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Author Topic: Self Running Micro TPU, with closed loop.  (Read 373923 times)

EMdevices

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Self Running Micro TPU, with closed loop.
« on: November 13, 2007, 05:49:58 AM »
I hope you enjoy my video, I just switched some wires and wow, thing started running on  its own.

Now I'm off to try and scale up.
This thing seems to run for hours, we'll see if it stops over night.

EM

HopeForHumanity

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Re: Self Running Micro TPU, with closed loop.
« Reply #1 on: November 13, 2007, 06:24:56 AM »
I don't know man... Is this for real, or one of your get everybody excited to prove a point... :-\

wattsup

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Re: Self Running Micro TPU, with closed loop.
« Reply #2 on: November 13, 2007, 07:03:13 AM »
FAN-F&?&*N-TASTIC!!!!!!!!!!!!!!!!!!!

Tell me. Are the coils controlling the transistor?
How fast is the led blinking at?

hartiberlin

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Re: Self Running Micro TPU, with closed loop.
« Reply #3 on: November 13, 2007, 07:24:27 AM »
Well done EM,
how big are your caps in this circuit ?

Can you please post a high res picture of this setup ?

Many thanks.
Regards, Stefan.

hoptoad

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Re: Self Running Micro TPU, with closed loop.
« Reply #4 on: November 13, 2007, 07:35:27 AM »
@EMDevices

O.K. Great, now the 64 million dollar question? Are you going to post complete specifications, i.e, schematic, full parts list, brief but accurate description of working circuit, etc, as the wonderful Dr Stiffler and Co have been doing?

If so, really great. If not...........boo hooh for me I guess. :( And anyone else whose curiosity is aroused by your little video!

Looking forward to some follow up from you EMDevices. This TPU idea should be thrown into the same open and forthright light that the thread on Cold Electricity with Dr Stiffler has been receiving. My gut feeling is, that the two lines of research could benefit from a little "cross pollination" of ideas from the groups in each thread.

Anyhow... KneeDeep...will be waiting....KneeDeep..... for more....KneeDeep

Cheers from The Toad who Hops  :)


BEP

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Re: Self Running Micro TPU, with closed loop.
« Reply #5 on: November 13, 2007, 01:39:23 PM »
Excellent work EM!

I can't wait to hear how it stays in the operational band and how long it runs. (hopefully forever!)


mikey

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Re: Self Running Micro TPU, with closed loop.
« Reply #6 on: November 13, 2007, 02:35:31 PM »
Hear hear!!

Congrats EM!!

Look fwd to seeing the setup diags mate.

Rgds,

Mikey

renaud67

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Re: Self Running Micro TPU, with closed loop.
« Reply #7 on: November 13, 2007, 03:03:38 PM »
Is it still running  ;) ?

EMdevices

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Re: Self Running Micro TPU, with closed loop.
« Reply #8 on: November 13, 2007, 03:05:14 PM »
Hi guys, I'll post a picture and tell you more about it later tonight when I get home.

However, you should know that I checked this morning, and the LED was not blinking, so probably it won't last more then an hour, but I won't be satisfied untill it runs over night  :)

The cap I'm using is 1000 uF and if I try to run the LED off of the cap alone (through a 400 ohm resistor) it discharges it from 5 volt in less then one or two seconds.

The two things that are very interesting to me about this circuit are:

   1)  Simplicity (one transistor) and,
   2)  Efficiency, or seeming self running mode (I do feed the energy back)   

I played a bit with a magnet in close proximity to the ferrite toroid and it made the LED brighter so I need to study this phenomena in more depth.  I just got it running in this super-super efficient mode last night, right before bed time, so I just had to let you guys in on the excitement.  I plan more experiments tonight.  By the way, the ferrite also produces audible clicks, but are a bit to soft for the camera mic to pick up from a distance.  

This thing is just awesome to hold in your hand and see it have it's own life beat in it, as if its a beating heart.  I had a sense of wonder holding it in my hand.   I think I'm on the OU border bumping against the "fence".    I'll break thorough on the other side hopefully  :)

EM
« Last Edit: November 13, 2007, 03:50:16 PM by EMdevices »

hartiberlin

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Re: Self Running Micro TPU, with closed loop.
« Reply #9 on: November 13, 2007, 04:06:21 PM »
Hi EM,
how did you start the circuit ?
Just load the cap with 5 Volts and let it go ?

How many hours did it run when you were still awake ?
Many thanks.

EMdevices

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Re: Self Running Micro TPU, with closed loop.
« Reply #10 on: November 13, 2007, 05:41:47 PM »
Yes, I charge the capacitor to 5 volts and plug it in on the board and off it goes.  I had it running for half an hour and then I had to get to bed.   I also discharged the capacitor and pluged it in, which is what surprised me when it started running on it's own.  But we know that electrolitic capacitors come back in voltage somewhat, and this thing can run at 1 volt or less, that's how efficient it is.   I also noticed that at low voltages it enters a mode where the light becomes brighter, seemingly fighting back to stay alive, and charges the capacitor slightly higher.  It's really bizzare.   Somebody asked what frequency, and it's around a few cycles per second, they are so seldom my digital scope doesn't latch on to the quick spikes so I can't tell what the period is exactly, but I would guess between 5 to 10 cycles per second.

EM
« Last Edit: November 13, 2007, 06:09:43 PM by EMdevices »

wattsup

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Re: Self Running Micro TPU, with closed loop.
« Reply #11 on: November 13, 2007, 08:00:02 PM »
@EM

I had put up a small circuit recently on the Discussion thread using a control coil and a collector coil driven with one transitor or relay. Your device reminds of this as I was trying to see if the coils themselves could control the transistor operation naturally instead of using a timer. Are you using a timer on the transistor or is this action totally dependant on the coils? WOW. Even if this is using some power, this is critical in the potential magnet start up of  a TPU. You may try with your cap discharged and add an inductor parallel to the cap and magnet to see if it will start it. WOW again, and again.

EMdevices

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Re: Self Running Micro TPU, with closed loop.
« Reply #12 on: November 13, 2007, 08:27:07 PM »
There is no timer IC, wattsup, 

"..it's a knowledge of the coils (and transistor) and how they interact with each other... "    :D LOL

EM

hartiberlin

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Re: Self Running Micro TPU, with closed loop.
« Reply #13 on: November 13, 2007, 09:12:27 PM »
Hi EM,
looks like your circuit seems to be simular to the Joule Thief circuit ?
http://www.emanator.demon.co.uk/bigclive/joule.htm

Maybe with some feedback  and much lower frequency ?

What kind of core did you use ?

Please don?t let us wait to long with a few answers,
we are already very curious about your genuine circuit !
Wow, if this could be scaled up this would be a real winner !

Regards, Stefan.

EMdevices

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Re: Self Running Micro TPU, with closed loop.
« Reply #14 on: November 13, 2007, 09:54:29 PM »
yes, that circuit is very simular, it's the basic blocking oscillator topology I've been experimenting with.  However, that circuit works at high frequencies like 10 kHz, and it varies depending on the saturation of the core.  What I stumbled on is a low frequency mode of operation that's supper efficient.
I'll get home in about 3 hours and I'll take a high resolution photo.
But please understand that I first need to determine if I have something novel or not, and to just understand it's operation, if it's something trivial that's been published before I'll be more then happy to disclose full diagrams.
I also would like to think that we can scale this thing up.
To answer your question, the toroid is just a ferrite, not sure what kind of properties it has. I bought it at a electronic parts recycle shop.

EM