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LC Resonant Frequency Calculator Software

This LC resonant calculator software will help you to compute the resonant frequency of an LC circuit by assessing the fed input inductance and capacitance values





10 thoughts on “LC Resonant Frequency Calculator Software”

  1. Hello Swagadam
    Please help, I want to make my Inductor to be installed on my generator (my output is square wave at Ic555, i need a formula
    Of how to compute the henry in order to achieved Sine Wave.

    Thank you

    • Hello Romeo, I have not yet investigated inductor filters so I do not have the formulas with me right now, but I think you can use RC networks instead for the same results.

      By the way for what application do you need this?

      • Hi Swagatam,
        Thank you for promt reply
        This application for a 12-0-12/240 AC volts transformer.
        Can you send me diagram of RC networks for ic555 or 4017
        Supply volts 12 to 15 volts for ic555 output pin 3 im using 2n3055 and 2n2222.
        Thank you very much.

          • Hi Swagatam,

            Many Thanks

            My frequency range would be 60hz/65 on 220/240 vac
            Lastly is this diagram you uploads is for left and right output connection of 12-0-12 transformer.

            Best Regards,

            • Hi Romeo,

              Can you please tell what exactly are you trying to make, is it an inverter? If it’s an inverter then this concept will not work.
              I provided this for converting your IC 555 square wave into sine wave!

            • Hi Swagatam,
              Yes it is inverter and i used ic555 and a transformer 12-0-12/230 vac

            • I am sorry Romeo, a sine wave input cannot be used from the DC side for an inverter…you will have to use an SPWM at the DC side and then refine the output on the AC side with LC filter or simply with capacitors.

  2. Hi swagadam,

    i am moha, i really appriciated to you doing very good guidence upcoming engineers inspriation.

    i need some information about transformers core max saturated frequency like Iron core, ferite core
    pls reply and thankful to you

    • Thank you Moha,

      I am not sure about the exact frequency range for these variants, but it seems 20 to 200 Hz is suitable for iron core coils and 10kHz to 100kHz for ferrite based coils.

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