Mostly Permanent Magnet Motor with minimal Input Power

[Jimboot]

Ok my coil weighs 74 grams which is the one I can lift to 225mm.
With weights added I can get it to 112mm total weight including coil of 175grams. @Stefan what cap rating do you want me to use to measure power?
Thanks

[Kator01]

Jimboot,

potential energy of your mass : E = m x g x h = 0.175 kg x 9.81 m/sec exp2 x 0.112 m = 0.1923 Joule ( Watt second ). What was your electrical power-input ?

Regards

Kator01

[Khwartz]

Luc asked me to update the spreadsheets to use grammes instead of kg, millimetres instead of metres etc.

New versions are same names so same download links used.

Here is the Microsoft Excel version :

http://internut.webspace.virginmedia.com/Lucmotor%20Efficiency%20Test%20-%20Capacitor%20Version.xls

Here is the Open Office version :

http://internut.webspace.virginmedia.com/Lucmotor%20Efficiency%20Test%20-%20Capacitor%20Version.ods


*** edit add ***

I think they may have downloaded as read-only before but this should be fixed now.

Stupid UNIX file permissions ;+}

*************



All the best,

DC.

Excuse me but looks to me that to know the energy consumed need to have 2 voltage while a capacitor: the one before the test and the one after; am I right?

[gotoluc]

Excuse me but looks to me that to know the energy consumed need to have 2 voltage while a capacitor: the one before the test and the one after; am I right?

Yes, you are correct!  but in this test the capacitor was connected long enough to discharge completely.

Thanks for your interest

Luc

[Neo-X]

Hi guys.. I have another idea based on tito's ping pong circuit... My idea is to confirm what Richard Willis said that a coil in a ferrite core with magnet in both side when supplied with a pulse of voltage, its collapsing magnetic field produces more power than in. If it was true, the current will never degrade and instead it will goes bigger. In figure A, the capacitor was pre-charged by a battery.