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free wheeling diode

hello,
could any body tell me what is the purpose and design criteria of selecting free wheeling diode used in circuit for switching inductive diode.
I also would like to have a detailed analyzed answer(mathematical]
for the same.




Comments

  • iluvtvcailuvtvca Member Posts: 1
    : hello,
    : could any body tell me what is the purpose and design criteria of selecting free wheeling diode used in circuit for switching inductive diode.
    : I also would like to have a detailed analyzed answer(mathematical]
    : for the same.
    :
    :
    :
    :
    :
    not an expert by any means, but when an inductor discharges there is a large voltage that is induced, calculated by e=L(di/dt) so the amount of voltage that will be induced is the inductor (L) times the amount of current that is flowing through the inductor over the rate of change. i.e a 250mH inductor with 2 amps flowing through it that is turned off in 2ms will produce 250V.


    hope that helps

  • Noddy_SANoddy_SA Member Posts: 6
    I suggest you look into the use of diodes and capitors used in voltage triplers for monitors and TV
    All the best
    NG

  • Shawn CarterShawn Carter Member Posts: 0

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