Zener knee current??

Discussion in 'Homework Help' started by OMFG, Jul 12, 2011.

  1. OMFG

    Thread Starter New Member

    Jul 12, 2011
    1
    0
    The zener diode has the following specifications: IZK = 3 mA, IZM = 100 mA. What is the minimum allowable magnitude of RL?[​IMG]
    what is Izk and Izm?.. pls help out.. appreciate very much. THANK YOU!
     
  2. stinky111

    Member

    Apr 7, 2011
    39
    1
    Hi,
    Search the e-books & reference data here & you should find most of what you need,
    This should be a good starting point for you: http://www.allaboutcircuits.com/vol_3/chpt_3/11.html
     
  3. jegues

    Well-Known Member

    Sep 13, 2010
    735
    43
    Izk is the knee current of the zener diode. When the current flowing into the zener is larger than the specified knee current, it will permit significant current flow in the reverse direction.

    Izm is the maximum zener current the diode can handle without breaking. It is often found by dividing the power rating (Pz) by the breakdown voltage (Vz).

    Hopefully that clears up any confusions.
     
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