something we're learning (that we kind of already knew) at work is that we work a lot better when we enjoy what we're working on, and we *really* enjoy working on power supplies
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also it's nice when things go easily and you don't have to fight with ltspice to get things to converge
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or ngspice i suppose, which is a bit more of a problem because that's the open-source spice (i almost typed open-spice source)
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it seems like all power MOSFETs, SiC MOSFETs, and IGBTs, where the manufacturer provides models for them at all, have subcircuit models that use things like if statements that cause discontinuities, which cause Problems with numerical stability and convergence
LTspice, at least, has built in models for VDMOS devices (which would cover power MOSFETs and SiC MOSFETs) and IGBTs, and if they had just used those you'd get much better performing models
they just wouldn't work in PSPICE
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