If you are like me and have a spare PC fan laying around
Then it is always a good idea to glue a neodymium
Magnet to each one of its blades and use a more powerful magnet to repel them
So that the fan spins forever and thus produces an unlimited amount of free energy
Sounds too good to be true, right?
Well in this video let's play around with this infamous magnet PC fan
and the so called Bedini motor to find out how much free energy we can actually produce
Let's get started
First off this set up for this magnet PC fan is fake
the light bulb is actually powered by one channel of my lab bench power supply
while the other channel provides a voltage of 2.7V for the fan
So that it can slowly spin without raising too much suspicion
Since it is impossible to accelerate the fan solely through the magnetic repulsion
because the magnetic attraction occurs a fraction of a second later and basically counteracts the rotation
But not only that if we solder a red LED to three different PC fans and Spin them
We can see that two LEDs stay completely dark and only one lights up decently here for a very short amount of time
The reason is the driver circuit of the fans which are all slightly different
But were all never intended to be used as a generator circuits
That is why the first fan basically outputs nothing the second one outputs 1/2
wave of a sine wave with a peak voltage of 1.5V
And the third One outputs two rectified halves of a sine wave with the peak voltage of 2V
And even if we use the fan with the highest output power the LEDs light intensity would only equal a power of around 0.01W
Definitely not enough to power a 21W light bulb. So all in all the magnet PC fan is bullshit
Next is the Bedini motor whose circuit schematic looks most of the time something like this
As a power source it usually features a 12V battery that through the magic of the circuit
adds free energy and thus either charges up a second battery or lights up neon bulbs
Now all of the mandatory component for it are pretty common, and thus not a problem together
Except the two coils which represent the motor stator section of the circuit
For that, I firstly had to remove the label of a PC fan in order to remove the circlip that holds the rotor in place
After removing it as well
I unsolder the four wires from the circuits and pulled off this stator with driver circuit out of the case
then I heated up the connector pins of the stator to remove the driver circuits
and continued by unsoldering the two coil wires from two connector pins
What we want in the end are the four wires sticking out from the stator to which we have to solder four extension wires
Which we can then secure in place with hot glue and then redirect out of the PC fan case
While the stator gets positioned in its old place
Now by measuring the resistance between the four wires we should get two pairs with the resistance of about 21O
Which represent the two coil pairs
After marking one of them it was time to create the circuits. Which due to its simplicity here only took around 5 minutes
As a power source I use my lab bench power supply
Set to 12V and as the to be charged as battery I used the super capacitor
only problem was that the circuit didn't want to start on its own
A small Spin for the pan was necessary to get it going and as you can see the capacitor did get charged up
While the circuits do around 2W on the input so to calculate the efficiency here
I stopped the circuit, discharged the capacitor installed it again while also starting a stopwatch
after around 8 minutes
the capacitor reached the voltage of 1V
With its capacity of 22F this equals an output energy of 11Ws
For the input energy here
We simply have to multiply the input power of around 2W with the time the charging required
which equals an enegy of 956Ws
so the circuit does feature a overall efficiency of 1.15%
keep in mind that when dealing with free energy here we strive for an efficiency of above 100%
and this is 1%
but for last test let's unsolder the capacitor and instead let's add a neon bulb to the output of the circuits
as you can see here the bulb lights up brighter on the outputs than it does on the input
Which means there has to be free energy involved is what people would argue now, but that is also bullshit
The reason for this can be found when we analyze the circuits
First off we spin the router so that a positive voltage is induced into the base side coil
Which then pushes current through the base of the transistor
This opens the collector middle path and thus current can flow through the other coil
Which therefore builds up of Magnetic fields and keeps moving the rotor
Due to this an negative voltage is induced into the other coil and thus a negative voltage is applied to the base
Which closes the Collector emitter path
Here it gets interesting. The stored energy of the coil in its magnetic fields gets pushed into the neon bulb
Which results in a small voltage spike, and thus a brief moment in which it lights up
Afterwards though the base side coil gets once again induced with a positive voltage and the cycle repeats all over again
So all in all this is simply a crude boost converter that definitely not uses such a thing as free Energy
I mean from a logical side of view you supply input power
have thousands of resistances voltage drops and power losses in your circuits and
still expect more power on the output then on the input
that makes no sense, but I will give the circuit this. It is a pretty decent fan driver
Anyway, I hope you enjoyed watching this video. If so don't forget to like share and subscribe
Stay creative and I will see you next time