Stingo Solid State Battery Charger

[sucahyo]

I thought you use either dpdt or relay, now it seems we have to use both of them ?...I have just one 6 leg dpdt, but as i understand it at the first sight we could use two dpdts without relay and what i still do not understand is how to combine two dpdts with relay, and they have to be 8 leg ?
I just saw you 8 leg dpdt picture, i have to try to figure out how you connect
all that wires together, but is there 8 leg dpdts available in stores or is it
rare one tipes ?

I would call mine as 14 leg. Yours as 8 leg. If you power two DPDT you have 14 leg, same as mine.

I would call mine as four pole double throw, 4PDT. It is rare. But you can use 2 DPDT or 4 SPDT to replace them. You need to parallel all the relay coil so all 2 DPDT powered at the same time.

And another one puzzle is this : i made today your 555 circuit and tested it with my led flasher and the result is next : every 20 sec. relay just turns off (for millisecond) leds, and after that leds continue to flash as before, and i expected that circuit somehow turns off the flasher or stingo or whatever, and after 20 sec. turns on flasher, or stingo..., and again turns off, turns on, turns off, turns on,but the state of turns off should last for 20 sec., not just one millisecond as well as state of turns on which last most of the time, except that little one millisecond...So, maybe missing link is
normally closed contact point which i do not use and i see in your
picture you use it ???

Sorry, I am not clear. You mean 20 second OFF but on milisecond ON?

I forgot to mention that time is 20 second. double the capacitor (22uF) will get you 40.

[cikljamas]

I would call mine as 14 leg. Yours as 8 leg. If you power two DPDT you have 14 leg, same as mine.

I would call mine as four pole double throw, 4PDT. It is rare. But you can use 2 DPDT or 4 SPDT to replace them. You need to parallel all the relay coil so all 2 DPDT powered at the same time.

Well, as i said i have to study all this, then i hope i ll figure out how to put
this all together

Sorry, I am not clear. You mean 20 second OFF but on milisecond ON?
.

No, 20 sec. ON, then millisecond OFF, and again 20 second ON, which means
that torch is always ON, except milliseconds that occur every 20 second of that pointless cycle...
So, it seems that this 555 circuit just turns off the torch every 20 seconds
just for the little part of one second, and after that little part of one second
torch is turned on again !
So, torch is always ON, what i am able to see is just that FLIP/FLOP (OFF/ON)
every 20 seconds !?

[sucahyo]

Well, as i said i have to study all this, then i hope i ll figure out how to put this all together

ok.

No, 20 sec. ON, then millisecond OFF, and again 20 second ON, which means
that torch is always ON, except milliseconds that occur every 20 second of that pointless cycle...

I see. Thanks. I thought I have faulty 555. I use common online version.

I guess I will redo it again with lower resistor value and bigger capacitor. I will let you know tomorrow.

[sucahyo]

I think I will go with this circuit. Test indicate same on and off time. But timing is still not up there yet.

[cikljamas]

I think I will go with this circuit. Test indicate same on and off time. But timing is still not up there yet.

Ok, i am gonna test this circuit too, and see what is going on, but i wonder
if these 555 circuits are able to fulfill our needs (turn on things, and keep them
turned on for certain amount of time and then turn off things, and keep them
turned off for same amount of time and then whole cycle again, and again...)
cause i remember one metronome with 555, and it works so that after some
time one led stops to lit, and another starts to lit in the same time, but there
is no possibility to start that cycle again unless you switch it manually...
Maybe we need some more sophisticated circuits to fulfill our needs or just
need to choose right one, and lets hope that this one is right one...Lets do it
and see...

Cheers !

[Guruji]

Jt with cap

Hi Sucahyo that circuit that you've posted has no charging battery or there's a fault in that?

[sucahyo]

Ok, i am gonna test this circuit too, and see what is going on, but i wonder if these 555 circuits are able to fulfill our needs (turn on things, and keep them turned on for certain amount of time and then turn off things, and keep them turned off for same amount of time and then whole cycle again, and again...)

Last 555 work. But when I use big capacitor (>1000uF) it do weird thing, ON time normal, OFF time is very short !

Back to zero again......

Hi Sucahyo that circuit that you've posted has no charging battery or there's a fault in that?

Sorry, I forgot, you replace the resistor with charged battery.

[Watson]

That is great .

Do you compare it with your own Joule thief?

Yes. I already run it right now and found that it is not good idea to run it full power. I will run it again with lower power.

If we can get stable result, this can be used to compare circuit efficiency.[/QUOTE]

I looked at the schematic and couldn't find the value for the coil. How many turns on what kind of core, etc. Could you update the schematic with this? Thank you.

[sucahyo]

I looked at the schematic and couldn't find the value for the coil. How many turns on what kind of core, etc. Could you update the schematic with this? Thank you.

Sorry, I know only the length. I use 3 meter of wire, which I think too short, but it works.

I use toroid taken from broken power supply. Here is the photo.




I prefer to use FWBR version for charging a battery because I have better charge on battery.

[Guruji]

Jt capped

OK Sucahyo I will modify it to that circuit.
Thanks.

[lancerdoom1]

Did you use this circuit?


5 ohm is very low, mine more than 50 ohm. Maybe you need to use bigger resistor value, 100K or 500K. Can you notice the coil sing if you raise the potentiometer value?

i have used your top left circuit in the picture and i can also rewind the same wire in the coils more to achieve 15 ohm per coil. can i do this?

[Guruji]

That is awesome, what if you put LED on the load instead of battery?

How many leds can I light with this stingo? Did you post any photos of lighting leds with this?
Thanks.

[sucahyo]

i have used your top left circuit in the picture and i can also rewind the same wire in the coils more to achieve 15 ohm per coil. can i do this?

Yes. How much is your input current ? Start with lowest power first.

How many leds can I light with this stingo? Did you post any photos of lighting leds with this?
Thanks.

I use 6 with my 3V version, but 7imix use 20, I think jiffycoil has video although with pancake coil. Always start from lowest output.

[cikljamas]

Hi Sucahyo and others !
I figured out finally how these relays works.
First of all i did not know how much different relays there are, for example
Saturday, i bought two relays (i told you about that before), but today i
was again in the shop and ask for more these that i already bought few
days ago, but guy gave me something else, and this one has 8 pins...

Now, i think, and i am almost sure that when you are talking about DPDT
8 pins, you mean DPDT that is part of relay, DPDT on relay, you talk about
relay, not something apart from relay ?
Only, to accomplish that 2 batteries charger according your diagram i think
we should use two 8 pin relays, or one 16 pins if such is available...

This is 8 pins relay that i am talking about :
PCB Relay G5V-2 | OMRON Electronic Components Web

I succeeded to accomplish that 555 circuit but the problem were the
values of components, especially electrolytic capacitor...
Now i adjust 555 circuit so that when i charge lead acid batt. with
another lead acid batt. i have half minute status ON (charging), and
one minute status OFF , and i charged last 8 hours or so two smaller
lead acid batt. with one big lead acid batt., and after i disconnected last
one hour ago, it seems that batteries are almost full, and primary batt.
lost just 1 hundred of 1 volt...But i am not sure how i could exactly
know if this method of charging is more efficient than ordinary one...

So what is your opinion about this method ?

Cheers !

[sucahyo]

Hi Sucahyo and others !
I figured out finally how these relays works.

Congratulation .

This is 8 pins relay that i am talking about :
PCB Relay G5V-2 | OMRON Electronic Components Web

Yes. DPDT is mentioned in that link . DPDT is relay type.

I succeeded to accomplish that 555 circuit but the problem were the values of components, especially electrolytic capacitor...
Now i adjust 555 circuit so that when i charge lead acid batt. with
another lead acid batt. i have half minute status ON (charging), and
one minute status OFF ,

I have that problem too, but now my 555 just not working, still trying to make it switch on each 30 seconds ....

and i charged last 8 hours or so two smaller lead acid batt. with one big lead acid batt., and after i disconnected last one hour ago, it seems that batteries are almost full, and primary batt. lost just 1 hundred of 1 volt...But i am not sure how i could exactly know if this method of charging is more efficient than ordinary one...

If you have empty batteries before and you have almost full battery that consume the big one only a fraction, then won't you have COP>1 already ?

What if you try it with the big battery start at 11.45V?


For counting COP, how about this method:
- take starting voltage and end voltage of source and load.

COP = charging voltage / discharging voltage
COP = how much the small battery raise voltage * capacity
.........-------------------------------------------------
.........how much the big battery reduce voltage * capacity

Example
= (1.00V * 7Ah) / (0.01V * 100Ah)
= 7

above example COP is 7.


I guess the relay will end up consume more than the circuit lol.