LTspace EMC simulation

One thing I like to do is to convert the DM and CM noise plots to dBuV with behavioral sources in the schematic.  That way, it's obvious what the 500000*V... actually means and it avoids having to manually edit the plot expression each time.

One thing I like to do is to convert the DM and CM noise plots to dBuV with behavioral sources in the schematic.  That way, it's obvious what the 500000*V... actually means and it avoids having to manually edit the plot expression each time.

circuit5Soln_dBuV.asc

Hi MTF_Walker, would you be able to explain why the input voltage source is pulsed, rather than keeping it at a regular constant 24VDC?

Hi WM604,

That's from the original article (see figure 7).  It provides a short turn-on delay for the source before settling to the DC level.  I'm not 100% sure, as I didn't write the original article, but it's probably there to help the simulator with convergence.

Interesting, that article I was able to follow except why the input source changes parameters like that..