LabView process to measure DC:DC converter efficiency

RE: LabView process to measure DC:DC converter efficiency

JWx — Fri, 24 Jan 2025 13:44:52 GMT

Nice setup! I am thinking about building something like this (using GNU Octave as a controller)... I have a question - is it safe to assume that USB connectors of the hardware are isolated, or better to use USB isolated bridges (for example ADUM3160 based) when connecting them to the computer?

RE: LabView process to measure DC:DC converter efficiency

DAB — Mon, 06 Jan 2025 19:38:30 GMT

Great post Jan.

RE: LabView process to measure DC:DC converter efficiency

wolfgangfriedrich — Sun, 05 Jan 2025 23:50:23 GMT

Thanks for doing the light load tests as well. Those values are often overlooked for systems that have sleep mode and performance is worse than expected when not changing modes.

RE: LabView process to measure DC:DC converter efficiency

Jan Cumps — Sun, 05 Jan 2025 12:12:59 GMT

I redid the samples, with SIC967 in mode 4: power save, external bias provided (sample 34)

[View:/cfs-file/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-f1373e0d-b7da-46c0-81fa-99f60c681bba/measureefficiency_5F00_34.zip:640:360]

RE: LabView process to measure DC:DC converter efficiency

Jan Cumps — Sun, 05 Jan 2025 10:52:01 GMT

A low load comparison - based on the same sample set. Left data sheet, right my samples.

RE: LabView process to measure DC:DC converter efficiency

shabaz — Sun, 05 Jan 2025 03:24:07 GMT

That's a great setup there with the scanner card! And all the rest of the automated testbed.

It's amazing what a difference it makes toward getting deep measurements for a circuit. While you can go and enjoy a coffee or lunch, depending on how brave you feel : )