Self Running Micro TPU, with closed loop.

[Silvije]

@Silvije: had a look on your page. what do you mean by: "once started will continue oscillating indefinitely." I asume you did not disconnect the 3.5V power supply. Only the input pulses, didn't you? thanks...

this is not my page, I just found it by searching net, and thought it might be interesting...

[abassign]

 @Plengo
I am making a your new device, these they are the results for the first two hours of operation:

Number of Test LED: 9 in parallel, tension less 1,6 V, the transformer is torroid with 40 coils + 10 coils.

Time - Volt
10.13 - 7.884
10.19 - 7.955
10.46 - 8.045
...
11.37 - 8.086
11.52 - 8.089

Using a group of 9 LEDs in parallel, that must give the same brightness of the 9 LEDs in test, I have measured an absorption of 7 mA for a reduction of tension of 1,6V.
I have noticed a certain difficulty in to start the system, it is necessary to make a connection with an enough long wire, it seems that these make as trigger for start depart the spike.
From my oscilloscope I notice the spike in 50 Hz Signal. The spike is near 60V, but this measure is not reliable, in how much possible to insert to mass the oscilloscope, is not, otherwise it finishes the phenomenon of oscillation.

I would want to know from @ Plengo if also he has a waveform of this type. The probe is put at transistor base.

[plengo]

@abassign
thank you man. It is good to see that I am not the only craizy guy here. So you are having the same effects that I see Correct? Voltage increases if you leave it on the device.

The pictures are the osciloscope signals that I got from different versions. One probe on the base of the first PNP transistor. Tdiv=5ms. Vdiv=.5.


Concerning another question of yours: my 6.16v was the steady voltage of the battery after 24 hours BEFORE I put on this device than it increase its voltage as time passed.

@hoptoad
I would accept that too (the electric field altered by my body). It is difficult to accept thought because I have not seen this effect on other oscilators that I have built.

I will run some tests on my new load tester toy. Charge the battery and discharge over the load. Actually I am measuring the output of the battery as it runs the system and will measure on the load CPU tester.


@all
concerning specs of the battery: it is a NIMH 9v rechargeble battery.

Fausto.

[Rosphere]

@plengo,

Thank you for openly sharing your designs with us here in the forum.  I think that you are doing a great job.  You need not be so critical of your own work; other folks will do this for you. 

@ plego no problem some folks never get it they just pic at whats not there because they can't e inovative har har har   thank you you don't have to tell everything ,,daah that way some onee hass to do some brain farts

I am having no brain farts today.  I tried to make your circuit last night and it failed to light the LEDs.  So, I hope you do not mind my picking on you but I have two areas that I would like to ask you about.

Is your PNP symbol correct with regard to arrow direction; you are not using an NPN, are you?


Secondly, can you provide some more details about your coils?  I see that you are using a custom coil wrapped on a bolt.  It is hard to see the coils in the images because of all the tape.  I am probably wrong but it appears that the two coils are wrapped in a side-by-side fashion?

Sometimes I do not record wire length and number of turns when I make a quick coil.  If you have that information, that would be great.  If not, may I ask for the ID, OD, and length of the coils?

Oh, and wire gauges would be nice too. 

Thank you,
Rosphere

(Sorry if you have some of this information already posted here.  I looked over the many pages here in this Self Running Micro TPU, with closed loop topic and could not locate the answers.  It would help, as others have suggested, if you started a new topic.  Your design merits a new topic.  I have seen newbies post brand new topics every time they have a question about something.  Then I have seen folks, like yourself, post interesting new projects but buried inside someone else's topic.  Go for it; start a new topic.  You deserve it.)

[plengo]

@Rosphere
oh my goodness. I am totaly embarrased  . Thank you for correcting me. I updated the other posted photos.

The coils are the same for the Bedini SSG project at yahoo. They are 23 and 26 awg. Bifilar and about 1800 turns. I know it is a lot and I dont think you need that. Most probably a much smaller coil will do. I also tried with one side coil of my relay (http://www.radioshack.com/product/index.jsp?productId=2049722&cp) and it worked too. Thats why I have not said anything about the coils. Any coild will do but than you will have to find the resonating point and base transitor point where it will trigger. It seams that with my big coil it start right away.

Concerning another topic, I thought about it, but this thread here seams to be very related to what I am doing which is make it run for a long time. If we could make the cap or even a very small battery run itself up we could make this mini-TPU work but if members here really think I should open another topic I will. I could create a survey!!!! 

Fausto.