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Overunity Machines Forum



FREE ENERGY USING MAGNETS

Started by nightlife, May 13, 2008, 11:27:44 AM

Previous topic - Next topic

0 Members and 4 Guests are viewing this topic.

gyulasun

Quote from: petersone on May 30, 2008, 06:59:33 AM
Hi Gyula
could you sugest a value of cap.C1,I'm building the the trigger you kindly suggested.Thank again.
happy hunting
peter

Hi Peter,

Yes, the value for C1 can be any value from 4.7 or 10uF and higher up to even ten times as many.  Think of it as a normal puffer capacitor in a power supply, it all depends on how heavy load you connect across it. The heavier the load, the higher value capacitor would be needed, up to the recharging capabilities of the flyback pulse as the source of energy. 
However the voltage rating of the capacitor is important: heavily depends on the how heavy the load is. Say you connect a 10uF cap for C1 without any load across it, then you need at least a 350V working voltage rated capacitor!  And when you connect a 1000uF cap for C1, at least a 160-200V working voltage is needed, when this cap is unloaded.
In case you connect a 12V battery for charging it from the flyback pulse, C1 is not needed at all.

Notice:  Try to avoid operation without a load because in an unloaded case the flyback pulse can easily exceed the breakdown voltage of  your switching MOSFET and it may fry.  The expected amplitude of the pulse depends linearly on your coils inductance and on the amount of the current-change and inversely on the switching speed, the known formula is L*(di/dt). And when you wish to disconnect the load (be it a charged battery or a lamp etc) it is a good habit to switch off your circuit first.  Unless you are using a switching MOSFET with 600-800V drain source voltage ratings...   I recommended at least a 200V MOSFET in my earlier post, a good compromise between low switch-on drain source resistance (0.082 Ohm) and price. A 600V device with under a half Ohm ON resistance costs 3-4 times as much at least...

rgds, Gyula

petersone

Hi Gyula
            Thank you very much for your VERY comprehensive reply,I ordered a few fets today,I hope I get it going before I blow up the last one,I'm trying to understand the point of all these pulse motors,it seems just to harvest as much flyback as possible,would it not be just as easy to pulse a coil,and not have all these bit of iron flying round!! there not a lot a toque it seems,I must be missing something.
Thanks again.
happy hunting
peter

gyulasun

Quote from: petersone on May 30, 2008, 02:51:41 PM
Hi Gyula
            Thank you very much for your VERY comprehensive reply,I ordered a few fets today,I hope I get it going before I blow up the last one,I'm trying to understand the point of all these pulse motors,it seems just to harvest as much flyback as possible,would it not be just as easy to pulse a coil,and not have all these bit of iron flying round!! there not a lot a toque it seems,I must be missing something.
Thanks again.
happy hunting
peter


Hi Peter,

My understanding on such pulse motors is that torque fully depends on the strength of the electromagnets (and if a design has it then on that of the permanent magnets).  And do not forget that the facing surface areas on the rotor and stator are also important, it matters how much surface areas are involved during attraction or repulsion.
Have a look at Lindemann attraction motor description here http://www.free-energy.ws/electric-motor-secrets/attraction-motor.html  and see his text: The stator pole faces describe 30 degrees of arc. Each rotor cross bar face also describes 30 degrees of arc.   (His example rotor consists of two cast iron cross bars.)
And the rotor - stator air gap involved is also important, he recommends less than 0.1mm gap for possible overunity...

So you see, capturing the flyback pulse is only one aspect of the game...

rgds,  Gyula

petersone

Hi Gyula
I take your point,I think I'm trying to avoid having to machine to the accuracy of a Nat's kneecap!!
happy hunting.
peter

powercat

Something of interest from Montana state uny

   http://www.youtube.com/watch?v=KVOdX8ZzYuU&feature=related

Cart on an air track using just magnets and a MATLAB program

pc
When logic and proportion Have fallen
Go ask Alice When she's ten feet tall