user TURBO?s replication of Steven Mark?s TPU ?

[hartiberlin]

Hi Dave, as I had always a red LED connected to the collector output coil, I could see, when the maximum power was transfered to the output collector coil. Without the cap there were indeed also spikes in the mixing, but these spikes were not bigger as the maximum amplitude I do get, when I put the cap parallel to the collector output coil.. Then these amplitudes are constant when resonanse is reached and the output will stay at this maximum amplitude and it is a sine frequency wave at around 15 khz. Then the power transfer is maximum and the LED lights from the positive wave hills, which are  around 1.7 Volts in amplitude, the negative also, but there the LED does not conduct....
Hope this helps...
It seems it makes more sense to wind control coils with more than one layer and bigger area, as this increases the coupling and power transfer.
Also wind better the output coil with more windings and bigger sised wire, so you will get more voltage and more current, so more output power !

[mrl]

Stefan,

I have not fired up yet, I did not feel well today and I have to drag myself out tonight to the work christmas party with my colleagues, but I would rather stay at home and work on the TPU, sad isnt it!

I want to fix it to a wooden base and make some terminals because there is 94 wires coming out of this TPU and many combinations that can be had.

Also I cannot get steady effects with my simple 3 way pulse generator I built and I am looking to buy 2 more proper generators to go with my existing one.

Will post more when I can.

Have you been able to see the waves starting to mix in the collector?  I have not used a cap, at this stage I recommend just looking at the waves mixing, not trying to measure the output power, just looking for the DC spikes with the right frequencys first, then you may start running 


D.

X / D,

Your not getting consistent results probably because your oscillators are not stable enough.

I think you would be better off using a synchronous voltage to frequency converter (VFC).  They are infinitely variable and have rock solid frequency stability if you sync them up with a crystal oscillator.  I may build one into the computer controller multi oscillator board I'm going to build, either that or I'll use an XR2206 and stabilize it using a lock loop.

The problem as I see it is this: you must have the proper tools to do this kind of research and people on this forum are not paying attention to this.  If your using unstable equipment then you're just going to be endlessly chasing the dragon's tail.  You need a stable baseline to start with.

You may want to check out the Analog Devices AD7741.  That's the chip I'm thinking of using.  It's worth a couple a bucks and a crystal oscillator unit is worth about $8.00.  You'll need to run the output through a flip-flop to get a 50%  duty cycle out of it but that's no big deal.  Also, to get all the ranges you want you will need to run the oscillator through a divide by N counter.  That will give you your rough rang adjustment, then you do your fine (9:1) adjustments using a (stable) voltage.  You can run four VFCs with one oscillator.

Mike

[CTG Labs]

Stefan and all,

Firstly as you know there is no magnetic coupling between coils at 90 degrees, so please stop looking for it.  The effect is something else...


D.

[CTG Labs]

Mike,

Thanks for the advice, I am aware my generator is not stable enough, but I didnt want to spend several hundred pounds buying more professional ones, so to start with I just build something cheap to play with.  Now I can see something, I shall upgrade for more stability.


D.

[starcruiser]

C0mster,

Have you checked out the wiring plan I posed on page 25? Let me know what you think.