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.op Line
- General Form:
.op
The inclusion of this line in an input file will force WRspice to
determine the dc operating point of the circuit with inductors shorted
and capacitors opened. This is done automatically prior to most other
analyses, to determine the operating point of the circuit, yielding
transient initial conditions or the linearized models for nonlinear
devices for small-signal analysis. It will not be done in transient
analysis if the uic keyword is given in the transient analysis
specification, or if Josephson junctions are present in the circuit.
WRspice performs a dc operating point analysis if no other analyses
are requested, and there are no Josephson junctions in the circuit.
In interactive mode, the op command can be used to compute
the operating point.
In operating point analysis, any .save or save directives
will be ignored. All node voltages and branch currents will be saved
in an "op" plot in interactive mode.
Stephen R. Whiteley
2006-10-23