Programmable Electronic Load - Automating a DC Switcher Efficiency Test with LabVIEW

RE: Programmable Electronic Load - Automating a DC Switcher Efficiency Test with LabVIEW

Jan Cumps — Sat, 21 Apr 2018 14:04:30 GMT

This is how the dashboard for this test setup turned out (16x speed):

[View:https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=5774388090001:1110:699]

It's just for display while executing. The real value is the excel file that's generated and contains all measurements.

RE: Programmable Electronic Load - Automating a DC Switcher Efficiency Test with LabVIEW

Jan Cumps — Fri, 20 Apr 2018 12:53:26 GMT

I simplified the main flow by putting the big Excel log part into a separate module (LabVIEW: passing multiple signals as a Dynamic Signal to a submodule (also: log measurements to Excel)) and by putting the increment logic for Power Supply input voltage and Load Current increments in a reusable block (LabVIEW: Module to Generate Step Increments).

I've attached a spreadsheet with a full cycle of measurement (1028 test conditions) to the main post above.

RE: Programmable Electronic Load - Automating a DC Switcher Efficiency Test with LabVIEW

fmilburn — Mon, 26 Mar 2018 18:53:03 GMT

Really nice! A professional grade feature.

RE: Programmable Electronic Load - Automating a DC Switcher Efficiency Test with LabVIEW

genebren — Mon, 26 Mar 2018 15:50:31 GMT

Jan,

Great update on your electronic load project. The automated efficiency test is a definitely a great feature and a real highlight of your load. Keep up the great work!

Gene