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fluctuating magnetic field generator design

Discussion in 'General Electronics Discussion' started by Ethan Mechat, Nov 18, 2018.

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  1. Ethan Mechat

    Ethan Mechat

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    Nov 18, 2018
    Hi All,

    trying to design a circuit with a solenoid to generate a magnetic field by a DC current.
    now I need to open and close the circuit at a certain frequency to make it a fluctuating field.
    What components do I need for this circuit?

    the real estate is an issue so the components should be very small in order of less than 1mm
    Thank you very much!
     
  2. duke37

    duke37

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    Jan 9, 2011
    Hope springs eternal:)

    Energy is needed to generate the field and this has to be dissipated to reduce the field.

    You will need to know the resistance and inductance and the frequency to be used.
    You will need a power supply, oscillator, switch (MOSFET), protection device (diode?). You might be able to get this on a 20mm by 20mm board.
     
    davenn likes this.
  3. Ethan Mechat

    Ethan Mechat

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    Nov 18, 2018

    Thanks a lot duke37! Would you be able to draw a simple schematics of how you would configure the components?
     
  4. duke37

    duke37

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    Jan 9, 2011
    I do not have the ability at present to show a schematic.

    Before a schematic can be developed, it is necessary to know the requirements.
    I suggest that you calculate the strength of the field and the area over which it is effective. Make a coil and measure resistance and inductance.
     
  5. BobK

    BobK

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    Jan 5, 2010
    Kind'a hard to wind a coil < 1mm in size.

    Bob
     
  6. hevans1944

    hevans1944 Hop - AC8NS

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    Jun 21, 2012
    Would you be able to answer some simple questions, like WTF are you trying to DO? @duke37 mentioned
    You earlier asked
    @duke37 responded with a list,
    suggesting all this might fit on a smallish circuit board. You have not said what components (very small) must be less than 1mm in size, nor given any reason for why they need to be of such size. It is "easy" with modern fabrication methods to manufacture microscopic-scale integrated circuits incorporating all the components that @duke37 listed, but YOU need to provide specifications for them. Unless you have the resources of a semiconductor fab available to design and manufacture an application-specific integrated circuit (ASIC), there is no way you will obtain a design that has 1mm size components.

    So... tell us what you are trying to DO and maybe someone here can help you. If this is another zero-point energy harvesting thingy, please troll somewhere else for "answers" because we don't do woo woo "science" here.
     
  7. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    How about 0402 inductors?
     
  8. Ethan Mechat

    Ethan Mechat

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    Nov 18, 2018

    Thanks man will do
     
  9. Ethan Mechat

    Ethan Mechat

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    Nov 18, 2018
    I've got a facility to do that part!
     
  10. Ethan Mechat

    Ethan Mechat

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    Nov 18, 2018
    Hevans ,

    I am really sorry I cannot reveal much information on this at this point but rest assured this is for an industrial application.
    Please do not think about the size and if you can help me understand how the circuit should look like.
    I'll do the calculations from there.

    Thanks
     
  11. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    There are a bazzilion ways to do what you want.

    See here for one.

    If you can't give us any more details then I will probably close this thread.
     
    davenn likes this.
  12. hevans1944

    hevans1944 Hop - AC8NS

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    It now appears you are mistakenly seeking information in an open and public forum for a proprietary industrial solution to some problem for which you feel you are not at liberty to provide any useful description.

    Why should anyone here on Electronics Point be willing to "help" you? I agree with @(*steve*) that, lacking any further useful information from you, the original poster, this thread should be closed. Most of us have better uses for our time than playing guessing games and "what if" scenarios. Ethan, perhaps you should consider joining another forum.
     
    davenn likes this.
  13. davenn

    davenn Moderator

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    Agree with previous posts

    if you are not willing to share ... then we are not willing to help by guessing / 20 questions


    thread closed
     
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