Spectre error: Zero diagonal found in Jacobian at 'net54'

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daloveme

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for designing Sigma Delta modulator,
when I simulate modulatr block as using switch of anlaoglib, this problem is generated at Spectre.
"Zero diagonal found in Jacobian at 'net54'"
I don't know this.
If you know it, please instruct to me.
 

daloveme said:
for designing Sigma Delta modulator,
when I simulate modulatr block as using switch of anlaoglib, this problem is generated at Spectre.
"Zero diagonal found in Jacobian at 'net54'"
I don't know this.
If you know it, please instruct to me.
Click to expand...


now i have the same problem, did you solve the problem?


I solved it by setting the convergence parameter "cmin" to 1f in the option
 
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