Simulating Conducted EM Emissions from Power Electronics
The modeling of the conducted EM Emissions of a synchronous Buck is demonstrated how to predict the emitted spectrum. The methodology takes the layout implementation of the converter stage into account, based on a commercially available EM extraction tool. This solution benefits from a respective switch model included in the software, offering a fast representation of the switching behavior without the need of using SPICE models for the switching devices. The results indicate that this methodology enables accurate prediction of the conducted EM spectrum, showing reasonable agreement between analytical predicted and measured conducted EM spectrum on a virtual level, offering a deeper insight into the parasitic effects of the layout and can reduce the number of hardware iteration cycles.
Simon Muff’s presentation on the Test, Measurement & Simulation-Day at Bodo’s 2022 WBG Event.
He is Business Development Manager High Speed Digital Design at Keysight Technologies.