Solid state Bedini charger from John Peters

[nul-points]

eh bien - je m'triste!   

you didn't read my email, Avril 04?

"it's very interesting - and of course the JT   CCT     is more or less
the basic Bedini cct (eg. in SG motor & SolidState, etc) although in SSG of
course the timing comes from the wheel not from Xfr feedback"

it's ok - c'est de la gnognotte!!!   (sniff!)   

[niofox]

Hi ,

Do you mean that substituting the 1N4001 (transistor base-ground diode) with a 10K resistor and adding a 20k resistor between base and collector could 'work' (= self oscillate and charge another battery) in a 'standard' SSG having his rotor removed???

Or, I'm I missing something??? Core removed?

I have to try it on....

Very Best

Yes it charges the battery in my own experiment, and no longer need a core for the coil either (I am guessing because there are no more magnets to focus the magnetic field on without the rotor).

I have run tests for a few hours now and it seems that without the core it charges only as well as with.  In other words the core doesn't affect charging rate or amp draw as far as I can tell.  I have yet to do heavily controlled testing on this.
I am going to try switching back to a 12v dc adapter (from the 16v dc I am using now) to see how it works.
Eventually I will switch back to using batteries as my primary source when I get this fine tuned

[niofox]

Ok so.  After spending the last whatever hours testing various things here are the results:
12v Adapter (reads 11v when charging) - Very Slow charging / Coil gets slightly warm to touch
16v Adapter (reads 18v when charging) - Fast charging / Coil gets warm to touch
30v Adapter (reads 31v when charging) - Very Fast charging / Coil gets hot to touch

All test were done with 400 ohms on the trigger circuit (where the pot + 100 ohm resistor sit) as this seems to be the optimum charging tweaking for my setup

I would love to leave the 30v adapter to charge my batteries but the amp draw is double that of the 16v adapter which makes it 4x the wattage which is bad for COP.  On the other hand, conditioning the batteries with it could be a very quick job

I am worried about the coil temperature though
Only 30 minutes and the coil became untouchable for longer than 5 seconds with my finger tips
If I leave it longer I think it will get even hotter.  As this coil was hard to come by and I won't be able to get another one for about a month (shipping to my country is costly so I choose slower methods) I think I will stick with the 16v adapter.

When I get 2 of my 12v batteries charged sufficiently I will hook them up in series and see how a 24v setup charges

[guruji]

Ok so.  After spending the last whatever hours testing various things here are the results:
12v Adapter (reads 11v when charging) - Very Slow charging / A gets slightly warm to touch
16v Adapter (reads 18v when charging) - Fast charging / Coil gets warm to touch
30v Adapter (reads 31v when charging) - Very Fast charging / Coil gets hot to touch

All test were done with 400 ohms on the trigger circuit (where the pot + 100 ohm resistor sit) as this seems to be the optimum charging tweaking for my setup

I would love to leave the 30v adapter to charge my batteries but the amp draw is double that of the 16v adapter which makes it 4x the wattage which is bad for COP.  On the other hand, conditioning the batteries with it could be a very quick job

I am worried about the coil temperature though
Only 30 minutes and the coil became untouchable for longer than 5 A with my finger tips
If I leave it longer I think it will get even hotter.  As this coil was hard to come by and I won't be able to get another one for about a month (shipping to my country is costly so I choose slower methods) I think I will stick with the 16v adapter.

When I get 2 of my 12v batteries charged sufficiently I will hook them up in series and see how a 24v setup charges

Hi niofox very interesting results. It seems that not to give too much voltage or you're risking of burning the coil.
Ok thanks yes Nerzdishhual just putting two resitors and taking off the 1n4001. It works.
Thannks

[NerzhDishual]

Hi Sandy,

Yes, I did read your April 4Th email!
No, it was not "de la gnognotte" (a load of rubbish).
Actually, none of your email are gnognotte.
Your Points are never null...

Yes, I also think that all theses CCTs (Bedini, JT) are, more or less the same stuff.

My question was to get a confirmation that a slightly modified SSG circuit (with no rotor!) could "work" (charge another bat).

------------------------------------------
BTW: Thanks to Niofox for all these informative feebacks.
If, whitout the core, it charges as well than with, I'm very fortunate because all my cores are glued!
So, I will not have to dismantle one.
------------------------------------------

As my understanding of electronic is weak, it takes me a lot of time to catch something....

For example, I have just figured out that the attached CCT (from http://jnaudin.free.fr/html/tepcoil.htm) is actually a kinda JT.

I have 'rewritten' this "twisted CCT".
In a classic JT the transistor is used 'common emitter' way (without emitter resistor).
JLN used a it 'common collector' way (just to make it simpler?)

So, next experiments:
1) Modified SSG.
2) Using A JT with 2 (one farad-5 Vols caps) and see I what is going on...

Very Best and thanks again to Niofox (and to Guruji BTW).