Electrical generator - Jim Mac - 01-23-2024
I don't know much about this device, but I am glad you are here sharing.
Please keep us posted on your results.
RE: Bud T. J. Johnson Electrical generator - kloakez - 02-08-2024
So I made some simulations to publish here.
The model is excited using a sinusoidal current as is visible on
If I add some initial current to the output winding, in this case 1 mA, the output looks very different
I found that quite interesting.
I think the gif files do not play. Or at least they don't play in my browser so I will try to attach them. Maybe it will be possible to play them after saving to disk.
RE: Bud T. J. Johnson Electrical generator - unimmortal - 02-08-2024
Cool, this idea is next on my list. A build photo and some specs would be awesome.
RE: Bud T. J. Johnson Electrical generator - kloakez - 02-09-2024
Glad you found the patent worthwhile like me. Unfortunately, I don't have a build of this device yet. I am quite new in building so winding coils, using microcontrollers, H-bridges, using MOSFETs are challenging to me so far. And mainly I didn't know how much of what to buy.
So I made a simulation. The input current is 100 mA, each coil has 1000 turns (he did say a lot of coil turns on the electromagnets Guests cannot see images in the messages. Please register at the forum by clicking here to see images. ) The output generally doesn't look very good. If you want to check the simulation or modify it, I can share the Ansys maxwell project here.
When using square wave excitation nothing interesting happens. Unless I use sinusoidal excitation and set some parameters and by serendipity I get some oscillation that looks like it could do something interesting (as in the last post).
But since it reminds me of Figuera's generator a lot, I looked into that too, and found a lead that explains how time-varying electromagnetic field makes air ions go in a circle (of which there might be infinite amount) and they can be collected at the secondary coil. And there seems to be a way to figure out if that works using a pair of electromagnets, a coil and copper plate or mesh. So I am going to try that first and then see how to take that into account.