Bedini Solid State Oscillators

[Inquorate]

Vtech - I've got an air-cored solid state sg that Ren gave me, and when I hooked it up to an scr cap pulser, I had to keep the cap below 3uF as well. Otherwise, same problem, scr stays latched on.

Reading your post, I'm supposing it is mainly a problem with air cores? That's interesting.

[blackchisel97]

Air coil SS

Hello folks,

I was wondering if someone tried to experiment with solid state air coil and what the results are to compare. I just built another one and it works fine but I can't get the cap pulser to work well. It does with small cap, such as 2 - 3uF at the bridge but anything like 20 - 50uF causes SCR to stay "latched" all the time. As a result I'm basically charging off the bridge and there is no potential build up in the cap. I'm using inverted SCR triggered off the darlington opto and HV transistor. Probably couple MOSFETS will solve a problem but don't really want to go this way if don't have to. I also tried this with a reversed trigger as I did with "cored" SS and SG but it doesn't work with air coil, at least for me.


Vtech

[nvisser]

I have been getting interesting results by using a transformer on the mainsm stepping down to around 12volts AC, then a bridge rectifier, on to a beefy IGBT which is given a square wave signal from a commercial signal generator, presently 100 cps, the chopped 12 volts is then fed into a 50 volt to 240 volt transformer, into the 50 volt end, thus getting a high voltage spike from the 240 volt end. The charging of lead acid accumulators and reconditioning, is amazing, however the transformer is losing power when the frequency is raised to say 1000 cps, is there more to be gained pulsing at higher rates? how high should one go? I could get a dust cored transformer if there is more to be gained at higher frequencies. Any answers out there please

This sounds like a dangerous device!!

[peter dunbar]

Battery charging from the mains

I have been getting interesting results by using a transformer on the mainsm stepping down to around 12volts AC, then a bridge rectifier, on to a beefy IGBT which is given a square wave signal from a commercial signal generator, presently 100 cps, the chopped 12 volts is then fed into a 50 volt to 240 volt transformer, into the 50 volt end, thus getting a high voltage spike from the 240 volt end. The charging of lead acid accumulators and reconditioning, is amazing, however the transformer is losing power when the frequency is raised to say 1000 cps, is there more to be gained pulsing at higher rates? how high should one go? I could get a dust cored transformer if there is more to be gained at higher frequencies. Any answers out there please

[sucahyo]

Be sure to google for part 2 of the guide. It has even more info.

Yes, I post the second part first. There is also other good Bedini material at panaceauniversity like:
JohnBedini_SG_posts.pdf
Bedini-interview-06-Apr-2008.pdf

siteanaceauniversity.org filetypedf bedini - Google



BTW, I implemented magnet to make the coil core neutral magnetic zone, and it seems to increase the capacitor self charging property. Currently experimenting on battery. Based from:

What we actually want to do, Dr. Bob, is make that magnet become nonlinear. So we pulse the coil to make it nonlinear. What we’re actually doing is opening a window in the magnet which is termed the “Bloch Wall.” The Bloch Wall is the space where the two poles come together in the center of the magnet. That’s where the energy comes from, from this zero field that’s in the center of the magnet, where the two poles – top and bottom – are in balance.

Anyone has picture of core coil in between two magnetic pole, I remember seeing it in this forum? Maybe MEG?

[theremart]

RE: starters guide.

I have document for a while after downloading panacea document, I regret I don't read it right away, it would save me from doing a lot of thinkering...

The part one link:

http://freenrg.info/Bedini/SSG_STARTERS_GUIDE-One.pdf

BTW, here is video showing me recent test with core type:
YouTube - Coil core voltage measurement

Showing that air core give the best radiant output voltage. A little bit of iron reduce the voltage significantly, just as small ferrite. But iron and ferrite give more induction to surrounding. Without core the secondary receive less induction.

I think air core is the choice if we utilize only the primary. If we must use core because we utilize the secondary, ferrite is better choice than iron.

Be sure to google for part 2 of the guide. It has even more info.

The guide came from the old yahoo SG group now defunct. John posted much info on that group before he left it to goto the other groups.

Cheers

[sucahyo]

Different result with load

I found out that with load, having core is actually better. It charge the capacitor faster.

YouTube - Loaded coil core voltage measurement, revised conclusion

Oops, I forgot that faster charging may not be better.....

[sucahyo]

I have document for a while after downloading panacea document, I regret I don't read it right away, it would save me from doing a lot of thinkering...

The part one link:

http://freenrg.info/Bedini/SSG_STARTERS_GUIDE-One.pdf

BTW, here is video showing me recent test with core type:
YouTube - Coil core voltage measurement

Showing that air core give the best radiant output voltage. A little bit of iron reduce the voltage significantly, just as small ferrite. But iron and ferrite give more induction to surrounding. Without core the secondary receive less induction.

I think air core is the choice if we utilize only the primary. If we must use core because we utilize the secondary, ferrite is better choice than iron.

[citfta]

Starters Guide

Thanks Sucahyo, that is great document!! I have been studying Bedini for over a year now and have built several variations of his radiant chargers. I have reconditioned a lot of batteries also using his technology. But I have never seen that document before. Where did you find it and are there any more? Thanks, citfta

P.S. I just looked at the site address. Duh!! I'm still asleep I guess.

[sucahyo]

Just done reading this:

http://freenrg.info/Bedini/SSG_STARTERS_GUIDE-Two.pdf

It is interesting it mentioned that 12V 7Ah need to be charged at 280mA while nicad mentioned by Bedini at 300mAh. I guess same circuit do not need to be modified at all for charging both type of battery. And the charging rate should be counted from 1 cell from whatever number of cell or battery in series.

[sucahyo]

Thanks I will look into Visual Analyser.

[blackchisel97]

Visual Analyzer

Hi sucahyo.

Before I got my scope I was using Visual Analyzer software. My version is 10.0.5 and I was able to see something rather than guessing. Software has 2 channel scope, frequency meter and DMM, also signal function generator, which can be combined with car amplifier. Visual Analyser details I made simple probe with 10M resistor in series to protect my PC.


Vtech

[sucahyo]

I can hear them singing or chirping depending of frequency. I checked the wave over the cap. "Cleaner" sound means nicer wave and better charging.

Thanks for this. This confirm that transformer sound can be used to tune without the scope, very useful for me .

Hope you can help. Enybody know the switching speed, of the H11D4 ?
Is it as fast as the 555 timer ( 100ns ) ? Can it stand a frequency of say 68K hz ?

I got Fairchild spec that mention 5000 nano seconds. Since 68KHz need 14000 nano seconds. It work. But the signal is less sharp than 555. Different sharpness will have different result.

[blackchisel97]

Optocoupler speed

Hi Andrew,

I'm pretty sure H11 opto can handle such speed.


Vtech

H11d4

Hello !

Hope you can help. Enybody know the switching speed, of the H11D4 ?
Is it as fast as the 555 timer ( 100ns ) ? Can it stand a frequency of say 68K hz ?

Just wondering how far I can push this unit. And the Data sheets I've read do not seem to indicate eny switching speeds.

Thankyou
Andrew T
PATHS ~ Mind Energetics