Agentgates´s TPU setup with strange wavehill hump

[Mk1]

@agentgates

You made one with 36 turn coil , i wish i could make one also , could you give me the height and diameter , We need to make a ratio of it so people can make them with 36 turns.

Mark

[agentgates]

Some important information for those who were in trouble with receiving the shown spikes. The following can be useful to find error:

1. Set your scope trigger to the output signal (first without load) and single shot capture, not continous.
2. Fire one primary coil at a time.
3. Make sure you use current limiter resistor on it (15-27ohms depending on your configuration) if you dont want to cook your coil/fet/transistor.
4. Input current should never go above 500mA as it will cause unnecessary heat and loss, input voltage above ~5V should show you that hump growing out the straight line. (length 500ns, but ignore, you will not need higher frequency)
5. When you have the hump, you can connect it to your pulse generator and set it to a low freq range, like 1kHz or below. (the scope shot I sent recently was taken at 87 Hz/50% and 3 phase, that is why we got those 2 more humps jumping out rapidly)
6. If still nothing, change polarity on the primary.
7. Mind that you put the scope probe's POSITIVE is on the POSITIVE output of your coil and you are triggering the positive edge.
8. If still nothing, check the winding direction and compare it with my photos. Left handed on both.
9. Check the spacing and that each turn on a single primary has done the 360 degrees with 10 degrees spacing.
10. Check the spaces between the secondary.
11. If still nothing, you are probably using soft wires and/or plastic covering on it that increases the space DRAMMATICALLY between the Primary/Secondary. Remember the intersecting area should be as small as possible but also as close as possible between primary/secondary.
12. If still nothing, remove the secondary and put a SINGLE turn of it on and get through this list again.
13. If still nothing, take a walk in the nature and watch birds for a few hours. Then come back and go through this list again.

[gotoluc]

Hello all,

@broli

no I dont have a working TPU in this moment.

I have only coils that are only working when flipped up side down.

Otto

I don't about everyone here but I would love to see a video of just that effect alone

Can you make a video for us Otto?

Thanks for sharing

Luc

[Magluvin]

Would it not make sense to just have the 3 primaries in series? I see from the beginning that the size of the primary keeps getting thinner as to reduce the ohms to reduce load current.
But we really dont know for sure that the spacing is optimum. Where do we have info to determine that criteria? Maybe it need an inch between windings. Maybe an inch and a half. 

If anyone has the equipment to test, a single primary, or even just a length of wire should show a continued dc output after the pulse is removed. If what is being said about the dc on the secondary is so.
Now if we confirm that there is a continuation of dc after the pulse, then we lay down a second length of wire next to the first and see what distance causes the inertial dc to be lessened. This will determine the spacing.
A good scope should be able to show what is happening in the wire after the pulse is removed. If it works at 100hz to what ever hz then the effect should be clear in the test I have laid out. And then string another wire across that lengths of primary at various angles to test the affect on the secondary to get a proper angle settings.
Again, at 100hz or 1000 hz, a scope should indicate what is happening.
I dont have a scope. But these are the experiments I would have gone for as I stated earlier in this thread.

Magthinks

[agentgates]

@Mk1

I don't know what you mean under 36 turns. In my interpretation, when you finished with one primary coil, you will have to see 36 wires inside and outside. altogether 72 - to be more specific.