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

[k4zep]

Hi all,

For those that like to play with numbers the motor will charge up a 650 F  Cap. at the rate of .198 V/ hour.  How much electrical energy is it producing?   Have fun.

Respectfully,

Ben

[mondrasek]

K4,

Thanks again for your work.  (I'm guessing many more are reading than are posting.)

As for:  gab your head off!

1) I would humbly oblige to listen!

2) I'd buy the first round.  Or not if your prefer.

Gentlemen...

Gentlemen...

PS.  My baby is sleeping right now.  She was blown away by Xmas...

Merry, Merry..

Awh, hell....

Merry Christmas!

And Peace on Earth.

[hartiberlin]

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

Very nice Ben !
Well done ! Great BackEMF recycling circuit.

Did you just use a diode ?
What diode ?
Do you have a very fast diode ?
It will help.
Like MU5xxx types or so..

The energy comes from the stored magnetic field energy from the toroidal coil.
W= 0.5LI^2

Ben, as you switch on about 20 x tau
you need to go to higher supply voltages and
lower ontime intervals, so you will reduce the ontime
to less than tau=L/R.

This way you could scale the motor up
and could recycle almost all of your input energy back to the cap,
if you stay below about 1/5th of tau for the ontime.

With higher supply  voltage you will then already reach in a shorter
time interval the same input current level as you reach now
after longer time.

I studied this all long time ago already with the Newman coils,
so I know quite well what is going on there.


Many thanks again Ben, you are a real help here.

Very well done.
Regards, Stefan.

[futuristic]

Hi.

Cause I'm lazy I used online calc 
http://www4.slikomat.com/09/1226/iey-capaci.png
In one hour you got 13 J of energy. 13J=13Ws
P=13Ws/3600s=3.61mW
I hope It's right if not correct me.

[hartiberlin]

Hi all,

For those that like to play with numbers the motor will charge up a 650 F  Cap. at the rate of .198 V/ hour.  How much electrical energy is it producing?   Have fun.

Respectfully,

Ben

Hmm, seems to me that you are recovering 35 milliWatts while charging the cap.
At what voltage level did you measure this ?
As the cap charge ramp is only linear around 0 Volts and then goes into
a e-function it really depends on the voltage level the cap already has...

I will have another look at your last video and look into this to calculate
the recycled power level.