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    rfc coil construction

    hi all,
    I am not able to understand as how to calculate the value of the RFC in a biasing circuit.I know the operation and also the purpose of the RFC..
    I read it in some other posts here where they said we have to take 10 times the input impedance.

    Can anyone throw light on that?

    •   Alt28th April 2009, 11:36

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    Re: Value of the RFC in a bias circuit.




    •   Alt9th May 2009, 00:34

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    Re: Value of the RFC in a bias circuit.

    Generally there is a rule of thumb that the impedance of the RFC is at least ten times higher than the impedance can be seen from this node without RFC.

    But i prefer to choose as large as i can.

    The impedance of an inductance is jwL. Take wL ten times larger than the input impedance.



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