Skycollection's "Pentafilar Pancake" inductively coupled "Overunity Potential".

[deslomeslager]

Ok, i will try to use the BEMF and connect the supercaps...!

Please do not feed BEMF in supercaps.
It will create very tiny holes in the inner structure, making them leak energy. A supercapacitor is NOT able to withstand a higher voltage than rated, even 3 Volts in stead of 2.75 is already shortening the life considerably. A better way to do this is by putting another capacitor which itself is connected with a diode to the supercap (plus to plus with a diode in between from cap to supercap).

A better way to is to transform the BEMF down first, that way you loose less of the possible charge.

Happy experimenting!

[skycollection]

Ok, thanks i did the experiment last night but with one of the pancake coils, not with the BEMF, with a rectifier, and i sow that the voltage produced was 6 volts (and with a capacitor 14 volts) and desisted continue the experiment, because i know that i can damage the supercaps...!

[MileHigh]

Please do not feed BEMF in supercaps.
It will create very tiny holes in the inner structure, making them leak energy. A supercapacitor is NOT able to withstand a higher voltage than rated, even 3 Volts in stead of 2.75 is already shortening the life considerably. A better way to do this is by putting another capacitor which itself is connected with a diode to the supercap (plus to plus with a diode in between from cap to supercap).

A better way to is to transform the BEMF down first, that way you loose less of the possible charge.

Happy experimenting!

I view the problem that you are suggesting as being highly unlikely.  When the BEMF goes into the supercapacitor, the voltage will be very low.  If you start off with the supercapacitor discharged, then the voltage starts at (very close to) zero volts and then slowly climbs as the supercapacitor charges.  If you are careful and monitor the supercapacitor voltage with a mulimeter as you charge it, then you can stop the BEMF charging before the voltage gets too high.

If you are thinking that the BEMF outputs high voltage when it discharges into a discharged capacitor then that is not the case.  The voltage is determined by the slowly increasing capacitor voltage.

The one possible issue is related to how much charging current in amps that the supercapacitor can sustain without damage.  This might be in the datasheet.  My gut feel is telling me that the initial charging current from the BEMF in Skycollecion's setup will not be so high that you have to worry about that.

MileHigh

[MarkE]

I view the problem that you are suggesting as being highly unlikely.  When the BEMF goes into the supercapacitor, the voltage will be very low.  If you start off with the supercapacitor discharged, then the voltage starts at (very close to) zero volts and then slowly climbs as the supercapacitor charges.  If you are careful and monitor the supercapacitor voltage with a mulimeter as you charge it, then you can stop the BEMF charging before the voltage gets too high.

If you are thinking that the BEMF outputs high v9ltage when it discharges into a discharged capacitor then that is not the case.  The voltage is determined by the slowly inchreasing capacitor voltage.

The one possible issue is related to how much charging current in amps that the supercapacitor can sustain without damage.  This might be in the datasheet.  My gut feel is telling me that the initial charging current from the BEMF in Skycollecion's setup will not be so high that you have to worry about that.

MileHigh

Yes and no.  How fast the external circuit switches current into the supercapacitor and the inductance of the supercapacitor will determine the peak voltage across it as a result of a switched current such as BEMF.  A little filter placed in front of the supercapacitor will protect it.

[MileHigh]

Thanks and I stand corrected.  You learn something new every day.