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Thread: R-Charge Window Motor

  1. #21
    JohnHav,
    Is that not another Carl Hurst motor?

    Quote Originally Posted by DadHav View Post
    I see John, So the elimination of the 220 ohm resistor isn't necessarily a bad thing if you have the voltage adjustments down low enough to not overdrive the power transistors? Well I guess that means when I'm going up in voltage on the little circuits and starting to draw too much current it could be that I need that resistor. Thanks now that make sense. Should have been able to figure that out myself. I never was a fan of the outside coil but had luck with it on the little notch rotor in the mag lev base. Since we have mentioned coils do you mind letting us know what you think of the S shaped coil that goes around the outside but surrounds the entire rotor? Tis is all one single winding and goes across the N then over to the S and back the other way etc. until it goes all around the outside and has wires aligned with all six magnets.
    Thanks John
    John Hav

  2. #22
    It is, I believe he referred to it as the baseball stitch coil?

    @ JohnHav, have you ever built a three coil window, like the one in Johns video below? If I remember correctly some of Johns lab notes on the window motor specified that steel/iron could be used in the rotor, not shielding the magnets. A non magnetic shaft was used, and the "core" of the rotor is sometimes marked void/epoxy. I have noted John build window/energizers where the rotor appears to be non magnetic, the plastic bike wheel for example. The high speed window motor as seen below doesnt use steel/iron in the rotor design.



    Regards
    Last edited by Ren; 08-10-2012 at 02:41 PM. Reason: correction

  3. #23
    John,

    That Zero force motor video is nothing less than stunning. Thank you for showing it.
    Last edited by DrCool; 08-10-2012 at 04:05 PM.

  4. #24
    Yes Ren, I have seen this video, I've watched it many times. This is probably the nicest build I've ever seen. I'm envious. I haven't made a three coil like this one. There's something else I have in my head and just can't shake it:
    Free energy window motor
    Here John shows a self running window motor, unless I'm mistaken. The build is only slightly bigger than my little one, the circuit seams to be a simple half wave. In the video John states that he can disconnect the battery and the motor will continue to run while the capacitor will continue to rise as was the input battery. This is different from self running until the capacitor runs down. This to me is the clearest and simplest demonstration of over unity and self running that I have seen so far and it doesn't look like it requires anything that most of can't make. Knowing the right materials the circuit, and how to tune the system would appear to be the question. There doesn't seem to be any cap pulsing. This is something we should be able to do. This is also the last time I'll reference this video and make that assumption here.
    Thanks for reminding me about the Video Ren. I can watch it over and over.
    John Hav.

  5. #25
    Hello either John. Can I sight an example? I have recently built a stator motor which is possibly a more sophisticated version of the fan motor project. The stator is more like 3" diameter and 12 legs. I am currently running the motor with one trigger and two power coils. I use the half wave circuit. As a mater of fact I'm using the little transistors as talked about a few times here. I have the extra power coil connected to a FWBR. I can run at 12 volts and between 120-150 ma. The charge circuit is very surprising considering the little transistors. I can easily charge a 330 volt 120 uF photo flash cap to 40-50 volts in less than a second. The cap discharge is a good whack with a nice blue spark. Last night and this morning I tried some charging tests with 7 ah motor cycle batteries. Surprisingly the charge looked pretty good. Now the question: If I would have had another identical power coil or two or three more could I charge a battery on each of them? This would seam to meet the description above. If L1 and L2 are running the motor and coil L3 was a good charger would L4 and L5 be equally as well? If so that would be great but here's the other thing: Would the load on the input go up with every battery connected? Would 2 for 1 actually mean you have more potential available from the two or three charged batteries than you had available from the run battery? Sorry John K, you've heard this before from me so this will be the last time I mention it here.
    PS. This is all together different than using nodes right? Oh and one other question: Even though I'm having some promising charge characteristics, I'm probably not conditioning the batteries with this type of motor and circuit right? The scope does show some spike activity though.
    John Hav

    Added as an edit: I've been driving and am slightly out of town but thinking about what I said above makes me think I shouldn't have asked the questions but just wound another stator and try what I'm talking about. I won't be able to test further till Monday but I remember a temporary jump in current draw when connecting the capacitor. I don't think this happened when I connected the battery, as a matter of fact after running for a while the run battery starts to climb. how far that will go I don't know I'm sure it won't return to a starting rest voltage. I think the tuning changes as the charge battery starts to go up in voltage When I get home I should post a video for us to look at, if you're interested. I'd like an opinion as to whether the characteristics look like something worth pursuing or may not be what would be expected from the half wave circuit. Oh and I might have the answer already from John when it comes to the 2 for 1. Maybe right? It might depend oh how well you can match the impedance of a Class B amplifier circuit. That brings up a thought: To get another power coil on the stator the winding ratio would have to come down in order to fit. the 480 turns would drop to a little less but the coil resistance would be less than 2 ohms also which would probably match the impedance of the battery a little better No?
    Take care all, have a good rest of the weekend.
    John Hav.
    Last edited by DadHav; 08-11-2012 at 12:23 PM.

  6. #26
    Hi John, I don't think I've seen all of Carl's motors but the ones I saw where called A field motors if I remember right and their coils where horizontal and to the sides of the rotor. I'll see if I can find a video of what I'm talking about. It looked like a good idea to me, but I haven't seen it implemented on a high quality build yet. I'm sure it will end up being something you've considered at one time or the other but we'll see.
    John Hav.

  7. #27
    Senior Member John_Koorn's Avatar
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    Quote Originally Posted by DadHav View Post
    Now the question: If I would have had another identical power coil or two or three more could I charge a battery on each of them? This would seam to meet the description above. If L1 and L2 are running the motor and coil L3 was a good charger would L4 and L5 be equally as well? If so that would be great but here's the other thing: Would the load on the input go up with every battery connected? Would 2 for 1 actually mean you have more potential available from the two or three charged batteries than you had available from the run battery?
    John Hav.
    DadHav,

    Yes, we'll thought out. I think you should try it and will be surprised.


    John K.

  8. #28
    Hello John, Thanks. I didn't think of trying a separate FWBR on L2 power coil. Normally it isn't to productive for me with the half or full wave, but this case may be different. I'll give it a try tomorrow when I get home. I could try charging two batteries separately that way, or series the two FWBR's and try two batteries in series. I haven't tried two batteries on the output of L3 yet either. It would really be funny to charge 2 for 1 with a half wave made from the little MPS-A06 / MPS-A56 - 2N2222. I wish I wouldn't have lost one of my triggers which checked open at the end of the wind. I wonder how this would be working on a full wave circuit. Well here's the thing though, I tried one side of my full wave board with the large MJL 21193-4 transistors and did not get the same results. The motor just had a tendency to want to run much faster. I have a feeling the frequency generated from the lower RPM of the small transistors is closer to having resonant tunning. My Son said I should take my vintage McIntosh stereo apart to see how the amplifier circuit is made. I have a feeling I'm looking at another flash in the pan that might disappear if I change anything at all. I hate to even talk about things like this if it's not likely to be duplicated easily. I may wind another motor and leave this one aside while a charge a few batteries with the one that's working. Anyway, I'll let you know what I find out next week. John Asked me to post the circuit from the low voltage / current video. I have to get to that too.
    John Hav

  9. #29
    Hello John, Patrick found the picture for us, but I think I've seen the wind on a 6 magnet motor video. Yes, it is Carl Hurst's picture. How do you feel about the wind? Maybe that's not fare. Do you know of any videos or conversations that have rendered good results from the configuration? I can see a few things that are useful, like it saves some wire length right? You could remove the coil from the rotor or the rotor from the coil easily. Also a coil form could be made to allow an air gap adjustment. Something like a Chinese finger trap if you know what I mean. I'm finding out in some cases the close air gap may not always be the best choice. Have you noticed this too.
    Thanks John
    BaseballStitchStator.jpg
    John Hav

  10. #30
    Hello John and others. I think the best circuit to show the use of the small transistors is associated with the video Window Motor Runs Window Motor:
    Window Motor Runs Window Motor. - YouTube
    Here is a drawing of the circuit. I hope the lettering won't be to small to see.
    mot runs mot.jpg
    Here is a video of the Notch Rotor in the Magnetic Levitation Base in case someone hasn't seen it. This is an outside coil which is not my favorite either but it was just a little experiment that worked. In this video the rotor will be running from as little as 30 micro amps on a mini solar cell.
    Window Motor On Water Battery & Solar + (Notch Rotor) - YouTube
    The meter I'm using is showing average amperage. The individual power pulse is maybe a few milliamps. How do I know it's the average? I checked the discharge rate from the capacitor then I then found a resistor value that drained at the same exact rate. I then checked all my meters to see if any of them matched the milliamp rate from the calculation. It just so happened the meter I'm using was very close. A tiny tweak on the current adjustment made it just about right on.
    I don't know if any of this is good for anything, but it's a fun alternative to the blocking oscillator for showing off Earth Batteries or other small potential cells.
    I'd be happy to answer any questions.
    John Hav
    Attached Images Attached Images
    Last edited by DadHav; 08-21-2012 at 08:07 AM. Reason: Changed Picture

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