reason in the circuits

Discussion in 'General Electronics Chat' started by shahid scorpio, May 20, 2012.

  1. shahid scorpio

    Thread Starter New Member

    Oct 24, 2010
    1
    0
    i have a question which i want to ask from you peoples
    1) why we use inductor in series with the thyristor??
    2) why we use diode parallel with the supply??
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    I don´t do either of those. Can you post the circuit?
     
  3. #12

    Expert

    Nov 30, 2010
    16,298
    6,810
    Putting an inductor in series with a triac or SCR is to limit the dI/dt because they have that kind of limit. Too fast burns the semiconductor due to hot spots.

    As for the diode...depends on the circuit.
     
  4. dataman19

    Member

    Dec 26, 2009
    136
    29
    Maybe the diode is being used as a back EMF shunt for use in an inductive load? Or even a clamp to help protect a circuit?
    ...
    Either way, we are arguing apples vs oranges, and or grapefruit vs bananas without a schematic...
    ...
    For an example of a bypass diode, check out "this" power regulator link:::
    ...
    http://www.phoenixcomputerlabs.com/All-About-Mixers/LM317.html
    ..
    Dave
    Phoenix, AZ
     
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