Language: 
To browser these website, it's necessary to store cookies on your computer.
The cookies contain no personal information, they are required for program control.
  the storage of cookies while browsing this website, on Login and Register.

GDPR and DSGVO law

Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Google Search

Custom Search

Author Topic: Bedini SSG Charger applied to Joule Theif  (Read 12360 times)

Offline d3x0r

  • Hero Member
  • *****
  • Posts: 1432
Bedini SSG Charger applied to Joule Theif
« on: February 14, 2012, 03:36:27 AM »
I'll try to describe this in words....
 
I have these Joule theives that I have been playing with; I wound 1, and it worked, I wound another and it worked, so now I'm way down the way :)  But, off the the collector I have wired in the battery collector of a bedini motor, since the spike I see looks a lot the same, actually much sharper instead of milliseconds, microseconds.... And I put in a battery that was dead, and it was a nice resistance, and the charge slowly increased.  The battery is totally dead, the voltage drained from it quickly; I used instead a few caps so I could capture the voltage, and could charge to like 8.5 from the overdrive return spike to the transistor.  Adding that, however, lengthened the low time of the pulse.  I need another scope, there's at least 4 points I want to see to track the sequence of events, and figure out where the real current draw is. 
 
So then I got clever and was going to use that higher potential, low amp circuit to drive another joule theif.  This potential is above the positive of the original.  I found that if I tried to scope using the wrong negatives used for the ground, I killed the circuit.  I have a secondary coil on the primary joule thief that drives 31 LEDs in series (that's quite some spike from <1.5V).  When I connect the secondary joule theif, it runs, and oscillates rather well (how can I limit the current the secondary draws from the capacitors? ) ; the LEDs go out, and I can power maybe 8 dimly(?) Maybe I get like no power on the primary's secondary pickup?  When I disconnect the joule theif, the LEDs slowly come up to a brightness (as the caps charge?); I can run a lower frequency joule thief from the back emf, if I can find it.  I think I want the diode to the base instead of to the collector.... which is why I want to know more the seqence of events. 
 
http://www.fight-4-truth.com/H.o.%20Simple%20Motor%20II.jpg
(http://www.fight-4-truth.com/Schematics.html)