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Beating lenz's law

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  • #61
    hello

    i have notice that bemf really depends from current (ampers) not power in our pickup coil

    so we have strong bemf when making let say 10A at 10V = 100W
    but we have very little bemf when we have 1A at 100V yet still 100W

    so all we have to do is make high voltage coil that will create a little or no current but high voltages P=U*I

    wojsciech
    Last edited by wojwrobel; 05-04-2010, 08:23 AM.

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    • #62
      Originally posted by tjnlsn255 View Post
      You do want some spacing between the magnets but you can put coils on both sides of the rotor to double your coil output, possibly....

      Tj
      i did such a experiment and yes it doubles the output !!!!

      i also used toroid core and there is no bemf because it stays in core !!!!



      cheers
      wojsciech

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      • #63
        Originally posted by wojwrobel View Post
        hello

        i have notice that bemf really depends from current (ampers) not power in our pickup coil

        so we have strong bemf when making let say 10A at 10V = 100W
        but we have very little bemf when we have 1A at 100V yet still 100W

        so all we have to do is make high voltage coil that will create a little or no current but high voltages P=U*I

        wojsciech

        The problem here is that to make a high voltage coil, you will need many more turns than with a low voltage coil, so even though the current may be halfed, if the number of turns is doubled then you will get the same amount of drag on the rotor

        But I like the way you guys are thinking and I also think this is another area worth investigating....

        Lenz seems to have a problem for every solution But he can't be right ALL the time.
        "Theory guides. Experiment decides."

        “I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
        Nikola Tesla

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        • #64
          THIS IS IT!!!!!




          cheers from poland
          wojsciech

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          • #65
            How much energy are you able to extract from the coils compared to the energy required to spin the rotor?
            "Theory guides. Experiment decides."

            “I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
            Nikola Tesla

            Comment


            • #66
              Originally posted by wojwrobel View Post
              hello

              i have notice that bemf really depends from current (ampers) not power in our pickup coil

              so all we have to do is make high voltage coil that will create a little or no current but high voltages P=U*I

              wojsciech

              is not that easy wojsciech...

              i have allready tested high resistance coils (high volts, less amps), and the drag is the same or even worst that with low resistance coils (less volts, more amps)...

              for exemple... a low resistance 10ohm coil will produce 1,5 volts and near 50mA... and you will have some drag,

              but if you try an high voltage coil, like 1.5K, will show me 60 to 80 volts, but if i load that coil, even if it is generating a small amount of current, the rotor will almost completely stop.

              Comment


              • #67
                toroid

                Originally posted by wojwrobel View Post
                i did such a experiment and yes it doubles the output !!!!

                i also used toroid core and there is no bemf because it stays in core !!!!

                cheers
                wojsciech
                let me see if i understand you, you used toroid as generator coils? and you are generating energy with them using your N-S--N-S rotor?

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                • #68
                  hello
                  well its not toroid exacly that i used but i think that toroid will also work but you have to wind it just like in picture,

                  i used 2 u cores wich gave me a closed loop for magnetic flux so the bemf will not escape.

                  u can use just one rotor also it will work but half power


                  Uploaded with ImageShack.us

                  it is just an idea i have to build much more stady rotor to try it because core attracts magnet so much that they stay with the core instead rotor...
                  wojsciech

                  ps. im just trying to use this guy idea and convert it to work with PM so i can use it in my wind generator
                  YouTube - BI-TOROID VIDEO MAY 2008.mov
                  Last edited by wojwrobel; 05-04-2010, 11:03 AM.

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                  • #69


                    very good idea wojsciech...

                    yes, if the coils are like in your diagram, you have 2 solenoids wound in both sides of the toroidal core...

                    i will try it!

                    hugs

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                    • #70
                      just a doubt

                      from where do you get your U core?

                      i was thinking to wind the 2 solenoids in a normal toroid ferrite core.. but that will be very boring! in your config makes it a lot easy... bacause you have the core in 2 separeted parts, and you just have to put a normal coil inside it!


                      king regards
                      Last edited by juju; 05-04-2010, 11:14 AM.

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                      • #71
                        hello

                        you can find this core in old tv and some older polish stores have it for 3 usd

                        i dont know where you live but if you google " u core" you will find many sites and its not that expensive
                        maybe here
                        Micrometals, Inc. - Power Cores they also have special plastic for wire

                        wojsciech

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                        • #72
                          I was thinking more of round toroids mounted parallel to the magnets....

                          This configuration is supposed to develop more torque....

                          Hopes and Dreams....

                          Tj

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                          • #73
                            hi tj

                            we are using the toroids as generator coils, and not as drive coils...


                            woj, i think from my experience, that you dont will notice the bemf, because the ferrite U core is allready dragging down the rotor by the atraction of the rotor magnets...

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                            • #74
                              juju

                              have you notice that when you slowly push magnet toward core you have acceleration? and this acceleration is equile to work that have to be made to remove magnet from core !!! SO TOTAL IS ZERO

                              cheers
                              wojsciech

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                              • #75
                                hmm

                                woj, maybe my core is to big... i dont notice any acceleration because my rotor magnets are very close to each other... so the core is only holding down the rotor!

                                have to try different setups!

                                hugs

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