It is useful for automotive application, such as ISO16750 and ISO7637 pulse.
LTspice and Simetrix both support.
Yes, you can put ISO16750 and ISO7637 waveforms in QSPICE without resorting to playing a PWL from a file into the simulator.
I’ve forgotten the spec’s, but this should show you the idea.
I think the meanings of the EXP parameters are somewhat non-standard. I didn’t like that TD2 was based from the start instead of the last thing that happened like in a PULSE source.
–Mike
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