Calculate inductor value

Discussion in 'General Electronics Chat' started by, Dec 16, 2009.


    Thread Starter New Member

    Dec 16, 2009
    Hi guys,

    Pretty n00b to a lot of this stuff. I came across a laptop computer the other day with a choke on the inside (straight after DC). I began to look at the chokes on other laptops I had lying around. Some are beads, some are cylanders with the center drilled out and the wire passes through the center.

    I would like to know how to calculate the Inductor values of some of these chokes with some sort of basic circuit.

    I have a scope but not a signal generator - my searches on this forum makes me think I will need a signal generator.

    I know its made of material 44.

    I also think that I might be able to calculate the henries based on the physical properties of the choke? length, OD/ID diameter, material etc.

    Cheers in advance,

  2. Duane P Wetick

    Active Member

    Apr 23, 2009
    See for lots of information about chokes, ferrites, inductors, cores, beads etc. WARNING! over 1000 pages, beginners stay away.

    Cheers, DPW [ Spent years making heaters out of op-amps.]