General Power Measurements
This guide is a short tutorial on how to perform power measurements of any kind of electronic system using the Lynsyn Lite power measurement board.
To follow this tutorial, the supporting software must be installed. If you have not already done this, please follow the Installation guide.
At least one of the sensors of the Lynsyn board must be connected to the device that is to be measured. The general idea is to measure the power delivered to a device from a power supply. To do this, the + and - leads going between the power supply and the device to be measured must be routed through the Lynsyn sensor. The power supply - lead should be connected via the Lynsyn GND connector, and the power supply + lead should be routed through the Lynsyn power sensor. This is shown in the figure above.
Open the lynsyn_viewer application. In Ubuntu press Alt-F2 and then type lynsyn_viewer. In windows, start the application from the Lynsyn folder. The following window should appear:
Press the "Profile" toolbar button. The following window will appear:
Specify how long you want to sample by entering the number of seconds into the "Duration" text input box. Sampling will start immediately when you press "OK". After the specified duration, lynsyn will stop sampling and the lynsyn_viewer will show the profile data:
Here you will see the entire profile run represented as a power graph with time on the X-axis. The Y-axis can show either current, voltage or power, something you can choose with the combobox in the toolbar. There you can also specify which sensor you are visualising.
Use the mouse scroll wheel together with modifier keys on the keyboard (shift, alt, control) to zoom or adjust different aspects of the graph. Use the mouse and click-and-drag a region to zoom in on that region. Left click a point to get point data in the status bar. Use right mouse button to view the entire dataset.