The TPU uncovered? (A PROBABLE technique.)

[pauldude000]

Paul,
I have a quick question for you.  Would there be any benefit to using a Marko Rodin coil?  I always wondered if the winding and geometry to add some benefit.  Thanks

Special geometries can do interesting things, as not only the signal sent through a coil affects the field, so does the shape and manner of winding affect field shape. However, I do not think that the Rodin coil would be special, just because is it based upon fractals and numerology. If it is special, it is going to be because of field shape and interaction. Otherwise, it is the same as many types of toroidal transformer. The geometry of winding the transformer I have seen used in a couple of high power cheap car audio amps.

If you want to try one, try one. I cannot state what it will or wont do without trying it myself.

Paul Andrulis

[pauldude000]

@loner & all

I did some playing around, and have taken and uploaded the pics promised. (I love playing with my cute little driver circuit.) The driver circuit in this case is the output from my 555, run through a parallel Capacitor/air core inductor tank circuit. This I sent though an unloaded air core coil and adjusted the 555 output frequency for desired effect.


First, the voltage enhancement which can come from resonance in an inductor/capacitance. I told someone once how I could easily get AC from DC as well. Here you go. NOTE the DC waveform piggybacking the much greater voltage AC.



Next is something I noticed CLOSE to resonance frequency, right before and after resonance. Note it is still sine, but the same signal is duplicated and PLACED OUT OF PHASE.



This is really interesting and thought provoking stuff.

Paul Andrulis

[pauldude000]

I forgot to mention one thing towards the pictures above.

Both are taken at the same frequency setting ( .2 us ) and the same Volt/div ( 5v/div ) which is evident in any case through the pictures. Picture no 2 (phase difference) is relatively indicative of the voltage of the original waveform.

One thing that is a royal PAIN when adjusting for resonance is the sensitivity of the circuitry at this point. Just the capacitance of the proximity of your body close to any circuitry at this point changes the waveform!!!! (adjusting the pots becomes a chore)

Paul Andrulis

[aleks]

I forgot to mention one thing towards the pictures above.

Both are taken at the same frequency setting ( .2 us ) and the same Volt/div ( 5v/div ) which is evident in any case through the pictures. Picture no 2 (phase difference) is relatively indicative of the voltage of the original waveform.

One thing that is a royal PAIN when adjusting for resonance is the sensitivity of the circuitry at this point. Just the capacitance of the proximity of your body close to any circuitry at this point changes the waveform!!!! (adjusting the pots becomes a chore)

Paul Andrulis

Does it mean you have a three pulse coils on a collector wire arrangement? On pic.2 it seems that the pulse rise time immediately triggers a wide sine-wave segment. The rise time of the pulse is at least 4ns or smaller, is this right?

Probably you should use "solid-state" triggering tied to pulse driver with three independent outputs. Your setup is obviously too sensitive for triggering - any coils are sensitive to ambient EM fields. It's elegant way to trigger coils, but it is unprecise.

[pauldude000]

@aleks

Yes, the rise time is VERY small, as in designing my 555 circuit, I tried for as little variance from a perfect square wave as possible. A theoretically perfect square wave has no rise time, but this is impossible to build in reality. I managed to get it very very close though. The high speed npn transistor's own rise fall/times help stabilize the 555 clocking circuit, resulting in the ability to overclock, and better waveform. My TS555's are rated on spec sheet at 2.7 Mhz, but over 4Mhz is possible with my configuration. A better RF NPN might keep things stable for more Mhz yet, I don't know. There will be a limiting border where the 555 becomes unstable no matter what.

This example is using a 555driver circuit as in the pic, with an inductor/capacitance resonation tank as the driving circuit, testing output through an air core inductor. This is not through a completed collector coil circuit, but indicative of one control coil if you applied it towards such.

555 circuit output + aircore coil and capacitor in parallel = driver circuit

Driver ---> Air core coil in series with driver circuit (unloaded) = test results (pics)

If you want me to draw a simple schematic, I can.

Paul Andrulis