Joule Thief

[jeanna]

HI Jeanna, hope all is well,

of course, thank you.

here is that double ferrite w/jtwinding in b/t that I asked you about.  I will let you know my results soon.

1-1-20-20

1-1= 22g
20-20=24g

I hope so! this is way too much suspense!!!
before you go away, please explain: why do you have a 1T,1T primary? Or am I not understanding your shorthand.

Mine would mean you have 1T of 1 wire and 1T of another to set the oscillations in motion, then 20T on 1 secondary and 20T on the last, which I would assume is the one on the outside. Is this right?

interesting thing here.
thank you,

jeanna

[stprue]

@Jeanna

Yes that is exactly right, sorry I'm really not very good at explaining things because I get impatient.  I just finished scraping the insulation off(I think), so after I hook it up I will let you know of my results.  I might not finish it tonight because I think I can hook this up (possibly) a few different ways a normal JT cant work.....maybe.  I"m really less then a novice in electronics so we will see. 

P.S. Not sure you noticed but this is a Mk1 modification/I went up and then down!

[Artic_Knight]

>you can propose what you want, it won't change how it work.
Right on both accounts!

>the cap is not a source.
>in parallel with a DC source, it is a storage place for the current.
is it not a source? funny its taking a charge from the battery and powering the curcuit thats an additional load with no increase!

secondly. if its not a source how can we use a cap to power curcuits for long periods of time with the supercaps? and dont say thats different cause its not! sure a supercap may be slower than a regular electralytic which i have not seen any documentation to prove this accusation but for the sake of argument lets say its true. then it has a slower response but that is the only difference.

>a cap is only a load when it is charging, once charged no more current will flow.
>the fact that a cap can provide current does not change that.
absolutely agree!

>the energy is took from the cap only when the battery can't provide the current fast >enough.
>well..., its not exactly true, it is a bit more complicated then this.
>but the end results are alike.

now lets debate this one, if a cap discharges at the same time of the battery doesnt that double the amps? the only way to control that is to actually limit it in a power control and supply curcuit? i mean if twice the amps are available per pulse arent they going to be used? there is no limiter here to the current that should flow!  well none that has been identified as of yet that im aware.

>a cap is mainly use for 2 things when connected in parallel.
>-provide lots of currents in time of needs.
>ex: car amplifiers caps use for subwoofer peek performances.
>-or current filtering(smooting).

in times of need.... so it wont discharge given the chance? seems to me we are giving it 2mhz worth of chances to discharge completely.

yes the filtering or smoothing of current has been addressed but is not a concern for this particular instance.

[stprue]

@Jeanna

Not looking good so far but sometimes you just need to setp away for a while and then re-look/re-try!

[jeanna]

The scope says
20KHz
125Volts between the 2 legs of one of the leds. (I forget if I had the x10 on. grr, I need to check that again.)

This is melting my switches!!

No, I think I put the switch in the wrong place.
Never put the switch in the wrong place.

The remarkable part is that the lights went on even when the switch was ...

very hot. (just as the box says. Hot cinnamons  yikes!)

jeanna