Sorry CP I forgot to address your point about the pulse motor in my last reply.

You are correct, for any pulse motor there will be an optimum pulse duration for the most efficient running of that motor. And I agree many motors nowadays are not optimised in this sense, in fact many times in electromechanical design efficiency takes second place to manufacturing costs after all it's the consumer who pays to run the device wheras the manufacturer only has to think about manufacturing costs so they can retail for a lower cost and thus be competitive. Capitalism does NOT breed optimal solutions, of that we can agree.

But you have to agree that if the pulse length is long enough in your motor then the rotor mag will see a braking force during the latter part of the pulse due to repulsion from the approaching coil. You could negate that by having only one coil and one rotor mag but then you would still have a non linear measure of power used by the coil because as the rotor mag departs from the coil the force exerted upon it diminishes over distance.

If you can't afford an oscope and you're serious about seeing the real readings then you could make a chart recorder like device using a lightly sprung arm that gets deflected by an electromag, you could gut a hard drive to get all you need. Then have that sprung arm carry an inked firm fibre over a steadily rotating drum (can use use technical lego to make geared steadily rotating drum) . I did a similar thing when investigating mechanical movements of thin nitinol wire (muscle wire) when electricaly heated.

Yucca.

Captainpecan:

Well, your work has inspired me to finally make a joule thief. (Thanks Innovation Station for posting that video link, most simple plans I have seen thus far)  I am going to play with the thief and a few super caps and see what happens.  That is how I learn.  I am already getting free energy out of my earth batteries in which I use a super cap in my circuit and I think the joule thief will help there also.

As a reader of this topic, I enjoy reading and learning from those respectful enough to present their arguments in a decent way, backed up with real world examples.  You would not believe how many folks we have had on our earth battery topics that say it can't work, does not work, and will never work.  Some still said this after I posted several videos to youtube showing them working and lighting LEDs for free.  With a little luck, and some money, I hope to run my outside Christmas lights (LEDs) using nothing but the earth batteries.

Anyway, I think this is what this site is all about.  To me, the folks out there actually doing experiments will always mean more to me than the others who sit back and just criticize.  I have learned much here so far.  Thanks.

Bill

@Captainpecan,

I'm going to test your theories. I have built the attached circuit (well, almost, still have to make some coil etc.).
I will use my controller switch and pulse charge several capacitors through coils. The back emf voltage from
each coil (at each pulse, when step charging) will go back to the negative terminal by the use of a diode.
If there is any gain in the circuit then the connected rechargeable battery will charge up. Easy to test....

(The file name is a joke! :-)

Groundloop.

Aren't the diodes placed in the wrong place? And I assume L are coils?

Edit: Attached image. I might be misunderstand it though.

@broli,

Yes "L" are coils. No, I do not think so. When the switch open then the coil (at the left side) will be open and the
coil will go high Q and reverse polarity. The right side of the coil is already connected through a low "resistance"
capacitor to minus. So when the minus goes more negative then the plus will go more positive. The circuit
is "floating" because of the optocoupled switch.

I think this is right?

(EDIT) In your version there is no path for the back emf voltage when the switch is open.

Groundloop.