Bedini SSG - self sustaining

[plengo]

Some photos of the voltage across the battery terminals. It is 0.05 volts/div. Center screen is 0 volts.

Photo 1 show this very high spike negative pulse. I think it is about 100v spike.
Photo 2 show the differential of a spike going up (using energy from the battery) and spike going down (I think energy going back to the battery). It seams that the spike going down is bigger than the one going up (which should match the fact that the battery is charging).
Photo 3 the same as photo 2 just in a different time frame.
Photo 4 the same as photo 2.
Photo 5 is a zoom of the switching ON and OFF when no spikes are happening.

All photos were taken with the camera on a stand and later I choose frames from the video taken and assembled the sequence of consecutive pictures into one photo. I used Photoshop for changing the clarity of the photos and nothing else. No manipulation of any kind. I also could have done the same with a gif assembler and have a moving picture for all but still photos are better.

I also had to increase the scope's beam intensity so that the camera would pick up the waves better so that I could put them together in photoshop.

Also current is fluctuating between 10 uAmp to 110uAmp. Circuit used is the last photo. I am not switching all of the transistor showed, only the ones presented on the code snipet. Cap C1 will be fluctuating from 44.1 volts to 44.5 volts and cycle again. Total system voltage is about 55.67 volts and increasing an average of 0.001 volts per 15 minutes or so.

Speed of PIC is set to 20 mhz but I am not really sure how fast it is repeating the code below. Strange by the scope shots is the non deterministic (at least at first) of the high pulses since the code is always the same for the whole process.

---------------------------
Start:

bsf SW11           ; turn ON
bsf SW12           ; turn ON

call delay100mS ; delay for 100 mili-seconds
bcf SW12           ; turn OFF
call delay500uS  ; delay for 500 micro-seconds
bcf SW11           ; turn OFF
call delay100mS ; delay for 100 mili-seconds

bsf SW9             ; Turn ON and leave it ON forever
call delay500uS  ; delay for 500 micro-seconds

goto Start          ; repeat forever
---------------------------------------
Fausto.

[Magluvin]

http://www.youtube.com/watch?v=lkxRNhPG2sE

Got my reeds in. They are bigger in person. Just made a shot vid to show them. Ill be trying them later.
Mags

[Groundloop]

Fausto,

What is the timebase of your scope shots?

Groundloop.

[gyulasun]

Fausto,

A similar question: in your picture # 1   (1.jpg) the vertical scale is also
0.05V/DIV?
If you say it is about a 100V pulse, then the negative peak of that pulse is way down the scale, right? 

Also, in your schematics there is a 61.5V written between D1 and B2, where is that voltage? or it is irrevelant.

thanks, Gyula

[plengo]

@Groundloop

the horizontal was 0.01 seconds. Vertical was 0.05 volts / div. The last scope shot was .5 pico-seconds.

@gyulasun

the voltage on the diagram is the total of 5 12.5 volts batteries at an average of 12.3 volts each battery. In reality my circuit is running at 55.7 volts. So my batteries are pretty much depleted.


Fausto.