Stingo Solid State Battery Charger

[Godfrey]

Here is my new video, you can see my "almost OU", and help
with advices how to make that one step more :
YouTube - one more step.avi

[Godfrey]

I wanted this build of the Stingo to have the complete ability to change out components with relative ease. I'm using TIP41A and TIP42A on the build now. I tested the build to make sure it working properly by powering a small pancake coil and at 5 volts 50mA I was getting 68 volts from the out put leads. I will now be able to start detailed testing. Thanks to everyone for your help and suggestions...

Nice job JiffyCoil! Looks like a very flexible setup. Love the heat sinks...they remind me of spoilers.

[Godfrey]

Oh, and I did have to raise the base resistor from the 10k pot up to 47k ohms to get it to oscillate...

Thanks for your posts, Skaght! Which coils did you have to do this for? I tested a few with a 50K pot myself.

[Godfrey]

It's 32 awg magnet wire. I only did one layer, but now I'm thinking I should do as many layers as I can fit in there, after seeing Godfrey's toroid.

My preference would be to use something a little meatier, like 22-26 gauge. The weaving shuttle winding method makes fold kinks that have to be worked out later as you wind. I tried 32 gauge, but had problems with its delicateness. It kept breaking on me.

[Godfrey]

1.5V Stingo Lights Neon!

Here are my latest test results.

I haven't given up on Coily yet, so today as we speak, I'm in the middle of changing out my transistors for two fresh ones and then will test the old ones on my meter.

So, I swapped out the transistors in my Stingo. And I tested my old TIP2955 and TIP3055 transistors on my multimeter with the hFE function:



Here is a scope shot sampled from the PNP base, which shows oscillation of about 1KC:



Here is a scope shot sampled at the output, showing very sharp, 90+V spikes. The duty cycle is about 1.2 %:



Now to catch up on what has thankfully become a very lively thread!...

- Godfrey

[cikljamas]

Interesting . But I think you should compare it too by using all three to make three stingo and combine it all with FWBR.

Well, what i tried is two stingos and three coils (i wound third one) and
i think this is absolutely ok for the purpose that i need this, and not
just that, i combined it with bedini ssg, and what we got, let see in
my new video...
YouTube - stingo bedini 1
I shot this video two hours ago, and there is still no discharging of my
primary battery...weird...

I hav'nt worked out how to wind a toroid yet it seems to be almost impossible to do an easy way. I'll check the arrangement of componants again and try a different coil.

Farmhand, look, cut 4 m of wire and wind it, then cut another 4 m of wire
and just continue to wind it (of course solder beginning of second 4 m to
the end of first 4 m) and that is it ! I mean if you cut whole 8 m of wire
than it would be very difficult, that is why i swore so much when i wound
my first toroid...Where to find toroid ? As Sucahyo suggested : disassemble
power supply of comp....

I have honestly never been angry at electrical componants before, I thought this might happen. Grrrr. I wanna join the fun. I'll get there, it's what happens when I don't learn the basics I guess, I might have to go back through this thread again, there's probably more than one thing i'm missing.

Thanks

Listen, forget mje 3055, mje 2955, 2n3055...It wont work with those
transistor...Use Tip 31 and tip 32 OR Tip 3055 and tip 2955 !!!
The same mistake took me a bunch of nerves until i found out what
had been wrong with my circuit...Now, at least i could spare your nerves !

[Farmhand]

Hi 7imix, I don't give up, I new it would take a while to understand, i'll try a different coil, the only auto coil I have is a (-R) model with resistor I think so maybe it's no good, last night I tried with a short coil from my other oscillator.

I hav'nt worked out how to wind a toroid yet it seems to be almost impossible to do an easy way. I'll check the arrangement of componants again and try a different coil.

I have honestly never been angry at electrical componants before, I thought this might happen. Grrrr. I wanna join the fun. I'll get there, it's what happens when I don't learn the basics I guess, I might have to go back through this thread again, there's probably more than one thing i'm missing.

Thanks

[7imix]

Bah Stingo won't work for me I don't know what i'm doing wrong, 4hrs and not one song, I check it over and over I must be missing something. I don't like PNP transistors they're strange, I give up for a while to do some reading. Maybe I try tommorow with 1n3055 and mj2955, TIP32c and mje3055 not working for me. Oh well. tomorrows another day.

Cheers

What coil are you trying to oscillate? I have a hard time with certain coils, other coils are easier. I found car ignition coils to be the easiest (plus very fun! watch out, high voltage.)

I have used NTE291 & NTE292, and NTE392 & 393.

[Farmhand]

Bah Stingo won't work for me I don't know what i'm doing wrong, 4hrs and not one song, I check it over and over I must be missing something. I don't like PNP transistors they're strange, I give up for a while to do some reading. Maybe I try tommorow with 1n3055 and mj2955, TIP32c and mje3055 not working for me. Oh well. tomorrows another day.

Cheers

[Farmhand]

Quote:

Originally Posted by skaght
I'm running my stingo/slayer (I've dubbed it the Sting-slay) combination circuit and charging a lead acid battery at ~500 kHz. It has an h shaped output on my scope, and the transistors are both cold--I can't detect any heat from either NPN or PNP.

I'm going to have to check the power in and out on this thing if I can. The circuit is as described earlier with some additional mods. I'm going to have to post a schematic if people want to replicate this. I need to get my camera up and running, or figure out some simple software for drawing circuits.

Yes, please, post the schematic. I tried to replicate it from your description but failed. Looking forward to trying this!

Yes Please me too I would like to look at that too. Sounds like fun.

Cheers

[7imix]

I'm running my stingo/slayer (I've dubbed it the Sting-slay) combination circuit and charging a lead acid battery at ~500 kHz. It has an h shaped output on my scope, and the transistors are both cold--I can't detect any heat from either NPN or PNP.

I'm going to have to check the power in and out on this thing if I can. The circuit is as described earlier with some additional mods. I'm going to have to post a schematic if people want to replicate this. I need to get my camera up and running, or figure out some simple software for drawing circuits.

Yes, please, post the schematic. I tried to replicate it from your description but failed. Looking forward to trying this!

[skaght]

When pulse charging a lead acid 12 volt automotive battery, what voltage is equivalent to a full charge? Do you still charge up to ~14.3 volts?

[skaght]

Sting-slay circuit

I'm running my stingo/slayer (I've dubbed it the Sting-slay) combination circuit and charging a lead acid battery at ~500 kHz. It has an h shaped output on my scope, and the transistors are both cold--I can't detect any heat from either NPN or PNP.

I'm going to have to check the power in and out on this thing if I can. The circuit is as described earlier with some additional mods. I'm going to have to post a schematic if people want to replicate this. I need to get my camera up and running, or figure out some simple software for drawing circuits.

[sucahyo]

I noticed that if i connect two
toroids to my version of stingo i can achieve much better results
charging one battery from another battery, i have to see whether
efficiency raise up in selfcharging configuration, and i have to wind
third toroid to see if it is going to raise up efficency even more than
that with third coil...Coil is the key in stigno raising efficiency much
more than diodes, at least it is my opinion ...

Interesting . But I think you should compare it too by using all three to make three stingo and combine it all with FWBR.

How come you know that indonesian song ?...Yes, there is a lot of similarity, they stole it from mexicans ....

Well, I don't claim it to be. If it is copied from mexico then that song must be a popular song way back at 1940 here

While the efficiency may be less, you can run "slayer exciter coils" on a stingo. You do have to adjust the circuit some. I used C5027 npn and J1943 pnp. The resistor to the base of the PNP was increased to 100k. The primary is the standard coil on the stingo circuit, the secondary is tied directly to the collector of the PNP and the PNP is in normal mode, not inverse mode...

Thanks for sharing .

[7imix]

I posted this on the SEC variant thread as well...

While the efficiency may be less, you can run "slayer exciter coils" on a stingo. You do have to adjust the circuit some. I used C5027 npn and J1943 pnp. The resistor to the base of the PNP was increased to 100k. The primary is the standard coil on the stingo circuit, the secondary is tied directly to the collector of the PNP and the PNP is in normal mode, not inverse mode...

Cheers!

Thank you for the info. I tried my stingo with my slayer and couldn't get it to oscillate. I will try increasing the resistor to 100k and switching the PNP to normal mode.