STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[hartiberlin]

High Stefan,

Can't do that as part of the bridge would short the coil in the wrong direction due to normal wiring but I can put a single 1/2 wave diode in there just to see what will happen.  Draw it out, will understand.  If had a separate winding like Bedini could do it but with the quadf coil, no inductance!!!!!!!!  a gotcha there.

Next post will show results.

Respectfully
Ben

You are right,
but you can start by letting the cap charge up to the power supply voltage via
the battery or power supply and then see from this point ,how much if will further charge
up over the power supply voltage.
The graetz bridge will only conduct, when the BackEMF voltage will
be higher than the cap voltage and as the cap voltage will be higher than
the supply voltage, the graetz bridge will only conduct during BackEMF spike voltage
and charge up the cap to the maximum spike voltage of the BackEMF.

Then you can calculate the difference energy the cap has got in a timeframe
by substrating the energy it had at the start with the supply voltage level.

This way also a graetz bridge will work for it, but you probably have to use
a cap that can stand around 100 Volts or more.

[lumen]

MileHigh,

So there is nothing free about this process if you want to recover the back EMF after the coil has done its job of saturating the ferrite core.  You have to put out a lot more energy to make the core "disappear" than you can get back in any back-EMF recovery circuit.  In a Joule Thief circuit, the charging current in the collector coil is automatically shut off once the coil is fully charged with current, it is a self-regulating process.  Therefore a Joule Thief would return a much higher proportion of the charging energy in its inductive kickback.

I agree, the pulse in the Steorn motor is maintained for a very long duration and will consume too much energy.
If they are able to make this operate and still recover enough energy from the generator section to cover it, then it sure seem like in a solid state device where the saturation time could be minimal, a large amount of power could be generated.

[k4zep]

You are right,
but you can start by letting the cap charge up to the power supply voltage via
the battery or power supply and then see from this point ,how much if will further charge
up over the power supply voltage.
The graetz bridge will only conduct, when the BackEMF voltage will
be higher than the cap voltage and as the cap voltage will be higher than
the supply voltage, the graetz bridge will only conduct during BackEMF spike voltage
and charge up the cap to the maximum spike voltage of the BackEMF.

Then you can calculate the difference energy the cap has got in a timeframe
by substrating the energy it had at the start with the supply voltage level.

This way also a graetz bridge will work for it, but you probably have to use
a cap that can stand around 100 Volts or more.

H Stefan,

This will surprise you!

Video http://www.youtube.com/watch?v=Y3_XPxbbOig

No need to say more except it will also charge a 650 F super cap at the rate of about 2 mv/Min......will get a much more accurate
rate later.

Respectfully,
Ben

[mondrasek]

I am enjoying every moment of this.  Thanks to all!

K4, listening to your voice on the video I'd say you are from the South East of the USA.  Tennessee to be exact.  Am I close?

PS.  To those who think I am the MIB for asking this question, I apologize.  I am not.  I just work with many good souls in TN who talk similarly to Ben, so I am curios. 

No ulterior motives.

M.

[k4zep]

I am enjoying every moment of this.  Thanks to all!

K4, listening to your voice on the video I'd say you are from the South East of the USA.  Tennessee to be exact.  Am I close?

PS.  To those who think I am the MIB for asking this question, I apologize.  I am not.  I just work with many good souls in TN who talk similarly to Ben, so I am curios. 

No ulterior motives.

M.

How about western North Carolina just over the Blue Ridge Mountains.  Now,  I'm retired to St. Petersburg, FL, an old fart that loves to play with out of the box stuff.  I now but still get that twange worse when I'm on "TV".  Heck of you were MIB, I'd invite you down for a cup of coffee and gab your head off!!!!  Life is good....