2024年4月16日发(作者：)

AN969: Measuring Power Consumption on

Wireless Gecko Devices

Silicon Labs offers a complete portfolio of fully-certified modules

and SoC solutions known collectively as the Wireless Gecko de-

vices. This application note explains how to measure the power

consumption of these devices.

The setup and procedure recommended for measuring the power consumption of Wire-

less Gecko devices are presented here in detail. As a reference, an example is given

where the current profile of an EFR32BG1 SoC is captured with a DC power analyzer

to determine power and energy consumption figures.

Alternative methods for measuring power consumption, such as the Energy Profiler tool

in Simplicity Studio, are also discussed briefly.

Note: The instructions and recommendations in this document apply to the power con-

sumption measurements of any Wireless Gecko device.

KEY POINTS

•A Wireless Gecko WSTK is required.

•The test device must be programmed with

a suitable test application.

•Three methods to capture power

measurements are discussed,

emphasizing the DC power analyzer since

it gives the best results.

•Simplicity Studio’s Energy Profiler yields

comparable average measurements to

those from a DC power analyzer at a

fraction of the cost.

Rev. 0.5

AN969: Measuring Power Consumption on Wireless Gecko Devices

Documentation

1. Documentation

The documents listed below (sorted by topic) may be helpful during the evaluation. You may download them directly from -

after registering and creating a user account, or you may navigate through Simplicity Studio's documentation interface to find

them and then download them.

Hardware

•The applicable Wirelesss Starter Kit User's Guide

•The applicable radio board reference manual

Software and Tools

•AN0822: Simplicity Studio User Guide (for Simplicity Studio 4)

•Simplicity Studio 5 User’s Guide, available at https// and through the Simplicity Studio 5 help menu

•UG343: Multi-Node Energy Profiler User’s Guide

•AN0948: Power Configurations and DC-DC

•AN1246: EFR32BG SoC Bluetooth® Smart Device Power Consumption Measurements