Back-EMF Manifesto - A Key, hidden in plain Sight.

[tinman]

That link doesnt work for me. Id like to see what they had to say or show but it doesnt apear to work.

Mags

Mmm,try this one

https://ipfs.io/ipfs/QmXoypizjW3WknFiJnKLwHCnL72vedxjQkDDP1mXWo6uco/wiki/Counter-electromotive_force.html

[sm0ky2]

All 3 forces are beyond current human understanding.
There is no "definition"
All we can do is describe the little we think we know about them.


One does not exist without the other 2
As they are all part of the same thing.


What is "field"?


Intangible, unseen
All we can do is speculate, experiment, and describe our experiences
The "what is" lies beyond our reach

[dieter]

Glad to see you guys are discussing something here. Unfortunately not the actual core feature of the thing I was talking about.


Which is very simple, not much speculation of the philosophy and true nature of time space within the field of electrics.


Simple things like what that profesdor told me: current will always flow from a high potential to a low potential.


I considerbit a waste of livetime to question this. So, with a scopeshot of an inductive Kickback (as you prefer) in front of you, a clearly visible negative Spike, how can you even have such a discussion.


I said that already, you may have ignored or lalalalala-ed it, but here again:


During the forward pulse the coil's polarity is in series with the supply. The inductive kickback reverses polarity. Now it depends on the Voltage of the inductive kickback that finally decides whether the current will flow back to the supply. It can only flow back if the voltage is higher than the supply.


Because current flows from a hi to a lo potential /voltage.


This is for people who are really interested in the subject matter. Just ignore the offtopic flood.


Yeah, so how about them loads in the back path? The lower their resistance, the more efficient the recovery of the pulse?


We probably just opened a whole new pandora box thing here, from a oil-slaves point of view: What if we just charge one Battery with an other battery. Of course, one must have a higher voltage for that. Bit hey... if we put a load between them - wouldn't it again hold true: the lower the resistance of the load, the more unaffected the battery charging. Or do you think the electrons will jump off the wire somehow? If they would, the battery couldn't be uncharged, because what goes out at one pole must come in at the other pole.


So how do you like them apples.


So how about that.

[Magluvin]

Glad to see you guys are discussing something here. Unfortunately not the actual core feature of the thing I was talking about.


Which is very simple, not much speculation of the philosophy and true nature of time space within the field of electrics.


Simple things like what that profesdor told me: current will always flow from a high potential to a low potential.


I considerbit a waste of livetime to question this. So, with a scopeshot of an inductive Kickback (as you prefer) in front of you, a clearly visible negative Spike, how can you even have such a discussion.


I said that already, you may have ignored or lalalalala-ed it, but here again:


During the forward pulse the coil's polarity is in series with the supply. The inductive kickback reverses polarity. Now it depends on the Voltage of the inductive kickback that finally decides whether the current will flow back to the supply. It can only flow back if the voltage is higher than the supply.


Because current flows from a hi to a lo potential /voltage.


This is for people who are really interested in the subject matter. Just ignore the offtopic flood.


Yeah, so how about them loads in the back path? The lower their resistance, the more efficient the recovery of the pulse?


We probably just opened a whole new pandora box thing here, from a oil-slaves point of view: What if we just charge one Battery with an other battery. Of course, one must have a higher voltage for that. Bit hey... if we put a load between them - wouldn't it again hold true: the lower the resistance of the load, the more unaffected the battery charging. Or do you think the electrons will jump off the wire somehow? If they would, the battery couldn't be uncharged, because what goes out at one pole must come in at the other pole.


So how do you like them apples.


So how about that.

You are only looking at the apples from the outside. Your apples not good once you look inside.

"During the forward pulse the coil's polarity is in series with the supply. The inductive kickback reverses polarity. Now it depends on the Voltage of the inductive kickback that finally decides whether the current will flow back to the supply. It can only flow back if the voltage is higher than the supply.

Because current flows from a hi to a lo potential /voltage."


Of course the polarity changes across the coil when the input is taken away.  Because the coil is now the source! 

When the + of the input is connected to (A) side of the coil and the - to the (B) side of the coil, a scope will show (A) as being + and (B) as being - !!!!!  Now look at the loop of the batt and coil.  When the input is disconnected and the coil polarity shows on the scope to reverse, which way would current flow if the initial input connections became a load for the coils output when the input is disconnected??    Like a snubber diode, of which Circuit Sim will show you the way. Simple simple simple.

You need to dig deeper into understanding this stuff.  I highly recommend you download Falstads Circuit Sim applet.  It is correct just like all other sims when it comes to this stuff. You can use the sims scope to see the polarities and the sim shows currents flowing through the wires and components.  And you can take all that and do the same on the bench using a scope to monitor the polarities and have resistors to monitor current directions. 

I was in the same shoes you are wearing right now about 10 yrs ago.  Even what Im showing you here now, you still may not get it for some time, as the same for me. But keep at it. You will get it.

If you dont want to try Circuit Sim then maybe I can do a vid of what Im saying.  Have to see if the camera will show the monitor clearly.

Mags

[sm0ky2]

@erfinder


Let me know when you get published
So I can nominate you for the Nobel Prize