Inverter with delay

Discussion in 'Programmer's Corner' started by aashish, Nov 15, 2010.

  1. aashish

    Thread Starter New Member

    Feb 17, 2010
    13
    0
    I want to model a CMOS inverter as
    output = NOT (input) after 10us
    in Spice. I used LTspice for that and I am getting that,
    [​IMG]
    (ckt1.jpg, please see attachments)

    but I am expecting that,
    [​IMG]
    (ckt2.jpg, please see attachments)
    Please help me to create a proper circuit that shows the delay between input and output waveforms clearly.
    If possible please send me a working code/file e.t.c.

    Thanks......
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    Put R1 between C1 and node Out.
     
  3. aashish

    Thread Starter New Member

    Feb 17, 2010
    13
    0
    Thanks a lot for replying but I still not getting the result, on putting R1 between C1 and out I am getting this,
    [​IMG]
    [ckt3.jpg(please see attachments)]
     
    • ckt3.JPG
      ckt3.JPG
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      111.5 KB
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      37
  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    The output is between C1 and R1.
     
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