Operating Point Analysis

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Description

An Operating Point analysis is used to determine the dc operating point of a circuit, with inductors shorted and capacitors opened.

Setup

There are no parameters to define for this type of analysis. It can only be enabled or disabled, from the Analyses/Options list of the Analyses Setup dialog.

Notes

A (DC) Operating Point analysis is automatically performed prior to a Transient analysis to determine the transient initial conditions. The exception to this is when the Use Initial Conditions parameter is enabled on the Transient/Fourier Analysis Setup page of the Analyses Setup dialog. In this case, analysis starts from the defined initial conditions (current and voltage) of the circuit.

An Operating Point analysis is automatically performed prior to an AC Small Signal, Noise and Pole-Zero analysis, in order to determine the linearized, small signal models for all non-linear devices in the circuit. It does not take into account the existence of any AC sources.

The simulation results are displayed on the Operating Point tab of the Waveform Analysis window.

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