Bedini Solid State Oscillators

[Sephiroth]

Just completed first COP measurement.

COP = 0.7985

Not bad considering I havent tuned it yet

[Sephiroth]

nothing special except for the coil... Pretty much a standard SSG circuit except I use a capacitor on the trigger side to aid resonance...

[Philosopher]

Sephirot,
Can you post a circuit schematic of your charger?

[Sephiroth]

Update on the toroid...

after 24hours amp draw dropped to 80ma
after 36hours amp draw dropped to 60ma
after 48hours amp draw dropped to 50ma

charging was then pretty much at a standstill at 13.12volts... I was using a desktop power suppy with a constant input voltage of 13.9volts...

I thought perhaps when the charging voltage approaches the intput voltage the current will stop, effectivly halting the oscillation.

To test this i then connected two equally charged 7.2ah batteries, one to charge and one to power the oscillator.

Unexpectedly it is performing normally. Input is approx 300ma and charges the secondary battery over 16volts which is way above the input volatge. Amp draw stays steady... don't know what was causing the steady drop in amps during the first test with the power supply.

First impressions are good... appears to be out performing my previous coils dispite it being a pretty lousy toroid!

COP tests still need to be performed, but does anyone have a good link to where I can learn more about the difference between the magnetic flux in a toroid and a solenoid? I can't really get my head around how the magnetic field is behaving...

[Sephiroth]

Thanks ren! The 555 is a really good idea!

Though I just got the toroid self oscillating last night Hurray! It takes far less resistance than I expected.

I was hoping to see some odd behavior with a toroid instead of using a standard solenoid...

First impressions are good... started it this morning with 1kohm resistance and the amp draw was 300ma... 8 hours later it has dropped to 120ma...

15ah battery has charged from 12.41 (resting) to 12.88 (charging) in that time so it does the job...

I'll leave it for a bit longer to see if the amps continue to drop then I'll get some cop measurements.

[ren]

Seph I have tried. You may have more luck with more turns but I would suggest using a 555 timer circuit, similar to the capacitive discharge try fire a fet or transistor which pulses your primary. Search for 555 tesla coil in google, there is a good site with a simple circuit for a tv flyback transformer. It is remarkably similar to the CD pulser in layout.

[Sephiroth]

anyone tried using a toroid on an oscillator? I can't get mine to self oscillate... it is air core, about 6 inches diameter and wrapped with 4 layers trifilar...

I suspect I may need more turns....

[Karl_Palsness]

I built the Solid State oscillator several months ago. I learned 4 things that might be of interest to some of you. I got better results from the oscillator when I switched to Silver Coated Wire, I think I used 20G or 22G wire. I found that when using a Magnetite core the output was stronger and I used less input energy. The final comment is that in order for it to start oscillating I had to remove one of the 2 magnets and gently drop it on one end of the core to start the oscillating. I used Neodymium magnets on each end with the orientation the same as if the magnets were attracted to each other and the core in the middle. I fingered this out when my core started to self oscillate when I was using it on the motor with the silver coated wire and the wheel was not turning. I have not used this since I started using the same idea on a triode and was getting better results with that. I am still using the Magnetite for my triode core.


Karl

[patmac]

I've tried simulate Bedini Solid State Osc

Thinking on mathematic model of Bedini Solid State, I think can be a little better Bedni Mechanical Osc in some points; because:

If you look Bedini Mechanical, is a oscilating system, but oscilation is not only one frecuency.

Bedini Mechanical OSC (Bedini motors SG, SSG etc) is a oscilator that puch to maximal performance possible, because switching by the trigger coil is near to be perfect; is like a pendulum as said Tesla someday, if you push a swing always in the exact moment, oscilation is higher everytime, only using the same energy in each push. That is Bedini SG for me, magnet pass on the core coil, and the coil push the magnet in the exact moment where the speed is'nt very important, meanwhile Bedini Solid State depend on Coils Calculation and exact solid state oscilators switching.

How do you can to know exact moment to push the swing?

Personally I like Bedini Mechanical because is like a pendulum.

Please if I'm very wrong please reply me immediately and I'll change this post....

Thanks. I'm wating for answers from everybody.... Excuse for my English, I'm learning....

[ren]

Seph, I have switched over to the larger capacitance caps now, though I still have my small 33uF250v solidstate. It seems to charge faster if the frequency of the dump is faster, like say 10 times a second. Of course this doesnt allow for as much of a voltage build up. It will still charge either way though. Im thinking now that the larger capacitance may be the way to go?

[theremart]

RE: struggling with the SS Bedini

I am incredibly puzzled...

Still experimenting with solid state and getting some very encouraging results...

but not the way I want to

My best results have been with discharging high farad capacitors a few volts over the charging voltage. (Aaron's method)

But John uses high voltage discharges so I would expect that to perform better...

but I have just run a 24 hour test discharging a 160uf cap 100v above the charging voltage every second and the battery has only gone up .03v in all that time!!!! when using high farad caps the batteries would be fully charged by now!

These are very well conditioned batteries so I can not understand why the charging effect is so poor with high voltage.

Anyone care to comment?

I have my parts for this on order...

If Aaron's metod proves better I will switch over to building that setup..

Mart

[Sephiroth]

I am incredibly puzzled...

Still experimenting with solid state and getting some very encouraging results...

but not the way I want to

My best results have been with discharging high farad capacitors a few volts over the charging voltage. (Aaron's method)

But John uses high voltage discharges so I would expect that to perform better...

but I have just run a 24 hour test discharging a 160uf cap 100v above the charging voltage every second and the battery has only gone up .03v in all that time!!!! when using high farad caps the batteries would be fully charged by now!

These are very well conditioned batteries so I can not understand why the charging effect is so poor with high voltage.

Anyone care to comment?

[Philosopher]

Hello People!
Experimenting with this circuit,have you noticed the conductive plastic effect and the RF blue/green discharge from the capacitor as seen on the Bedini video?

I want to build the circuit posted here,( http://waterfuel.t35.com/zpe_bedini_solid.html ),But I havent the correct wire size.The best I have is 0,5mm dia magnet wire.Do you thing that using the same copper mass of the original circuit will work the same?.Thank you.

Regards,
Cyrano

[Bodkins]

Last night left my ss charging over night.
Mistake the pulse rate drop so low it drain the primary battery, was reading 5volts in the morning which is a nightmare.(my 555 battery dosent charge like i thought),

So i swap the batterys around one reading 5volt the other reading 12voltish
6 hours later both batterys read 11.50 volt.COOL!

trying over night again will post result in the morning.
good luck everone i can see a breakthouht coming!

[Bodkins]

This is not bedini ss schematic

Hi all been working hard on my 555 timer pulse ss and having some success.
My layout is bi wired coil 555 variable trigger across the emita and base,
the thing is im charging two batterys at different points.

The first charging battery is the standed bedini setup.
the secord charging battery is from the old trigger wire to the 555 battery.
I always thought the trigger on the sg was a waste of energy so by going ss in can use the charge in the trigger!

This solid state can also be used as a sg by using a reed switch to connect the 555 to the E and B. the coil can pulse alot more time with each magnet past like this.

Now im concetrating on the earth battery copper sulphar postive diode and nickel negative. O And condiscaing the batterys.
Hope this helps somebody.


Sorry about he spelling im dyslicsick