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DC noconvergence in Hspice

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wenty

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With the same netlist, Hsim is easy to converge than Hspice. So, can I include the '*.ic' got from Hsim to solve the DC noconvergence problem in Hspice?
thanks
 

Yes, you can. And, you must setup a high accuracy for hsim. Actually, I sometimes do in this way for postsimulation.

Another way is to use uic to generate an IC. I think this should be the first choice.
 

You can only set .ic for few critical nets, or it will occur some convergency problem
at the middle of trancient simulation.
 

we can also use .nodeset command.

Again, iteration limit can also be set.
 

Another way may be used: change the step of the simulation to smaller.

Added after 2 minutes:

sorry for mistaking 'change the step of the simulation to smller ' for 'chang the step of the simulation to larger'
 

the dc noconvergance maybe be solutioned by set init node voltage.
 

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