Exporting DC IR Information

Complete these steps to export DC IR information.

  1. Do one of the following:
    • From the Results tab, select DC IR Drop > [Simulation Name] (e.g., DC IR Sim 1).

      DC IR Drop Options

    • From the Results window, right-click [Simulation Name] (e.g., DC IR Sim 1).

      DC IR Drop Simulations Results Menu

  1. Select an appropriate export option. Export options include (but are not limited to) the following:
    • Export Ansys Mechanical Power Map – exports a power map.
    • Export Icepak Power Map – copies power dissipation files to a specified folder. These files can be opened using Icepak.
    • Export Report – exports a report in *.html format.
    • Export Power Tree – exports a power tree in *.png format (*.bmp on Linux). The power tree shows the current and voltage drop across each branch and component. Actual values are compared with the user's expected values, and determines the Pass/Fail result of each terminating component.
    • Export Spice Netlist – exports a SPICE Netlist in *.sp format.

  1. A settings window opens with an appropriate options for the selected export type, such as the following examples.

Export Report > Export DC IR Drop Report Window

Export DC IR Drop Report Window

Export Power Tree > Export DC Power TreeWindow

Export DC Power Tree Window

Note:

If the source/probe is a distributed current, all of the pins from a single component can be combined into one block for general analysis. Check the Aggregate pins on a net within a component as one block box beneath the Edit Selected Row(s) area to proceed.

Before Pin Aggregation

Pin Aggregation Example

The result will display the combined pins' average voltage loss as well as the most significant voltage loss experienced by any of the pins.

After Pin Aggregation

Pin Aggregation Example

Export Spice Netlist > Export DC SPICE Subcircuit Window

Export DC SPICE Subcircuit Window

  1. After finalizing the configuration, click OK to generate the export (e.g., produce and open a report in *.html format).

    DC IR Drop Simulation Report Example (HTML)

From the DC IR results menu, you can also view DC IR results and view and change DC IR properties.