DC to DC booster question

Discussion in 'The Projects Forum' started by superman185, Nov 24, 2013.

  1. superman185

    Thread Starter New Member

    Jun 18, 2013
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    I'm creating a dc to dc booster circuit and I am wondering if it keeps the same frequency going out as coming in to the MOSFET? Even when stepping up the voltage.
     
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    I don't understand your question. A DC output doesn't have a frequency. Can you post the schematic?
     
  3. superman185

    Thread Starter New Member

    Jun 18, 2013
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  4. #12

    Expert

    Nov 30, 2010
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    The only frequency going on in there is the one you provide, then C5 and C6 do their best to make sure you can't see it on the output.
     
  5. superman185

    Thread Starter New Member

    Jun 18, 2013
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    Actually I want it on the output. So is there. Safe way to take out the capacitors and not have a overload.
    Or loss in step up voltage.
     
    Last edited: Nov 24, 2013
  6. Austin Clark

    Member

    Dec 28, 2011
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    Sounds like you wanna make some sort of voltage amplifier.
     
  7. tubeguy

    Well-Known Member

    Nov 3, 2012
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    Superman185.:
    What voltage, waveform, frequency and current is your input signal?
    What voltage, waveform, frequency and current do you want at the output?
     
  8. #12

    Expert

    Nov 30, 2010
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    Very dangerous to remove all capacitors because the output voltage will go to hundreds of volts. You will be doing a balancing act with the frequency, capacitance, and the load resistance to get a stable wave shape.

    See my blog to learn how the inductor causes very high voltage if the capacitance is too small.

    http://forum.allaboutcircuits.com/blog.php?b=478
     
  9. superman185

    Thread Starter New Member

    Jun 18, 2013
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    Yes I want it to amplify.

    But I also need it to vary in frequency aswell.

    I guess there is no real way to do so without a transformer is there?
     
  10. superman185

    Thread Starter New Member

    Jun 18, 2013
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    12v, square, 2-4MHz, no more than ten amps going in.
    600v, square, 2-4MHz, no more than .2amps coming out.
     
  11. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    That is enough to KILL you !!:eek:
    As you clearly lack experience in converter circuits, don't even think about building one with this output.
     
  12. superman185

    Thread Starter New Member

    Jun 18, 2013
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    Ok it's enough to kill someone.
    But that's not what it's for.
    And don't assume I am not experienced enough to understand the dangers.
    Or have not taken precautions.

    I'm making a table top electroplating system for jewelry.
    Yes it can be achieved with lower voltages but for the etching that is required without using acids (safety) requires a higher voltage.
     
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