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Overunity Machines Forum



Circuit setups for pulse motors

Started by Nastrand2000, September 16, 2007, 10:46:33 PM

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Nastrand2000

#65
September 23, 2007, 11:02:04 AM
Peter,
There has not been any discussion of bemf vs. flyback. Just to get it out there, BEMF happens while the driving coil is active. What I'm capturing happens after the coil fires, and then the field collapses. If I understand flyback voltage (which I don't), it is the same thing I'm capturing. Please correct me if I'm wrong, I'm always happy to learn. God knows I need alot of teaching.  ;D
Jason

tropes

#66
September 23, 2007, 11:14:43 AM
Quote from: Nastrand2000 on September 23, 2007, 11:02:04 AM
Peter,
There has not been any discussion of bemf vs. flyback. Just to get it out there, BEMF happens while the driving coil is active. What I'm capturing happens after the coil fires, and then the field collapses. If I understand flyback voltage (which I don't), it is the same thing I'm capturing. Please correct me if I'm wrong, I'm always happy to learn. God knows I need alot of teaching.  ;D
Jason
I think in this forum BEMF has come to mean any voltage captured after the coil has pulsed or voltage induced by a magnet passing a coil. However, I believe you are correct in that BEMF occurs as a result of Lenz's Law while the driving coil is active. The electromagnetic force that I would like to use is the voltage created when a magnet is attracted to the coil or pulled towards a coil.
Perhaps we are both full of shit and still don't have it right.
Tropes

Nastrand2000

#67
September 23, 2007, 11:31:10 AM
Peter,
You are correct (that we are full of shit  :P). But the voltage you are looking at is BEMF, lenz law. However if you try to remove this voltage there will be BEMF to that voltage and so on. The only way to get rid of it, is to get rid of resistance. So you would need a superconducting coil. I believe that you could capture the first pulse of BEMF and help your motor continue its direction but you have to consider the resonance effects within the coil itself. And resonance calculation is beyond me.
Jason

Nastrand2000

#68
September 23, 2007, 11:43:33 AM
Peter,
I also believe that the only way to capture this BEMF would be a bifilar wound coil with the capturing coil being much smaller in gauge. Say a 20 gauge wrapped with 28 or 30 gauge just to start the testing.
Jason

tropes

#69
September 23, 2007, 11:50:08 AM
Quote from: Nastrand2000 on September 23, 2007, 11:43:33 AM
Peter,
I also believe that the only way to capture this BEMF would be a bifilar wound coil with the capturing coil being much smaller in gauge. Say a 20 gauge wrapped with 28 or 30 gauge just to start the testing.
Jason
Okay, so would you wrap the two wires the same direction or would one be going the opposite way?
Peter
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