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Author Topic: Second Stage Joule Thief Circuits  (Read 476910 times)

kooler

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Re: Second Stage Joule Thief Circuits
« Reply #495 on: December 15, 2009, 01:39:50 AM »
hey guys
is ok if i starting posting my circuit in here
its not just a jt anymore
i would have before but i didn't want to slow progress in this section

robbie

Pirate88179

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Re: Second Stage Joule Thief Circuits
« Reply #496 on: December 15, 2009, 01:49:37 AM »
kooler:

Close enough for me, and it started as JT research.  I would like to see your experiments.

Bill

kooler

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Re: Second Stage Joule Thief Circuits
« Reply #497 on: December 15, 2009, 02:18:08 AM »
thanks
will do bill

robbie

innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #498 on: December 15, 2009, 02:34:44 AM »
i say let her rip KOOLER.


this is some koolerization!

lol


i cant wate to pull out the boxes of flybacks  to play .. : )  thease coils are getting boring .. lol

not!

ist!

you see kooler i designed a ring some time ago that has a bunch ... and i hope to sometime have them fire 123456  at highspeed ..   rectify and charge BIG CAPS ... 

l8r

mr.m i have such a board ..  i think i used 10 or 12 cams...  lol   out put 800v...  180ma ..  now i did use a few batteries .. but i can REPLACE ALL OF THEM IF I EVER GET MY CAPS ... lol

1 day .. some day ... 

MrMag

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Re: Second Stage Joule Thief Circuits
« Reply #499 on: December 15, 2009, 03:48:18 AM »
I think the biggest problem here is that you are trying to charge a big cap with a small charger. I wonder if you beef it up to maybe 3 volt, would it charge the cap fast enough to help bump up the 3 volts???

IST,
Fire that puppy up already!!

innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #500 on: December 15, 2009, 07:05:17 AM »
that kinda juice ... 


its gonna hurt .. bad!

so dont touch it .. 

it is packed away ..  ill digg it out ..

william!

this is the board i speek of ..

878vac 428vdc @150 ma

http://www.youtube.com/user/innovationstation#p/u/30/S-NxOrp8gAU

gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #501 on: December 16, 2009, 03:27:44 PM »
PERFECT!!!!

Gadget, did you ever try charging up that cap with a fugi board?
No  but its a good idea..

@kooler

Of Course ! your are about as second stage +as i have ever seen My friend . No need to ask . We need you here! Welcome . I want to replica your stuff i just need some hand full of those neons you got . I got most and scrs ,Hv toroid ,mots ,trans, and junk .
Then i want to apply a fix to drop the input way down . Also i have an idea to step down that Hv to a lower volts and seek high current .. I have a 2 transistor 2n3055 push pull circuit for  driving a flyback and i think we can make this work on 1 volt . I'll post it as soon as i draw it . this circuit is very similar . Changing bias and coils,caps can make this run off of an aa battery .Also tip transistor would be better  . heres a good HV link for some ideas http://www.next.gr/search.php?what=flyback

Gadget

Mk1

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Re: Second Stage Joule Thief Circuits
« Reply #502 on: December 16, 2009, 06:56:50 PM »
@gadget

Second stage you say , i actually got the ssjt idea way back but only suggested it once i saw kooler demo.

If we could get a 60hz out of it , that would be really great.


We also could wire the Jeanna light like the fugi board .



gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #503 on: December 16, 2009, 07:29:53 PM »
Right ,thats why i posted that circuit above . It more stable in a push pull circuit than one transistor . Yes kooler circuit Buzzes like 50 60 cycles if you notice . I assume its the neon trigger to scr .

guruji

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Re: Second Stage Joule Thief Circuits
« Reply #504 on: December 17, 2009, 09:31:35 PM »
Hi guys I had build a toroid on Slayer007 schematic and it's giving me about 90v on the secondary.
How can I use this to charge 12v batteries? Should I add an electrolyte capacitor on the BR and what UF and voltage?
Any help please?
Thanks

kooler

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Re: Second Stage Joule Thief Circuits
« Reply #505 on: December 18, 2009, 01:25:54 AM »
gadget
i use the neons in all my test once i get it to something that i like i will switch the scr or triac and neons for a sidac
if you build this circuit don't forget to have a load on the scr circuit before you cut it on
if not you will blow a cap.. i know a 250vdc poly cap will hold over 1200 volts before it starts smoking..lol
and they stink...
in the video below it shows 29.** ma's that is what charges my cap the fastest
if you don't mind going to like 12-15 hz output you can go way lower on the battery draw

http://www.youtube.com/watch?v=4pM3KhV8daw

gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #506 on: December 18, 2009, 02:31:53 AM »
gadget
i use the neons in all my test once i get it to something that i like i will switch the scr or triac and neons for a sidac
if you build this circuit don't forget to have a load on the scr circuit before you cut it on
if not you will blow a cap.. i know a 250vdc poly cap will hold over 1200 volts before it starts smoking..lol
and they stink...
in the video below it shows 29.** ma's that is what charges my cap the fastest
if you don't mind going to like 12-15 hz output you can go way lower on the battery draw

http://www.youtube.com/watch?v=4pM3KhV8daw
This is perfect robby  . the amp draw is very close to a nornal evilmadscientist JT of 20 ma . Fantastic Discovery on two toroids . I wonder if they are stacked will that be the same . Should be and maybe got more induction ?  Thansk for sharing this awsome cap charger!
Albert

kooler

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Re: Second Stage Joule Thief Circuits
« Reply #507 on: December 18, 2009, 02:53:46 AM »
i not sure how well it will work seems like i tried it
i'll be probably moving to a smaller toroid soon like the 1'' in the same fashion
just to reduce size
or maybe even a e-core

kooler

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Re: Second Stage Joule Thief Circuits
« Reply #508 on: December 18, 2009, 05:25:25 AM »
hey
i was thinking of going back to my first design which was ac.. i just never had the right ac caps to it
right now with a good steady hz a 120v 4w bulb the filament will burn bright red but won't light
so i thinking maybe i losing something in the bridges...
the real reason i posting here is that i was going to tell you guys that with this circuit pulled 105ma's i nearly had it to self run... feeding back off the second stage with 2 turns on a toroid thru a bridge to a run cap would run it for 30-35 seconds after the batt was unhooked
so i was thinking maybe since i got the ma's pull down to 30ma's maybe it will run on its on this time...
ah dreams...lol

hey do you think this place has good cheap meters or don't buy them???
http://www.mpja.com/default.asp

gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #509 on: December 18, 2009, 06:21:24 AM »
hey
i was thinking of going back to my first design which was ac.. i just never had the right ac caps to it
right now with a good steady hz a 120v 4w bulb the filament will burn bright red but won't light
so i thinking maybe i losing something in the bridges...
the real reason i posting here is that i was going to tell you guys that with this circuit pulled 105ma's i nearly had it to self run... feeding back off the second stage with 2 turns on a toroid thru a bridge to a run cap would run it for 30-35 seconds after the batt was unhooked
so i was thinking maybe since i got the ma's pull down to 30ma's maybe it will run on its on this time...
ah dreams...lol

hey do you think this place has good cheap meters or don't buy them???
http://www.mpja.com/default.asp
harbourfreight . 2.99 for a multimeter LCD 2000volt scale backlit . I bought a bunch last christmas . they are great ! I have one a few miles from us . look em up on the internet harborfreight tools . they got some neat stuff.the meters are red and have two types . if you rneed to calibrate them there is a pot inside to adjust the volts to match your other meter . once set its accurate !

Self run it a reality . Get ready !! and you are right if you can get the input down and harvest that Hv In a BCap your self running , I know my circuit will . there are Doubters but they havent build it  :)  Alex will . its so simple it crazy simple.
« Last Edit: December 18, 2009, 02:58:25 PM by gadgetmall »