Semiconductor devices in SPICE

Discussion in 'General Electronics Chat' started by GentleRV, Nov 1, 2011.

  1. GentleRV

    Thread Starter New Member

    Dec 18, 2010
    10
    0
    This I see as part of a Power Mosfet:

    General form: m[name] [drain] [gate] [source] [substrate] [model]

    .model [modelname] [nmos or pmos] ( [parmtr1=x] . . . )

    Example: m1 2 3 0 0 mod1
    m5 5 6 0 0 mod4
    .model mod1 pmos
    .model mod4 nmos ( vto=1 )

    My question is after the m1 are numbers to which those refer?
    is any number fine?
    Please use a real datasheet from a manufacturer to produce a spice model.




     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Welcome to AAC!

    I am moving this thread where it is more likely to get attention.

    Have fun!
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    The numbers "2 3 0 0" are nodes. The order of the nodes is important. The names of the nodes are generally not important; but it can be helpful if they are meaningful names.
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,001
    3,229
    To perhaps further clarify, the nodes are connection points in the circuit. Thus all nodes of the same number are connected together. In Spice, node 0 is always common (ground).
     
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