hello
no high voltage section in this forum.. man what gives..??
this isn't a joule theif .. but it was once the second stage to my jt..

the first video is a bulb lite.. nothing kool.. but it is bright enough


robbie

Robbie,
It is in the solid state section where a hi voltage thing that starts with more than a single AA battery goes.
The original place for the jt thread was there until it got so big itself that it got a section.
Please start a HV jt thread or something like that and give the specs.

or just give them here.
I saw the dc to dc converter there, so maybe that is at the heart of it?

I wonder what one of my jt with 1000v secondaries would look like with 6 volts to start it?

Do you have one like mine that you could try with 6 volts. I do not have the dc to dc converter .
And, even so, I would like to see the circuit. The light is steady on, and that is my ticket for starters.

thanks,

jeanna

Thanks kooler,
I was just trying to squeeze the information from allaboutcircuits today.
I really want to know the simplest thing. It is so simple that nobody thinks I am asking it because it is such a well understood thing.

OK
I know about the time constants.
I know I need to find the right speed charge and throw a switch or like that to empty the cap then it will drop out from the cap and then reset the switch and it will refill.

I also understand that an inductor will act like both the resistor and the switch allowing the cap to fill then discharge.


I am asking how you put these things together.
I do not know how to draw the circuit so that what dumps out from the cap goes where I want it which is the lamp.
I understand the volts and freq of the cap and inductor is the fiddly part. but where is the lamp?
Is the lamp in the same spot and so parallel with the legs of both inductor and cap? Is the lamp in series to those after they do their work?- that is how I had it in my ac from jt circuit.

Since it is fiddly, it is really hard to know if I have put the pieces together wrong when nothing happens, because it could just be that I need to fiddle more.
But, if the pieces need to go together differently, then no amount of fiddling will help me.
OR
Is this such a complex problem that nobody else knows the answer either.
I am starting to suspect the latter.
Today, you got a steady light (no visible pulses) from a bulb.
You called it nothing special.
ummmmm
Can you help me do that or is this something that dc to dc converter did for you, and it was just drawing lots of amps from your battery?

thank you,

jeanna

jeanna
i will post a diagram soon.. the ccfl driver puts off a perfect sine wave then i put a 1n4007 diode
at 5 volts the ccfl driver puts out alittle over 1kv so 6 volts gives.. ?? lol

xee2
i was dumping 960-980 volts thru the triac.. then i blew a cap.. they are rated for 630v dc

but the circuit is dumping around 300 volts the best i can tell in both videos..
i was thinking that was still 980v both i forgot i took the sidac off the neons..
more to come..

robbie

hello guruji
the mpsa06 works good for some reason. i think it cause it cuts off real sharp..


robbie

kooler:

Nice circuit.  How bright would you saw the bulb is?  That is really something, nice job.

Bill

Thank you robbie,

Do you happen to know the volts and frequency coming off the toroid?
I might have the parts I need, if the triacs I got are good enough. I have some high turn toroids and maybe I can just go ahead with this.
Thank you for this clear circuit,

jeanna

hello all
this is the basic circuit lighting a bulb.. using the jt

@kooler

These circuits are amazing...Could you give the current in ma. coming
from a specific battery? Thanks you for posting the schematic.

:S:MarkSCoffman