sinusoidal current source in SPICE?

Discussion in 'Homework Help' started by MattCarp, Mar 21, 2009.

  1. MattCarp

    Thread Starter New Member

    Mar 21, 2009
    3
    0
    I was working on a drill problem and wanted to check my answer with SPICE, but I had a hard time determining what the SPICE code would be for a sinusoidal current source: 3 sin (2t - 60) (the "60" phase angle is in degrees and ω=2)

    Any ideas?

    Then for the analysis, I wouldn't have to sweep AC would I? Wouldn't this be sufficient:

    .AC LIN 1 0.3183 0.3183

    (of course, where freq = ω / 2 π = 0.3183 Hz)

    Thanks.
     
  2. MattCarp

    Thread Starter New Member

    Mar 21, 2009
    3
    0
    ok,

    I was able to find a better manual online. Here's the syntax for a current source:

    I{name} {+node} {-node} [[DC] {value}] [AC {mag} [{phase}]]

    So, in my example, the source would be

    I1 1 2 AC 3 -60

    Then I'd need an analysis statement with the frequency!

    .AC LIN 1 0.318 0.318

    all better now!
     
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