Added: 3 years ago
From: RonL2524
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  • Try it with a capacitor instead of a battery and see if it keeps going?

    Also, is the Circuit Diagram available?

  • Energy from (permanent) magnets isn't free. Every time you make them do work, you decrease their magnetism slightly. This is why a gauss gun isn't free energy.

  • @emanresUyttiWtresnI I thought magnets loose there energy at a rate of 1% per year no matter how much you use them?

  • @CyTou see it works and thats cool

  • Guess where the energy from the back emf comes from?? The power supply! Yes, so you gain nothing in energy at all. It is bs.

  • @sorova It's not free energy, but just a way of increasing the efficiency of current motor design. Back EMF reduces the efficiency, because it creates an opposing force to the direction you want the motor to turn. If you can recover the energy loss from that, you get much more efficient motors.

  • @Nomoreidsleft That back emf IS already used in any dc motor. EgXIa = Torque X Speed (rads/sec). Where Eg is back emf and Ia is armature current. Torque is developed torque.

    This is called developed power. So were you to use up that energy with something else then you reduce the motor speed. Back emf is also directly prop to speed (for a fixed field). I am an elec engineer by the way!

  • Comment removed

  • Ron,

    Where can we get plans and a schematic

  • @wienguy - lots of free plans online for adams motor-i used junk kicking around my shop so no plans.i willl youtube schematic this winter.

    i used a 5 inch floppy drive(commodore 64-ha!) for bearing/chassis and glued cd disks to floppy turntable,buddy scored me coils ,magnets and hall effect sensors. .i have lots of transistors in shop so i just used what i had.

    hope this helps

  • nice one ! i am doing an adams motor, how do you capture th back-emf, what kind of diode ?

    thx

  • @deepcut71 -i use a standard in-4007 diode.

    to capture back emf-i connected a dead battery between between diode and ground(neg).

    thanks for interest

  • @vid009, when i get some time, i will upload a vid showing schematic and reverse emf diode-thanks for interest

  • @RonL2524

    Where can we get plans and a schematic?

  • @vid009, when i get some time, i will upload a vid showing schematic and reverse emf diode-thanks for interest

  • Wow an electric motor that uses power like all other electric motors. What will they think of next? Yawn.

  • @LiamXaoh -i agree-it's is just anouther motor that uses electricity, but what i find interesting about this design is the efficiency and possibly charging batteries with no extra load-thanks for comment

  • @RonL2524 - don't believe all you see. It is the same as all other such devices. It requires more energy to run than is available as out put. If it was any sort of free energy device it wouldn't need an external power supply.

  • @LiamXaoh -this motor will not run unless externall power is applied.

    but,i have charged a battery with the reverse emf(normally shorted to ground.

    with no increase on power drawn-i'm thinking how many other devices just waste reverse emf(short to ground through diode)when a battery could be charged instead-just some thoughts.

    thanks for interest.

  • @RonL2524 - I think you are missing the point. In essence the external power supply is providing the energy to charge the battery. The device in the middle is a distraction.

  • @LiamXaoh i agree with you-all i'm talkng about is harnessing waisted reverse emf energy-there is lots of ccts out there that short reverse emf and i have charged a battery with no increase of power demand from what i could tell of my equipment.

    no matter if i had reverse emf diode shorted or "gong through a battery"?

    let me know what you think?

    thanks for fast responce-the more opinions-the better-i figure

  • @RonL2524 sorry-i should have said "if i had reverse emf diode anode connected to ground(neg) or connected to ground(neg)THROUGH a dead battery charging-i saw no change in power demands of cct ,from what i could tell, i saw a battery charge as though i was harnessing waisted reverse emf"-no free energy

    just using otherwise, waisted revese emf?

  • @RonL2524 - if you "harness" wasted energy then you must supply more energy to compensate. Measure the input power when the device is not charging a battery and when it is.

  • Hi LiamXaoh- i Measured the input voltage and amps-Measured rpm with scope and saw no change if i was charging or not.i figure that reverse emf (it gets generated weather i'm charging or not) is waisted (diode shorts it to ground(neg)) and using it to charge a battery is just using up otherwise waisted energy?therefore-no increase on input?-ley me know what u think?

    thanks for input.

    RonL2524

  • @RonL2524 - something doesn't add up. If you are able to extract energy to charge a battery then the input volts/amps must be impacted. I assume then the "waste" energy was being lost as heat prior to the battery being connected. The speed of the rotor should change if there is any difference in the reverse emf that the rotor "sees" when the energy is diverted to a battery, unless of course the watts to the battery exactly match the former emf load.

  • @LiamXaoh -i agree with you-reverse emf was being lost as heat when anode connected to ground(neg)(diode must heat up)-the charge rate for battery was not a lot-took hours to charge-more power was used to run motor.my thought was-think about how many pieces of equipment use "switching power supplies"-we are still talking about a coil being switched on and off by a transistor and a reverse emf diode installed so transistor doesn' t blow up.

    this reverse emf is wasted traditionally-use it?

  • @LiamXaoh that's what I was thinking too. It seems to be the case in a lot of these expositions.

  • Hey @oatstao ,thanks for comment-i've been planning to repeat my test (adams motor)and youtube it,but i'm more interested in how this might be used to harness reverse emf that is usually wasted in switching coil circuits(many ccts waste reverse emf from what i can gather)-winter is here-i got more time-thanks for interest

  • Hello Vercingetorix-i started tinkering as a kid because i am interested in how eveything works-i started with old tube radio's fixing bicycles, then moved to cars,motorcycles & tv's-eventually went to collage for electronics-couldn.t afford univeraty so no degree.once i knew electronics-i found that i could understand technical & scientific publications & went from there-im kinda a "learning for life" dude-any books?-scientific american,carl segans books,...etc-thanks for interest

  • wow very cool man, hey how did you get started tinkerin' any book recommendations?

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