Stingo Solid State Battery Charger

[7imix]

Thanks i'll see if i've got one.

If you have a look at Figure 4 of Tesla Pat. 568 178 , I think that would be the easiest best way to do it. I'm thinking glueing a plastic bolt or something to the back of one plate for adjustment, that drawing Fig 4. Shows the cap plate's on the secondary as a regulating arrangement I think. But since i'm using a car coil output on the primary thats kinda what I think I need, but smaller and closer together. I think I need to try it, see what happens.

http://www.pat2pdf.org/patents/pat568178.pdf

Or if you try it first, make sure your video is taping, so if you get zapped when you wake up you will be able to find out what happened.

Cheers

Thanks for the patent link, that patent looks amazing. It's astounding how many tesla patents there are that I still haven't read... and I've read a lot...

[cikljamas]

Sucahyo, i did not ask you this before, but i know that you remember
how i cooked several batteries with my bingo ?

After that happened i made some measurements and if i remember
well (and i think i do) output of stingo and bingo was the same = 75 V
using same current as well lets say about 300 mAmps...

Now, since i charged yesterday and today several small batteries
successfully with stingo (with bingo i will never again try to charge
small batteries), i tried to figure out why bingo cook small batteries
(positive-negative mode, not negative- negative i used of course with
bingo charging small batteries) if his (bingo) output is pretty much
the same in positive-negative mode as stinogs output except bingos
efficiency is to some extent bigger than stingos efficiency ?

That difference in efficiency should not be the reason for cooking small
batteries, but what else could be that mysterious reason ?

I posted interesting experiment in "this is it" thread, i will copy that
post here too :

how close
Hi guys, i am jealous of your forward steps (a little bit), and i have to
ask you 7imix, what are the chances for you and me to make any
progress with this project using your ghetto toroid ?

I`ve been messing around yesterday with this :
http://img339.imageshack.us/img339/2865/howclose.jpg

And these leds are lightened guess with how much uAmps, not mAmps ?
With 10 uAmps !

In two hours these two AA batteries depleted for guess how much mV ?
For four mVolts !

So, how close to OU is this ?

Cheers !

Cheers !

[cikljamas]

calculations

I just made some calculations on this 5 + 1 leds test...

So, here we are :

This 5 leds torch of mine that i have been presented between Christmas
and New Year drains 9 mA when i put it as a load to 12 V battery and
with two AA batteries (3 V) it drains 10 uAmps, so lets see this in numbers :

0,000010 A * 3 V = 30 uW

0,010 A * 12 V = 120 mW

So how much we spare with this joule thief variation ?

120 mW / 0,030 mW(30 uW) = 4000

So, we waste 4000 times less energy like this....

But since the brightness is not the same lets suppose that this leds
lit 2 times brighter with 12 V battery, it is still 2000 times spared energy,
or if we supposed that 12 V battery gives my torch 4 times more brightness
(and that is the most possible extreme assumption) we would still waste in that
case at least 1000 times amount of energy in this fashion !

Isnt that cool ?

And with 2 mosfets inverter we spared just 3 times amount of energy :

0,5 A * 12 V = 6 W (for/with 15 W bulb)...

So, any comments to that ?

[sucahyo]

Yes, I remember cooked battery. Did you revive them back still with one diode? That is interesting.

Maybe if you can make bingo work in inverted mode, the result would be different. Maybe more conventional electricity in bingo change what being dump into battery.

The difference I see between bingo and stingo is the bounce back current. Definitely something can not be detected has change result. I would also interested to know why.


As for brightness. What if we calculate twice brightness require square of power? Using logarithmic scale?

I still do not understand what you mean.

You propose that using 3V is better for your LED driver circuit?

I look at your photos, is that joule thief and your circuit combined together?

10uAmp at that brightness is awesome !!!

[7imix]

The difference I noticed on the oscilloscope between the stingo and bingo is that the bingo's fall slope is much curvier -- the stingo has a very sharp fall. I plan on building some bingos again when I get back to trying to design a low power stingo, but I have too many projects and not enough time right now... I want to do some stingo spark gap/capacitor experiments, and I have also started a new line of experiments with my Ghetto Coil air core transformer from the "This is it!" thread being driven by the stingo. I was able to charge a capacitor off the secondary through two diodes, and run a dc motor off it -- but the amp draw was too high.

[Guruji]

toroid

Hi guys I did another smaller toroid with thinner wire for stingo but didn't work Why is this maybe stingo needs a thick wire for toroid then?
Thanks

[7imix]

Hi guys I did another smaller toroid with thinner wire for stingo but didn't work Why is this maybe stingo needs a thick wire for toroid then?
Thanks

Are you sure you played with the potentiometers enough? You may also need bigger pots. It really depends what the inductance of the coil is. If it's small, the resistance needs to be small. If it's large, the resistance can be larger.

What voltage did you try? If it has thinner wire the resistance might be too high and trying a higher voltage may help.

[Guruji]

Toroid

Are you sure you played with the potentiometers enough? You may also need bigger pots. It really depends what the inductance of the coil is. If it's small, the resistance needs to be small. If it's large, the resistance can be larger.

What voltage did you try? If it has thinner wire the resistance might be too high and trying a higher voltage may help.

Hi 7imix I tried it first on 4v dead battery then I tried on 12v good battery. The thing is that I did not touch the pots cause I thought it's for all the same.
I have another toroid with thicker coil which works perfectly well. I will adjust the pots and see what happens ok thanks.

[7imix]

Hi 7imix I tried it first on 4v dead battery then I tried on 12v good battery. The thing is that I did not touch the pots cause I thought it's for all the same.
I have another toroid with thicker coil which works perfectly well. I will adjust the pots and see what happens ok thanks.

You definitely have to fiddle with the pots a lot to get the stingo to oscillate a new coil... Another trick is to try changing the pot position and then disconnecting and reconnecting the battery. The initial current surge sometimes kicks it into oscillation.

Do you have a scope? It's really useful for seeing what the stingo is doing, sometimes it's oscillating at an extremely high frequency and you can't hear it doing anything, sometimes it's drawing a heavy amperage of straight DC, which is a condition to avoid.

[sucahyo]

Thanks 7imix.

I agree with 7imix that potentiometer must be changed. Too small gauge may prevent oscillation. I use amp meter to know if there are current flowing in the circuit. Testing voltage of recovery part and hearing with computer microphone. Although sometimes it is above audible frequency.

[sniky]

Thanks 7imix.

I agree with 7imix that potentiometer must be changed. Too small gauge may prevent oscillation. I use amp meter to know if there are current flowing in the circuit. Testing voltage of recovery part and hearing with computer microphone. Although sometimes it is above audible frequency.

I use a small magnet near the coil and when it is on it makes a noise

[7imix]

I use a small magnet near the coil and when it is on it makes a noise

Nice, thanks for the tip!

[Guruji]

Stingo

Thanks guys for help. My fault was that my meter has the battery low and readings is not given correctly. So the resistance on my toroid was very high. I was over 3ohms so when I took off some coil to bring it down to 1.7ohms now no problem. It worked immediately when connected.
Another thing did anyone tried other capacitors for the full bridge?
Thanks

[sucahyo]

I use a small magnet near the coil and when it is on it makes a noise

I wonder if magnet slow it down...

Thanks guys for help. My fault was that my meter has the battery low and readings is not given correctly. So the resistance on my toroid was very high. I was over 3ohms so when I took off some coil to bring it down to 1.7ohms now no problem. It worked immediately when connected.
Another thing did anyone tried other capacitors for the full bridge?
Thanks

Good thing to know that stingo won't work with 3 ohm, thanks.

I now use 220uF 200V for my FWBR capacitor. Did not observe anything unusual though.

[Guruji]

Stingo inventor

Hi sucahyo you're the inventor of stingo circuit?
Thanks