UCVC

[nievesoliveras]

It is not  Jeasus it is Jesus.  We must be clear on that.

The transistor 2n2222a can be changed by a tip3055 if it gets too hot during operation.

Jesus

[resonanceman]

It is not  Jeasus it is Jesus.  We must be clear on that.

The transistor 2n2222a can be changed by a tip3055 if it gets too hot during operation.

Jesus

Jesus

Thanks for taking time to draw the schematic.

It is not exactly as I thought it would be.
But it turns out that I have played with a circuit almost  exactly like that.
I didn't play enough with it to get it running like I wanted...... but I did hope to pick up where I left off later.

I was using  a TIP2033 where you have a MOSFET  and  a battery where you have your supercap.
My plan  was  to use the circuit to pulse an external coil........ In theory  almost any coil or ferrite core transformer could then be used as a JT.

gary

[nievesoliveras]

...My plan  was  to use the circuit to pulse an external coil..

Then you must try this other circuit instead.
Be careful with the possible high voltage output.
Post results.

Jesus

[resonanceman]

Then you must try this other circuit instead.
Be careful with the possible high voltage output.
Post results.

Jesus

Thanks  for the schematic.
Have you made this circuit?
WHat windings did you use for the coil?

It is similar to what I have been working on for quite a while.
The schematic looks very simple but it is kind of trickty to do.

WHen I first started out with my flyback/feedback tests I had to use a load to get it to work. I usually used a 60 or 90 LED array.
These arrays are relatively high impedance.
JTs NEED high impedance.
My flyback feedback tests involved adding coils in series in between the JT secondary and the load.
Most of those coils that I added were fed to a diode bridge and back to source.
I usually needed around 9 extra coils  to get the circuit to the self charging state.
The weekness of my flyback/feedback circuits was I had to keep adjusting the base resistance every few hours or it would stop charging .


I have corrected  a schematic that I did a month or 2 ago.
It is my complete JT charger with UCVC.
I did not post it before because it had some mistakes.
I think it is right now.
The violet diode  is optional  in some of the circuits I have made it added up to 2 V to the output. On others it  did not help at all.
This  schematic  is about the basic configuration  of the charger.
I still have not settled on the details of the coils

I can  get to the self charging state by adding  a bunch of small coils together.......or a few larger ones.
I am looking for ways to make a good practical compact coil for this circuit.
So far my candy cane coils are the best I have come up with.
but they are not very compact .....
As with other coils to much inductance will choke the whole circuit.
To little inductance and the JTs voltage will suffer.
With my candy cane coils the # of wraps per toroid and the number of toroids  have to be matched to the circuit.
Maybe  the best thing about my candy cane coils is , you can add more toroids for more power.
OOpps
I better explain that before we get a bunch of vultures in here.



Any toroid will only handle a specific amount  of power .
With  my candy cane  coils you can add more toroids in series.
The output of the voltage seems to be the combined  ratio  of the windings on  the toroids  (Secondary ) and the primary going through the center of all the toroids.
Most of my best candy cane coils  have  lots of toroids with just a few windings on each ( 2 to 4 winding per toroid.)

What I am expermenting with now is using larger wire for the primary.
I need to get more large wire......like 12 gauge
My first tests with larger wire primary's seem to make a difference
( more electrons entrained? )



The bottom picture is of a candy cane coil lighting a 25W CFL
ALthough it is just barely lit up it is only using .118A
at 4.87V = 0.57466W

Transistor  TIP2055
Base resistor 3K
Base pot 5 K but it its lowest resistance .
No tank
42  5 for $1 toroids  4 wraps per toroid .
Primary is 4 wraps ......2 with 12gauge  2 using a previous 2 wrap primary of cat5 bifilar wire.

The CFL will not light up  with the 3K resistor .......bypassing  the resistor lights the CFL quickly.

I am still trying to get  down to 1.5 V .........but it may take a while.

gary

[nievesoliveras]

I am just working with the circuit now to drive a car coil.  I need to play with the components in orfer to get a good spark at the car coil output.

Jesus