Plotting Differential Measurements

[jeremy.meier]

Searched the docs but couldn’t find an answer on this. Is there any way in the simulator to plot the voltage difference between two nodes on the chart? For example if I’ve got a circuit containing a BJT transistor with nets named ‘Base’ and ‘Emitter’, I’d like to plot V(Base)-V(Emitter) to plot the Vbe of the transistor.

I’m running KiCad 6.0.0 on MacOS 12.0.1.

[holger]

Add differential signals Ngspice

Hi everybody. This is my first thread so please be patient. Right now I’m designing a single-ended to full-differential OPA filter. [imagen] But I don’t know how to measure or add the differential output from the filter in the spice simulator. I want to see the transfer function from the single-ended input to the differential output. You think you can help me? Thanks

[jeremy.meier]

Ahh that’s an interesting workaround I hadn’t considered! Thanks.