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Overunity Machines Forum



STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

Started by PaulLowrance, December 04, 2009, 09:13:07 AM

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gyulasun

Quote from: haithar on February 14, 2010, 04:48:39 PM
I wrote an E-Mail to Naudin and kind as he is i got an answer. He was recommending the rpi-441c1 from Rohm semiconductor, but since i cannot get this part from a shop here i chose the CNY70 along with a Schmitt-Trigger IC for perfectly sharp triggering.

Thanks for the info.  I do not think any special feature is needed to expect from such interrupter, maybe the only caution is to prevent stray light (that do not come from its LED transmitter) entering from any direction  into the opto receptor side of the interrupter.

gravityblock

Quote from: PaulLowrance on February 14, 2010, 03:36:09 PM
Real quick for legit researchers: When the magnet is at TDC, the circuit first stage pulses coil with *high* voltage for ~ 25us to get the current to its peak. During this pulse the circuit is nearly 100% inductive. Second circuit 2nd stage pulses coil with *low* voltage for the remainder of the pulse width, which I've varied anywhere from 10 to 21 degrees. Second stage the circuit is resistive, and is part of the electrical wires losses, which can be decreases relative to the output by various methods.  Resistive losses remains the same regardless of rpm. Inductive losses increases with rpm. As stated, most of the inductive energy can be captured back-- e.g., my 95% example.

The field always collapses much quicker than the time it takes to build the field.  This is probably the reason for the remenance or magnetization left over due to the coercivity and the less time it takes for the field to collapse.  Higher coercivity and a faster collapse time probably means more remenance left over.

If the field collapses twice as fast than the time it takes to build the field, then you can only recover 95% of half of the total energy it took to build the field, Which is a 55% total loss.  In order for you to re-capture 95% of the total energy from the pulse, the core material would need to have a low remenance, low coercivity, and nearly the same collapse time it took to build the field.  In addition to this, the pulse is on longer than the time required to build the field, which means more losses.

GB
Insanity is doing the same thing over and over again, and expecting a different result.

God will confuse the wise with the simplest things of this world.  He will catch the wise in their own craftiness.

PaulLowrance

Quote from: gravityblock on February 14, 2010, 05:35:19 PM
The field always collapses much quicker than the time it takes to build the field.

Incorrect. To be blunt, that once again shows you don't know what you're talking about. The field collapse rate depends on the load. For example the field will collapse at ~ twice the rate for a 20 volt zener load than a 10 volt zener load.

The rest of your post is meaningless.

gravityblock

Quote from: PaulLowrance on February 14, 2010, 06:07:45 PM
Incorrect. To be blunt, that once again shows you don't know what you're talking about. The field collapse rate depends on the load. For example the field will collapse at ~ twice the rate for a 20 volt zener load than a 10 volt zener load.

The rest of your post is meaningless.

If the domains in the core material are very hard to turn (coercivity), then it's equivalent to a load.  The harder the domains are to turn, the more work needs to be done which is the same as a load.  This is just common sense. The field collapse is always faster than the time it takes to build the field.

GB
Insanity is doing the same thing over and over again, and expecting a different result.

God will confuse the wise with the simplest things of this world.  He will catch the wise in their own craftiness.

PaulLowrance