Rotating Magnetic Field's and Inductors.

[poynt99]

LOL,

It is ironic actually; I am often criticized for offering my simulations as a means to analyze a circuit and for rarely building anything, but here we have the exact opposite! Brad wants me to complete my simulation before he will accept a challenge where I would be building an actual device.

Too damn funny. 

[MileHigh]

I'm just baffled that anybody can believe that a pulsing coil and a few magnets spinning on a rotor can be doing something special.  However, we have been there dozens of times in the past.

It's fun to try to figure out exactly what is going on as an interesting challenge.  I think it was on the other thread that I took some measurements that Woopy made on one of his builds and I crunched the hell out of his measurements and extracted lots of information and pretty much reverse-engineered the energy dynamics of his entire setup.  All that I got was stony silence.

I notice that Brad takes exception if somebody that is a so-called "big gun" changes their analysis or adapts their analysis over time because of something that they did not think of before or because some new information becomes available.  Horror of horrors, that's just not permitted!

In the spirit of the "understanding" challenge I will post some sample timing diagrams on another thread.  I don't expect that Brad will ever do a timing diagram, but perhaps seeing some examples will inspire somebody else to make one for their next pulse motor build.  In fact, if there is ever another pulse motor build off, supplying a timing diagram for your motor should be a requirement for entry into the competition.

http://overunity.com/16317/the-beauty-of-timing-diagrams/msg470448/#msg470448

[verpies]

Here's what the induced voltage looks like when a rotor magnet passes a coil.

As the pole of the magnet approaches the coil, it induces a voltage whose polarity depends on the polarity of the magnet facing the coil. As the magnet gets closer and closer the flux changes faster and faster so the amplitude of the voltage increases. As the magnet passes "TDC" or closest approach, the polarity flips (because now the flux is decreasing instead of increasing) and the amplitude starts high (fast change in flux) and decreases as the magnet moves further away. 
If the rotor magnet is flipped so that the other pole is facing the coil, the induced voltage pattern is flipped: first positive, then negative.

That is all true an useful when the coil is open, but when the coil is shorted by a load or a constant voltage source, then another form of analysis becomes more useful, namely the conservation of flux penetrating the coil as shown here.

[verpies]

Now all you have to do is get the entire wave form above the zero volt line without the use of rectifiers

Why and what will that do for me?

According to Faraday's Law of Induction, if you get a waveform like that all above zero with an open coil that is not powered externally, then it means that the magnetic flux penetrating this coil is always increasing up and up and up....

[gotoluc]

Why and what will that do for me?

According to Faraday's Law of Induction, if you get a waveform like that all above zero with an open coil that is not powered externally, then it means that the magnetic flux penetrating this coil is always increasing up and up and up....

Thanks verpies for explaining why it would be interesting to pursue this.
Now, when I achieve this (all above the zero line) and change the core to a Finemet core to boost the Inductance every time the special magnet arrangement goes by the coil, will there be any additional benefit?

Thanks for sharing

Luc