Thread: Bedini SG
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Old 02-21-2008, 01:52 PM
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Sephiroth Sephiroth is online now
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I've had a look at the wfc circuit and the arrangement of the choke is very interesting...

chokes are still new to me but lets see if I have got this right...

if a current is pulsed into a choke the current is blocked by the choke by converting it into a magnetic field. The voltage is still free to pass through.

after a short time, and if the current supply remains constant, current will then pass through the choke only impeded by the resistance of the wire.

then when the current is cut off from the choke. The magnetic field degrades forming a current in the circuit (in the same direction as the original current flow?). Very similar to what happens in the SSG's coils... which is interesting...

however, if the choke is continuously pulsed something else occurs....

once the pulse hits the choke the current is cut off but voltage passes through just as before. But then when the pulse stops voltage is still coming from the choke as it's field degrades. Then the next pulse comes in (before the chokes field has fully degraded) and re-establishes the field and the process starts all over again...

so if you supply pulse DC through an appropriate choke you will end up with steady DC?

Now if we look at the SSG, a funny thing happens with the trigger. IF it is only the voltage generated by the magnet that triggers the transistor, then we should only see ONE pulse per magnet... multiple pulses should not occur. I think we get multiple pulses only if the trigger is part of an N-Filar coil. When the power coil turns on, its magnetic field generates a current in the opposite direction to the current flowing in the trigger coil. This turns off the transistor, and thus turns off the magnetic field from the power coil and current induced by the rotor magnet is free to flow again, and so the transistor turns on again etc etc etc etc......

That is what I believe causes resonance.

So the trigger signal isn't steady DC... it is pulse DC (actually most the time it is AC but the trigger signal is pulse DC)

But with the choke in the circuit, it is no longer pulse dc and is now steady DC. So what now happens is that when I adjust the pot, it adjusts the length of a SINGLE pulse, instead of the length of the "pulse train" as it would normally.

So the reason why i think I have achieved lower amp draw is becuase originally my coils were firing multiple times on some magnets on the rotor, but only once on other magnets due to minor misalignments.

The choke has made it so that it can only ever pulse once per magnet so every pulse is fairly equal. So I think it's main benifit has been in tuning the circuit...

but chokes have suddenly become really interesting! I think I'm beginning to understand this circuit.... I suspect that chokes/coils pulsed with DC are radiant converters. Hot goes in, Cold comes out... if done with the right timing... and now that I understand how coils can behave like capacitors I see that Bedini's Radiant Charger (where two 12volt caps are charged off a single battery and then the 24v charge is pulsed back into the battery) is almost EXACTLY the same thing as what happens in the SSG.... exept it is using coils instead of capacitors and it is self timed....

This has opened up a whole new area for me!

I'd like to hear your thoughts on this...

Last edited by Sephiroth : 02-21-2008 at 02:24 PM.
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