Scope shots of clean kicks

[hartiberlin]

Hi Bob:
   Could you tell me how you have the diodes hooked up.  As in are both cathodes towards the ground side? Would seem correct to me. Just want to be sure.

sugra

Yes. See attached.

For how long is the 300 Volts pulse hold there in milliseconds ?
Many thanks.

[eldarion]

@Eldarion
maybe it is some kind of beat frequency ( Difference frequency of the 1 Khz out of phase signals ?)

Maybe you can better trigger onto this beat frequency ,so one can see it better ?
Does your scope have a storage for the waveforms ?
Then set the timing to very long milliseconds/div and see where the beat waveform occurs.


Please recompress your MPEG movie files to DIVX.com codec or
WMV via Microsoft Windows Media Encoder to get smaller files.

A datarate of 300 to 500 Kbbits/sec for the video should be enough
for a MPEG-4 type encoding.
Many thanks.
Regards, Stefan.

Stefan,

Unfortunately my scope is a basic analog model.  Many times have I desired it to store waveforms....

The beat frequency (for lack of a better word) does something odd at startup though.  It isn't there at first start, then it shows up as a narrow pulse (same frequency, smaller duty cycle), and grows until it is like the video I sent.  I wonder if this is part of the "turbine effect"?  More likely it is just my wishful thinking.

I tried to re-encode the video, but my Windows Media Encoder install is botched up right now.  I'll try to fix it before I send another video.

Thanks,

Eldarion

[bob.rennips]

@Eldarion
maybe it is some kind of beat frequency ( Difference frequency of the 1 Khz out of phase signals ?)

Maybe you can better trigger onto this beat frequency ,so one can see it better ?
Does your scope have a storage for the waveforms ?
Then set the timing to very long milliseconds/div and see where the beat waveform occurs.


Please recompress your MPEG movie files to DIVX.com codec or
WMV via Microsoft Windows Media Encoder to get smaller files.

A datarate of 300 to 500 Kbbits/sec for the video should be enough
for a MPEG-4 type encoding.
Many thanks.
Regards, Stefan.

Stefan,

Unfortunately my scope is a basic analog model.  Many times have I desired it to store waveforms....

The beat frequency (for lack of a better word) does something odd at startup though.  It isn't there at first start, then it shows up as a narrow pulse (same frequency, smaller duty cycle), and grows until it is like the video I sent.  I wonder if this is part of the "turbine effect"?  More likely it is just my wishful thinking.

I tried to re-encode the video, but my Windows Media Encoder install is botched up right now.  I'll try to fix it before I send another video.

Thanks,

Eldarion

Great news that your circuit is up and running with well shaped pulses. Might be worth while seeing if that narrow pulse is affected by the placement of a magnet at various points in your coil.

[bob.rennips]

Hi Bob:
   Could you tell me how you have the diodes hooked up.  As in are both cathodes towards the ground side? Would seem correct to me. Just want to be sure.

sugra

Yes. See attached.

For how long is the 300 Volts pulse hold there in milliseconds ?
Many thanks.

After switch off, the pulse goes to around 550V oscillates around the 300V for around 10% of the duty cycle and then settles at 300V for the rest of the cycle. It will hold steady for around 100 milliseconds and then decays down to a lower level 50v-100V, again depending on the insulation used.

At the frequencies we're using 5000khz+, it gives plenty of time to pulse that steady electric field with another set of pulses  from a bifilar coil. The interaction between two such coils is very interesting.

[bob.rennips]

Bob Boyce on the "Talking about phase' thread has said:

"I do pre-load the toroid with a DC bias on the secondary winding that covers the entire 360 degrees of the toroid. This is typically 155 to 160 VDC, and provides the dipole potential that I spoke of in my post on page 67 on the "Successful TPU-ECD replication !" thread. The incoming energy is superimposed upon this bias supply, which is sent to the load. This dipole potential does not have to be that high, but the higher it is, the more effective it becomes. Testing with this particular toroidal device has shown that bias supply potentials below 11.5 VDC result in below unity performance."

I initially read from this that the output coil should have an applied DC voltage of at least 11.5 VDC but then realised that there is a secondary per pulse unit.

Given that we are trying to transfer the 'kick' responce energy from one coil to the next. It looks like the receiving coil requires a DC bias. I've already proven that serial/isolation diodes will hold the potential on the coil until the next pulse arrives. So when a kick is transferred from the previous coil, the potential should still be held on that coil at a high enough level. Adding a good thin insulator between the layers of the coils seems to help.

Is holding a potential the same as applying a DC bias, in TPU land ?

Roll on weekend. Sometimes owning your own business is such a drag. Can't pull a sicky without loosing income, customers or both....