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Sth. about convergence of diode on hspice

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joyes

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Hi, everybody!

My error is :

**error** internal timestep too small in transient analysis
...
hspice diagnostic for nonconvergent nodes and elements


node subcircuit old new error
name definition voltage voltage toleran
(x_r2.d3:rs) rnwsti_ckt -97.253u -175.479u 1.559



It happened after including a n-well resistor in the original circuit.

I think that the reason is the diode of the n-well resistor model subcircuit.

But I do not know how to solve this problem. So, I need some help here.

Pls! Thanks very much!
 

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