Steven Mark`s TPU

[BEP]

@Otto

Right now my arm-chair is cold.

I can tell you I've found the distance between turns is best at 2.5x the diameter of the conductor - center to center. This is only true when attempting 90 degree induction. The same is true for the distance between the primary and secondary conductor (even though they are are 90 degrees).

The length of the wire for the conductor is not as important as the final circumference.

On the bottom of the bottom collector - there are three sets of control wires - one after the other. I think the order of those wires must be considered. Squeeze and hold then squeeze the second after the first and release the first the squeeze the third and release the second etc. etc.
The final winding should be over the others and not interleaved.

These are my thoughts as I take a break from winding. My first will be as you desribe so I can see what you are seeing.

Did you update your drawing to show the handedness and starting points for the coils? Sorry, I haven't been watching the threads much lately.

Thanks,

BEP


P.S.

On controls - I'm thinking FETS between the feedback and driving coils. Biased ON by default. Gates controlled by thermistors andovervoltage. This will cause less feedback at a point of rising voltage (open load circuit, coil destruction) and zero feedback at a high temperature.

@Otto - it isn't trust for me - it is trying to catch up!

[ronotte]

@Otto,

DITTO

100% agreed!!!!  Having similar waveforms is just the reason why this morning I'm feeling so HAPPY   . Let's hope that many will join us with the fun.

I'll do my best for controlling the beast. You know that is just for this reason I'm still keeping myself  using low voltages.

My Hope is anyway to:

GET RID OF ALL ELECTRONICS STUFF & PS and USING ONLY THE KICK AUTO-GENERATED

Note: Speaking about self-kicks I'm still not sure about what you are seeing as in my case I don't found a repetition rate and so very difficult to spot them on screen, but I'll check it again.

Roberto

[BEP]

@ronotte

Re: your scope shot

I had the same but only above 35V from the PS and zero line was not as low on the waveform. This is why I bought some cork yesterday!

[otto]

Hello,

@BEP,

Im glad that at least 1 of the people here is with us to have a 3 stack TPU.

Today I will have the PS from my workplace at home so I can really enjoy in my TPU work without runaways. Finally. And without feeding the 230V lines.



@Roberto,

without anything connected to the TPU are very sharp kicks at a frequency of 7ms....Hz???

Enough for today, tomorrow is also a day, I hope.

its better for us to concentrate on controlling the beast. Klick sound heared in the video of the 6" TPU??

Otto

[ronotte]

@BEP,

HURRY-UP

I don't know about your PS test voltage, so may be that you used a lower voltage in the range of 6 - 12V. In this case what you are getting is normal.

TAKE ATTENTION: AS SOON AS YOU RISE THE VOLTAGE OVER THE 16V THINGHS WILL CHANGE COMPLETELY - YOU WILL SEE IT AND GET AMAZED!

So handle it with care as you may pay hard: are you using as myself a 100% floating  & optical isolated Mosfet final stage? If ypou are interested I can post my detailed & mature design for it.

Roberto