A homemade LISN for precompliance conducted emission tests on DC-DC power supplies

Additional Files for Download

Performing precompliance measurements on power supplies requires using a line impedance stabilization network (LISN) for results that can be compared to limit values. While LISNs are standard in any precompliance lab, often no LISN is available for early R&D testing. If high accuracy is not your goal and you just need a simple tool for debugging, you can build your own LISN. Rohde & Schwarz oscilloscopes with powerful FFT analysis, are ideal for optimizing EMI filters or debugging unwanted emissions during development.

Design Files

Download a ZIP with Schematics, Assembly, Layout and BOM details after registration.