Shorting coil gives back more power

[romerouk]

Hi Romero,

Would you mind using a current meter at the input so that any effect of the load (LED, bulb etc) could be seen on it, how much the input current changes?  I understand and can hear from the sound of the RPM in your video that the load quasi does not affect the RPM but still it would be nice to see it too.  You could use a 1 or 10 Ohm series resistor and indicate the voltage drop across it with even a digital DC meter, the tendency of change could be seen, no need for true RMS value measurements now.

Thanks and keep up your excellent ideas.

Gyula

I will do another video with measurements.

[woopy]

Hi Romero and all

Thanks very mich for your input and circuit

i just made a confirmation of your test

seems to be very promising

go on the good work

and good luck at all

laurent

http://www.youtube.com/watch?v=wB9wxySoBQE

[conradelektro]

Hello Laurent,

the experiment in your video http://www.youtube.com/watch?v=wB9wxySoBQE is just amazing (lightning the white 3 Volt LED with such low speed). I would like to replicate it (because I have a rotor with four magnets sitting in my work shop). But I do not understand your circuit. The most simple circuits are hardest to understand without a diagram (at least I am such a dummy). Specially I do not get what you mean by "shortening the coil"? Do you permanently connect a wire somewhere in the circuit?

I would like to ask you to make a very crude hand drawing of your circuit (used in the video) and to post it here (a photo or as a video). Your experiment is very important for understanding what is going on, because it looks so simple and easy to replicate. You seem to have come up with the most simple demonstration of this incredible effect.

I wounder what happens when you use an air coil? Because the rotor should loose much less speed (less cogging) than with the coil (having a core) you are showing in the video. But may be the induction is then too little?

Greetings, Conrad

[forest]

when exactly reed switch is closed and when opened ?

[e2matrix]

I a not using the HDD motor to power the system, it is there just to have the disks with the magnets on it. I am powering the system with the small air core, hall sensor and a transistor.
I will post a diagram later.
Stefan suggested to use a 5w/240volts bulb but I don't have one yet.
The smallest bulb I have is a 15w/240volts and it does lit up but somwhere close to half brightness.

Yep I knew that from your previous mention of it.  What I was suggesting was with that much apparent output from your second coil (used for the LED's) that it might be possible to feed that back rectified and at a lower voltage to the battery which might turn it into a self runner that would not lose voltage at the battery.  I'm guessing you may have already considered this.  What do you think?