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The SG Radiant Oscillator

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  • Virejas
    replied
    Hello, Everyone,

    Greetings from Lithuania. I need advice of my system.

    The coil I've wounded in picture Click image for larger version

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    I use npn 2n3055 transistor, 3A diode on output, base-emiter 1A diode, ~5k variable resistor. All oscilosolographs measurements on emiter-collector. Im charging 7Ah batteries from 7Ah primary battery too. Coil parameters is 34m of three wires. Two (both) on power wires and third on base. Base wire ~18 omhs, powerwires ~9 omhs.

    This is the first point of my charge primary current: Click image for larger version

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    Current is 0,22A ant oscilograms are straight square.

    This is the second point of my charge current: Click image for larger version

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    Current is 0,42A and there some soft shape of straight square.

    This is the third point of my charge current: Click image for larger version

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    Current is 0,44A and there line down.

    Coud You help me understand what I see on oscilograms? Whitch one of charging points are better?

    Robertas

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  • Nofear
    replied
    Hi Tom, Mike.
    Try it in gen mode??.....as opposed to what?
    I must have skipped that class because I always taught that SS SG circuit charges batteries with the added dissulfation bonus. And the two are pretty much inseparable.
    But now I am hearing you Mike talking about running your circuit as a dissulfator!? I spent my last evening reading past posts trying to find references to that. In vein I am afraid.

    So I guess that begs the question how can a SS Osci circuit be run as a dissulfator "OR" a charger/gen mod?

    I would like to find out for myself and would gladly do the necessary tests but I don't even understand what you guys are talking about. Can someone please get me out of this fog I am in.
    Thank you
    NoFear

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  • Tom C
    replied
    now try it in gen mode mike...

    Tom C

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  • kapierenundkopieren
    replied
    OK guys, I will continue experimenting on tuesday or wednesday, have to buy some components. Then will try to figure out how to make the CPD mod correctly.

    Leave a comment:


  • Brodie Gwilliam
    replied
    mike you made sure to change the base resistance once you removed the cap to equal the amp draw the circuit had with the cap and it still charged faster?

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  • min2oly
    replied
    Originally posted by kapierenundkopieren View Post

    Patrick (min2oly), if you are reading this could you please share your thoughts on this?

    THX in advance!
    Hi kapieren und kopieren (?) did I separate it right? SAVVY & COPY
    check your PM :-)

    Leave a comment:


  • kapierenundkopieren
    replied
    HI! I don't think that in my case a megaohm pot would make the popping sound, because the frequency of pulses still increases with resistance, and the collector emitter waveform looks the same as before, like the 18k and 10k resistors were still in place, but they are not. So now i'm a bit lost, maybe it is self oscillating or something.
    So the question is: would lower base resistors make the thing work properly or not?
    Any help is wellcome!

    Patrick (min2oly), if you are reading this could you please share your thoughts on this?

    THX in advance!

    Leave a comment:


  • Brodie Gwilliam
    replied
    I think you need to get a megaohm pot if you want really slow popping, mine whines in the 5k pot range like a normal ss ssg , check charging differences and scope shots and let us know what you see

    Leave a comment:


  • kapierenundkopieren
    replied
    OK, I did a little research and if I'm not mistaken, "Min2oly" (Patrick) Is the inventor of the CPD mod (capacitor diode modification) and this is his schematic:



    ...so he does it a little different than you (BroMikey), he puts the diode before final base resistors...

    Today I tried this mod, but for some reason the frequency stays the same as before, even if I cut the 18K ohm and 10K ohm resistors loose and it doesn't do the pop...pop...pop sound like in this patrick's video:
    Bedini SS SSG with CPD MOD - YouTube

    So I guess my base resistors (200 ohm) are too high, will try to change them.

    @BroMikey
    Do your base resistors (47 ohm) get hot while charging?
    What kind of sound does your charger make (the pop...pop...pop, or something else) ?

    THX in advance for your help and answers!

    Leave a comment:


  • kapierenundkopieren
    replied
    Hi Guys! Here are the pictures of my SS SSG. It's a 6 transistors build and charges a 12V 70Ah starter battery in about 24 hours at 3.5A input current. If needed the battery can be pushed to 16V in about 30 hours. I guess the charging efficiency is between 80% and 100%, but I run my circuit from a 220V/12V transformer and bridge rectifier so that efficiency would be with the transformer and bridge excluded.

    My specs:

    -6 x MJL21194G
    -coil 7 x 18 AWG 100 feet
    -6 x base resistor 220 ohm 5% 3W
    -output diodes 6 x P1000M (10A 1000V)
    -6 x transient voltage suppressor diode 1V5KE130CA (instead of neons)
    -5 x emitter - base diodes (this data was corrected because I forgot the diodes were in the circuit and did not see them)
    -resistors 18k and 10k
    -RX - rheostat 25W 500 ohm

    @BroMikey
    Could you please post how long it takes to charge your battery to 14.5V and what type of battery and Ah rating is it?
    THX in advance!

    Comments and advices on how to improve my setup are very wellcome!

    Here are the pictures and scope shots as promised!


    Schematic from "Blackchisel97" - THX a lot!


    My SS SSG "Blackchisel97" Style


    My SS SSG "Blackchisel97" Style 2


    Charge battery: 70Ah 12V starter battery


    Scope shot from base - emitter


    Scope shot from collector - emitter (90.4V spike while charging 70AH 12V battery)


    Scope shot from battery terminals (61.5V spike)


    Almost forgot -found this charging chart I did then
    Last edited by kapierenundkopieren; 10-01-2013, 03:24 PM. Reason: data corrected

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  • Tom C
    replied
    Mike,

    1 in 1 out is excellent. even the most efficient comercial chargers can not get 1 to 1. heat loss alone prevents this..... my latest set up is a complete bike wheel kit. trying to get cost down so having to finagle some things and trying to make it work in such a way that all the mods can be done, and mechanical energy can be harvested blah blah blah. you know just trying to get something out there people can use.

    Tom C

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  • Tom C
    replied
    Mike,

    what is the efficiency of the charger? are you seeing more out than in in terms of charging capability?

    Tom C

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  • kapierenundkopieren
    replied
    Hi BroMikey! Do you have any scope shots to show? On the collector emitter, on the battery terminals and maybe also the base emitter connections?
    I have a "Blackchisel97" type beast with 6 transistors, just not with the CPD mod yet. Will show pictures and scope shots soon.
    Keep up the good work!

    Originally posted by BroMikey
    Okay someone has asked about my updated schematic for the above solid state Bedini style oscillator. I am using the resistors in the base this way to turn down the charging power.

    The spike is out of this world off the charts. It charges batteries great all sizes asap.

    IF YOU GUYS WANT TO SPIN A MECHANICAL WHEEL FOR A TRIGGER BE MY GUESS.


    Both solid state and mechanical wheel triggered SG oscillators do the very same thing.

    One in and one out. It is great battery tech.

    What I was hoping was that I could apply these circuits to run an oscillator for years on the same battery like everyone else.

    Obviously we are missing something.

    No matter here is the progress
    [ATTACH=CONFIG]2611[/ATTACH]

    Leave a comment:


  • Brodie Gwilliam
    replied
    thanks a lot mikey can we discuss base resistance a bit..... where do you find the sweet spots are on the 5k pot , ive noticed anythin less than around 500 ohms it starts too add a lot more amps with little charging difference, whats up with the 20k pot and how does that help you tune.... ive heard people talk about 470 -680 ohm base resistors on regular bedini ss ssg's , have you tried anything like that or do you feel lower base resistance for cpd mod is better ... I have a bigger 18 awg coil that I havent put together yet currently with 470 ohm base resiators and im wondering if I should be thinking about lowering them.... thanks again

    Leave a comment:


  • RS_
    replied
    any time you put 2 or more diodes in parallel, they should be matched very close, or the weak one is the only one working... same with the other transistors diodes in a muilty strand unit......

    Leave a comment:

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