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Author Topic: Second Stage Joule Thief Circuits  (Read 478961 times)

jeanna

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Re: Second Stage Joule Thief Circuits
« Reply #450 on: December 11, 2009, 06:09:43 AM »
So Gary,
Will you be connecting the end of one wire with the beginning of the other to make it a JT primary?

I am confused right now, because I do not understand where the secondary will be?
Is the outside secondary going to be sharing a little of the cores of these? I think it must, mustn't it?
It is a similar question I have with my conical wound secondary... or whatever that is.

jeanna
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innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #451 on: December 11, 2009, 06:17:30 AM »
Quote from: Pirate88179 on December 11, 2009, 01:24:53 AM
Here are some photos.  Sorry for the blurr, I was in a hurry as I am still trying to get this done.

Bill

i say i say .... damm!   NICE UNIT!

WILLIAM

i cant keep up

LOL  let her RIP!

THIS IS TOTALLY AWESOME

ILL tell ya why there no w core 140mm cuz mike bought them all ... i sent him this ring a long time ago to NEW YORK IT IS ALL POSTED IN THE JT THRED!  he still never paid 1 dime for my materials to build it ..  ... and so they steal!!!

so i build it better ... WAY THE HELL BETTER !  : )
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innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #452 on: December 11, 2009, 06:31:37 AM »
Quote from: resonanceman on December 11, 2009, 03:10:15 AM
Bill

If  you go to the Magnetics website and  click on  the  Distributor  Inventory button  ( it is 2 buttons above the order samples button ) 
Then  type  the  number for  your  toroid in  49740 will do
You  will find that  no   distributors in the world  have that toroid in stock .
If  you check the next 5 largest  toriods listed   you  will get similar  results .
The largest toroid  available  through  distributors of Magnetics  is 48613   85.7 MM
Not  small but  not near 140 mm  I do not  remember  the exaact numbers but I think there are a few thousand  in stock around  the world .

This is what  I mean by short supply .

Plus ...... if the powers that be  tried to stop  us ......preventing us from getting large toroids would  be  relatively  easy for them .



gary

gary !!

what a wicket idea!

that looks darn kool   just wild ..  i have to build that!  that is simply too kool

w

ps this quote goes with my last responce why there no W core 140 mm cores as mike sent me that core to build it on ... cheep guy probally got a sample payed the shipping got the teck for free ... too bad ... i guess he never knew ... reality is i can tune TO ANY CORE... : )
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innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #453 on: December 11, 2009, 06:52:00 AM »
Quote from: gadgetmall on December 11, 2009, 05:50:41 AM
I am sure this one will produce high volts . I have a 6 turn primary and 7 turn secondary . Its lighting up 25 leds in parallel on the secondary and two on the transistor one  BC led  and one CE all at the same time . have you ever seen one light from both  bc and ce full bright from an AA battery ?

gadget

lol

wonderful


im gonna unwind my 808 and play too!!  lol

ist!

sorry for all the post i just got a little spun ...  lol  tommorow i will make a few coils on the W 140mm
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Pirate88179

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Re: Second Stage Joule Thief Circuits
« Reply #454 on: December 11, 2009, 07:42:33 AM »
IST:

Thanks man.  I am still working on it though.  I hope it works.

Bill
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resonanceman

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Re: Second Stage Joule Thief Circuits
« Reply #455 on: December 11, 2009, 08:03:13 AM »
Quote from: jeanna on December 11, 2009, 06:09:43 AM
So Gary,
Will you be connecting the end of one wire with the beginning of the other to make it a JT primary?

I am confused right now, because I do not understand where the secondary will be?
Is the outside secondary going to be sharing a little of the cores of these? I think it must, mustn't it?
It is a similar question I have with my conical wound secondary... or whatever that is.

jeanna


Jeanna

Yes   I will be connecting  one start end  with the other finishing end  ....... standard  bifilar  JT conncetions .

WIth this configuation  if I was going for  high volts  I would  use the  external  windings  as  the primary  .

I am  going  for  MAX current  this time .
So  I  am trying to get the most volts I can from  flyback in the primary .
SO  I am using the  stack of  toroids as primary .

Once  I get my primary  wound   and  get  a good voltage from it   I  then  go to the  external windings ........the secondary
I  then tune the secondary  to get  the required  output voltage  at  the desired power level .
My  goal  is to have   2.5 V across a small cap  and bridge when I am done .
 
I want to have all the higher  voltage  transformed  into current .........except for 2.5 V

I can then replace the small cap with my Ultracap and I am ready to go .


Once  it is set ..... I should  be able to let it run with no risk of blowing a cap 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

By the way .......   the bad blues are still bad .   I could not  get any real voltage out of them even with  25 winds per toroid


gary
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Pirate88179

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Re: Second Stage Joule Thief Circuits
« Reply #456 on: December 11, 2009, 10:14:57 AM »
Hey, it works!!

I still have some adjustments to make and then I will do a video.  I am using a D cell in these photos but, the cool thing about my magnetic battery holder is that it will work with AAA, AA, C or D cells with no adjustments needed. It is not as bright as I had hoped but, since I used 2 toroids I may have to adjust the primary winding numbers a bit.  Jeanna told me to bench test this first before I put it in the box in case I had to change a few things but did I listen?  No.  Oh well.  I think I can improve upon my light output if I mess with it some.

My camera is still not clear and I need to look into why that is.  Anyway, more later.

Bill
« Last Edit: December 11, 2009, 10:47:47 AM by Pirate88179 »
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gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #457 on: December 11, 2009, 12:59:04 PM »
Quote from: resonanceman on December 11, 2009, 08:03:13 AM

Jeanna

Yes   I will be connecting  one start end  with the other finishing end  ....... standard  bifilar  JT conncetions .

WIth this configuation  if I was going for  high volts  I would  use the  external  windings  as  the primary  .

I am  going  for  MAX current  this time .
So  I  am trying to get the most volts I can from  flyback in the primary .
SO  I am using the  stack of  toroids as primary .

Once  I get my primary  wound   and  get  a good voltage from it   I  then  go to the  external windings ........the secondary
I  then tune the secondary  to get  the required  output voltage  at  the desired power level .
My  goal  is to have   2.5 V across a small cap  and bridge when I am done .
 
I want to have all the higher  voltage  transformed  into current .........except for 2.5 V

I can then replace the small cap with my Ultracap and I am ready to go .


Once  it is set ..... I should  be able to let it run with no risk of blowing a cap 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

By the way .......   the bad blues are still bad .   I could not  get any real voltage out of them even with  25 winds per toroid


gary
Gary  I had some bad blue also . a magnet would not stick to them  and they were like made of alu or something else . . Good job shooting for max current but do not over saturate you transistor or you waste valuable battery current

gadget
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gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #458 on: December 11, 2009, 01:02:46 PM »
Quote from: Pirate88179 on December 11, 2009, 10:14:57 AM
Hey, it works!!

I still have some adjustments to make and then I will do a video.  I am using a D cell in these photos but, the cool thing about my magnetic battery holder is that it will work with AAA, AA, C or D cells with no adjustments needed. It is not as bright as I had hoped but, since I used 2 toroids I may have to adjust the primary winding numbers a bit.  Jeanna told me to bench test this first before I put it in the box in case I had to change a few things but did I listen?  No.  Oh well.  I think I can improve upon my light output if I mess with it some.

My camera is still not clear and I need to look into why that is.  Anyway, more later.

Bill
Hey !! Allright this is a nice setup . I really like those boxes also . the closest  thing i have seen are expensive cigar box full of expensive cigars . over a hundred bucks so i won't go there . The light looks good . and i like the poor mans battery holder It's high tech !

Albert
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gadgetmall

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Re: Second Stage Joule Thief Circuits
« Reply #459 on: December 11, 2009, 04:05:16 PM »
***DELETED*** Information in this thread already .
« Last Edit: December 12, 2009, 02:20:49 AM by gadgetmall »
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resonanceman

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Re: Second Stage Joule Thief Circuits
« Reply #460 on: December 11, 2009, 04:08:32 PM »
Quote from: gadgetmall on December 11, 2009, 12:59:04 PM
Gary  I had some bad blue also . a magnet would not stick to them  and they were like made of alu or something else . . Good job shooting for max current but do not over saturate you transistor or you waste valuable battery current

gadget

Gadget 

I  had not thought to check the blue  toroids with a magnet
The magnet  does stick .....but just barely
I have no idea what they are made of.
If they were aluminum the magnet would  not stick  at all
They also seem a little  hard for  aluminum

Quote

I  then tune the secondary  to get  the required  output voltage  at  the desired power level .


I was thinking  about  the  current when I wrote that post ........maybe  I should  have  said at the desired current level .......but  power seemed like  a more accurate choice.



Your  big toroid looks really good .............but I would like to see you put about  a half pound more  wire on  your primary . 
More  wraps  will make more flux with the same power ....... the  toroid can  handle  the  power ......and  you have lots  free space left on the toroid  .

Scale it up!!!!!!!.

I say fill up that space ......then fasten your seatbelt ....... you aint seen nothin yet

:)

gary
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Groundloop

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Re: Second Stage Joule Thief Circuits
« Reply #461 on: December 11, 2009, 06:53:39 PM »
Albert,

Mail me your JT drawing in a bigger size that was in your document.
I will update the word document and mail it back to you.

I will also need a nice picture of the JT you will use in this project.

Alex.
« Last Edit: December 11, 2009, 10:13:51 PM by Groundloop »
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jeanna

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Re: Second Stage Joule Thief Circuits
« Reply #462 on: December 11, 2009, 07:37:30 PM »
@Gary,
Thanks, I will stand by and watch.
I am not clear how you are using the external thing and how it is called a secondary if it is external??


Quote from: Pirate88179 on December 11, 2009, 10:14:57 AM
Hey, it works!!


... magnetic battery holder is that it will work with AAA, AA, C or D cells with no adjustments needed. It is not as bright as I had hoped but, since I used 2 toroids I may have to adjust the primary winding numbers a bit.

Nice, Bill.
I like the magnet idea.
I wonder what it does to the juice?
I wonder if it improves it?

If I get the chance today, I will try to take an induction test on 2 toroids stacked. This could help.
The trouble is I have 1 without windings, but the other 2 are already wound.

jeanna
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innovation_station

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Re: Second Stage Joule Thief Circuits
« Reply #463 on: December 11, 2009, 08:15:57 PM »
Quote from: jeanna on December 11, 2009, 07:37:30 PM
@Gary,
Thanks, I will stand by and watch.
I am not clear how you are using the external thing and how it is called a secondary if it is external??

Nice, Bill.
I like the magnet idea.
I wonder what it does to the juice?
I wonder if it improves it?

If I get the chance today, I will try to take an induction test on 2 toroids stacked. This could help.
The trouble is I have 1 without windings, but the other 2 are already wound.

jeanna

the external secondary ...  this is your load in a jt ...lol  the led ... lol

you can chain them toagther as  MY CASCADE AMP STYLE UNIT ...  hummmm

dont close the loop  ..  SOME SAY IT GOES TIC TIC BANG ..LOL

ist!

this is how this one works ... insted of the led or cap or battery ...  srtight run through with a fet ...

next coil is tuned to the FREQ OF THE JT...  the jt it rings the big coil ...  the second sw ... opens and closes the door as desired by freq genny

hehehehe

B T OVERDRIVE!   ...     YOU AINT SEEN NUTTIN YET!   BBBBBB  BABY .... YOU JUST AINT SEEN NUTTIN YET!

http://www.youtube.com/watch?v=7miRCLeFSJo

thank you
« Last Edit: December 11, 2009, 09:16:08 PM by innovation_station »
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jeanna

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Re: Second Stage Joule Thief Circuits
« Reply #464 on: December 11, 2009, 09:08:07 PM »
IST,

The video link is incomplete. Please fix it!

Quote
the external secondary ...  this is your load in a jt ...lol  the led ... lol

you can chain them toagther as  MY CASCADE AMP STYLE UNIT ...  hummmm

I am asking where it is wrapped to the toroid of the primary.
It is only a secondary if the wires go around some of the same core that the primary is around.

That was my question.

thank you,

jeanna
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