User`s guide

Dia

nostics B

-15

Dia

nostics

If PSpice encounters a convergence problem it inserts into the

output file a message that looks like the following.

The message always includes the banner (

ERROR --

convergence problem ...) and the trailer (Last node voltages

tried were ...). It cannot include all three of the middle blocks.

ERROR -- Convergence problem in transient analysis at Time = 7.920E-03

Time step = 47.69E-15, minimum allowable step size = 300.0E-15

These voltages failed to converge:

V(x2.23) = 1230.23 / -68.4137

V(x2.25) = -1211.94 / 86.6888

These supply currents failed to converge:

I(X2.L1) = -36.6259 / 2.25682

I(X2.L2) = -36.5838 / 2.29898

These devices failed to converge:

X2.DCR3 X2.DCR4 x2.ktr X2.Q1 X2.Q2

Last node voltages tried were:

NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE NODE VOLTAGE

( 1) 25.2000 ( 3) 4.0000 ( 4) 0.0000 ( 6) 25.2030

(x2.23) 1230.2000 (X2.24) 9.1441 (x2.25) -1211.9000 (X2.26) 256.9700

(X2.28) -206.6100 (X2.29) 75.4870 (X2.30) -25.0780 (X2.31) 26.2810

(X3.34) 1.771E-06 (X3.35) 1.0881 (X3.36) .4279 (X2.XU1.6) 1.2636