PSpice: Convergence problem-----Urgent! Help!

[power_yang]

Hi Everyone,
I have build a new project with UCC3895 and IR2110. But there are some convergence problem with this project.
Please give me some advice.
If you need the project file, please leave a email or MSN. I will send it to you.
Thank you very much.
By the way, my email is power.yang.china@gmail.com

NETLIT is below
* source TEST3
X_U1 VCC N1581276 0 N1581282 0 N1581888 N1581974 0 VCC 0 N1582449
+ IR2110 PARAMS: T1=-40 T2=25 T3=125 V1=10 V2=15 V3=20 TONT1=90N TONT2=120N
+ TONT3=170N TONV1=140N TONV2=120N TONV3=100N TOFFT1=77N TOFFT2=94N TOFFT3=130N
+ TOFFV1=115N TOFFV2=94N TOFFV3=75N TONVDD1=125N TONVDD2=120N TONVDD3=115N
+ TOFFVDD1=113N TOFFVDD2=94N TOFFVDD3=72N
C_C6 VCC 0 47u
V_V6 VCC 0
+PULSE 12 12 150u 10u
R_R5 0 N1581152 1g TC=0,0
X_R1 N1580924 N1580786 0 POT PARAMS: SET=0.5 VALUE=1K
X_R4 N1581066 0 0 POT PARAMS: SET=0.5 VALUE=200k
R_R11 0 N1580730 1ohm TC=0,0
X_R2 N1581014 0 0 POT PARAMS: SET=0.6 VALUE=100k
C_C1 N1580924 0 10u TC=0,0
X_U2 N1580770 N1580770 N1581142 N1580924 0 N1581152 N1581142 N1581066
+ N1581054 N1581014 N1580730 N1580764 N1581322 N1581316 VCC 0 N1581282 N1581276
+ N1581270 N1580786 UCCX895
X_R3 N1581054 0 0 POT PARAMS: SET=0.6 VALUE=100K
C_C2 0 N1581142 2.5n TC=0,0
C_C4 0 VCC 10u TC=0,0
C_C3 N1581270 0 4.7n TC=0,0
R_R10 N1580764 N1580730 1G TC=0,0
C_C7 0 VCC 0.1u TC=0,0
C_C8 N1581974 0 0.47u TC=0,0
D_D1 VCC N1581974 D1N4002
C_C9 0 VCC 1u TC=0,0
X_U3 VCC N1581316 0 N1581322 0 N1583066 N1583275 0 VCC 0 N1583164
+ IR2110 PARAMS: T1=-40 T2=25 T3=125 V1=10 V2=15 V3=20 TONT1=90N TONT2=120N
+ TONT3=170N TONV1=140N TONV2=120N TONV3=100N TOFFT1=77N TOFFT2=94N TOFFT3=130N
+ TOFFV1=115N TOFFV2=94N TOFFV3=75N TONVDD1=125N TONVDD2=120N TONVDD3=115N
+ TOFFVDD1=113N TOFFVDD2=94N TOFFVDD3=72N
C_C10 0 VCC 0.1u TC=0,0
C_C11 N1583275 0 0.47u TC=0,0
D_D2 VCC N1583275 D1N4002
C_C12 0 VCC 1u TC=0,0
R_R19 N1581888 S3G 20k TC=0,0
R_R20 N1582449 S2G 20k TC=0,0
R_R21 N1583066 S4G 20k TC=0,0
R_R22 N1583164 S1G 20k TC=0,0
X_TX1 0 N1636872 N1636757 0 SCHEMATIC1_TX1
R_R12 0 N1633643 0.9 TC=0,0
X_M1 N1633537 S1G 0 IRFPS40N50L
X_M3 0 S3G 0 IRFPS40N50L
X_M4 0 S4G 0 IRFPS40N50L
X_M6 N1633695 S1G 0 IRFP2907
X_M8 0 S1G 0 IRFP2907
V_V8 N1633537 0 400Vdc
X_M2 N1633537 S2G 0 IRFPS40N50L
X_M5 N1633695 S4G 0 IRFP2907
X_M7 0 S4G 0 IRFP2907
L_L1 N1633695 N1633643 17uH
C_C18 0 N1633537 1.5m TC=0,0
C_C17 0 N1633643 1m TC=0,0
R_R27 0 N1636872 0.01 TC=0,0
R_R28 N1636757 0 0.01 TC=0,0

.subckt SCHEMATIC1_TX1 1 2 3 4
K_TX1 L1_TX1 L2_TX1 1
L1_TX1 1 2 1mH
L2_TX1 3 4 10uH
.ends SCHEMATIC1_TX1

 

[keith1200rs]

I don't use Pspice so cannot run your netlist to find out the problem - TI seem to have a Pspice specific model rather than generic Spice.

You should get an error in the list file which usually points to where the problem is. Maybe if you posted that I could help.

Keith.

 

[power_yang]

ERROR -- Convergence problem in transient bias point calculation
--------------- Simulation Profile: Transient-tran ---------------
Simulation running...
Reading and checking circuit
Circuit read in and checked, no errors
Calculating bias point for Transient Analysis
Starting GMIN stepping
Starting power supply stepping
Convergence problem in transient bias point calculation

These voltages failed to converge:

V(REF) = 4.999V \ 2.658V
V(N1432849) = 5.623V \ 3.151V
V(N1432175) = 5.024V \ 2.641V
V(N1432283) = 4.960V \ 2.609V
V(N1432587) = 4.944V \ 2.601V
5 of 5 errors shown. See output file for complete list...

These supply currents failed to converge:

I(X_U1.EVref) = 311.16uA \ 80.73uA
I(X_U1.EVref2) = -42.98uA \ -22.85uA
I(X_U1.EBVDELab) = -1.375mA \ -730.78uA
I(X_U1.EBVDELcd) = -341.59uA \ -181.60uA
I(X_U7.E_MD5_Uvcc_ABM2) = 242.54uA \ -65.10uA
5 of 5 errors shown. See output file for complete list...
These devices failed to converge:
X_U1.D1
X_U1.D2
X_U1.DCAB1
X_U1.DCAB2
X_U1.DCAB4
5 of 5 errors shown. See output file for complete list...
Simulation paused

 

[srizbf]

try to change V_V6 VCC as DC 12
(or) give Vcc as 12 v dc supply.

 

[love_analog]

try ramping power supplies.

try changing your timestep

 

[atripathi]

Try turning on autoconvergance and see if that help. YOu can do this from Simulation Profile>Option>AutoConverg... Else share your schematic.

 

[alexan_e]

Check

**broken link removed**
ftp://ftp.ehu.es/cidira/dptos/depjt/sistemas de potencia/transparencias/guia sobre convergencia.pdf
http://www.intusoft.com/articles/converg.pdf


Alex