Changes

Failure to converge in DC analysis usually results from incorrectly specifying circuit connections, initial values, or model [[parameters]]. Regenerative switching circuits or circuits with positive feedback will often fail to converge unless the OFF option is used for some of the devices in the feedback path. AC frequency sweep analysis performs a nodal admittance solution of your circuit using the "Small-Signal Approximation". Under small-signal assumptions, all the nonlinear active devices of your circuit are replaced with locally linearized behavioral models established about their computed DC bias points.

The following table lists [[RF.Spice]]'s available analog circuit simulation and test types (click on each type to learn more about it):