Self Running Micro TPU, with closed loop.

[BEP]

Excellent work EM!

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

[mikey]

Hear hear!!

Congrats EM!!

Look fwd to seeing the setup diags mate.

Rgds,

Mikey

[renaud67]

Is it still running  ?

[EMdevices]

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 nightÃ, 

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:

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

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.Ã,  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.Ã,  I plan more experiments tonight.Ã,  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.Ã,  

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.Ã,  I had a sense of wonder holding it in my hand.Ã,   I think I'm on the OU border bumping against the "fence".Ã,  Ã,  I'll break thorough on the other side hopefullyÃ, 

EM

[hartiberlin]

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.