The Automotive-Grade Device Handbook

ID 683121
Date 5/27/2022
Public
Document Table of Contents

4.2. Power Analyzer

The Power Analyzer tool in the Intel® Quartus® Prime software is a power analysis tool that helps you calculate your design power consumption accurately to ensure thermal and power supply budgets are not violated after your design is complete. The Power Analyzer tool requires your design to be synthesized and fitted to the target device. Availability of information such as design resources, how the design is placed and routed on the target device, and the I/O standards assigned to each I/O cell allow the Power Analyzer tool to provide accurate power estimation.

The process of using the Power Analyzer tool consists of the following three parts:

  • Specifying sources of input data
  • Specifying operating conditions
  • Running the Power Analyzer tool

The input data consists of the signal activities data (toggle rates and static probabilities) of the compiled design. Signal activity data can be derived from simulation results, user assignment in the Assignment Editor, user-defined default toggle rate, and vectorless estimation.

The operating conditions include device power characteristic, ambient and junction temperature, cooling solution, and board thermal model, all of which can be set in the Intel® Quartus® Prime software.

The Power Analyzer tool calculates the dynamic, static and I/O thermal power consumption, current consumed from voltage source, a summary of the signal activities used for analysis, and a confidence metric that reflects the overall quality of the data sources for the signal activities.