nodeset Statement

The nodeset statement supplies estimates of solutions that aid convergence or bias the simulation toward a given solution. You can use nodesets for all DC and initial transient analysis solutions. If you have more than one nodeset statement in the input, the simulator collects the information.

nodeset node = value { node = value }

Each node is a signal. Each signal is a value associated with a topological node of the circuit or with some other unknown that is solved by the simulator. For example, the unknown value might be the current through an inductor or the voltage of the internal node in a diode.

For example, the statement

nodeset top.n1=0 top.out=1 top.OpAmp1.comp=5 top.L1:t1=1.0u

specifies that

• Node n1 should be about 0 V,

• Node o ut should be about 1 V,

• Node comp in subcircuit OpAmp1 should be about 5 V, and

• The current through the first terminal of L1 should be about 1u A.

Related Topics

• The ic and nodeset Statements
• Spectre AMS Designer Analysis Support