害怕看到的一张图片

只看该作者 · 2010-4-2 11:26

本帖最后由 xc_2010 于 2010-4-2 15:00 编辑

这几天在学习pspice，在运行时老弹出这个图片，而得不到仿真曲线。请问该如何解决？

2万 · 2010-4-2 12:03

一般情况下更改第二、第三和第五项

得看你的输出信息看看到底是哪个问题然后针对修改 :)

只看该作者 · 2010-4-2 13:16

的确是挺恶心人的，改最后一项也有很大用处哦增加迭代的次数。

只看该作者 · 2010-4-2 13:56

一般情况下更改第二、第三和第五项

得看你的输出信息看看到底是哪个问题然后针对修改 :)
Siderlee 发表于 2010-4-2 12:03

/*********以下位错误信息*******************/

  ERROR -- Convergence problem in bias point calculation

  Last node voltages tried were:
NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE

(N00385) 10.1910 (N00409) 10.1910 (N00443) 10.1910 (N00567) 10.1910
(N00595) 10.1910 (N00882) 10.1910 (N01147) 10.1910 (N01311) 7.6153
(N01793) 0.0000 (X_U1A.6)  -33.6070                (X_U1A.7) 10.0810
(X_U1A.8) 10.0810                (X_U1A.9) 0.0000
(X_U1A.10) 8.0458                (X_U1A.11) 9.8166
(X_U1A.12) 8.0673                (X_U1A.53) 8.6961
(X_U1A.54) 11.6850                (X_U1A.90) -.4948
(X_U1A.91) 16.9840                (X_U1A.92)  -16.9840
(X_U1A.99) 6.9233

  These supply currents failed to converge:
I(V_V3)                = 10.00GA  \ 10.00GA
I(V_V2)                = 10.00GA  \ 10.00GA
I(X_U1A.VC)             = -10.00GA  \ -10.00GA
I(X_U1A.VE)             = -10.00GA  \ -10.00GA
Try running with .OPTION STEPGMIN

/***************************************/

根据错误信息如何修改？请指点指点，拜托了！

只看该作者 · 2010-4-2 14:41

本帖最后由 xc_2010 于 2010-4-2 14:43 编辑

错误信息过长，分两次发：

/***************************************************/
ERROR -- Convergence problem in bias point calculation

  Last node voltages tried were:

NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE

(N00385) 9.4222 (N00409) 9.4222 (N00443) 9.4222 (N00567) 9.4222

(N00595) 9.4222 (N00882) 9.4222 (N01147) 9.4222 (N01311) 7.0373

(N01793) 0.0000 (X_U1A.6)  -27.7320                (X_U1A.7) 11.9730

(X_U1A.8) 11.9730                (X_U1A.9) 0.0000

(X_U1A.10) 7.4666                (X_U1A.11) 9.0481

(X_U1A.12) 7.4869                (X_U1A.53) 8.0403

(X_U1A.54) 10.8040                (X_U1A.90) 10.6830

(X_U1A.91) 15.7040                (X_U1A.92)  -15.7040

(X_U1A.99) 5.9185

  These supply currents failed to converge:

I(X_U1A.VLN)             = -17.40pA  \ -2.849pA

  These devices failed to converge:
X_U1A.FB

Try running with .OPTION STEPGMIN

**** Interrupt ****
**** Param: RELTOL = 0.001
**** Param: ABSTOL = 1e-012
**** Param: VNTOL = 1e-006
**** Param: GMIN = 1e-012
**** Param: TSTOP = 1e-009
**** Param: TMAX = 0
**** Param: ITL1 = 150
**** Param: ITL2 = 20
**** Param: ITL4 = 10

**** Published Runtime Parameters *****************************

                                    ABSTOL =    1.0000E-12
                                    C_C2.ic =    0.0000E+00
                                 C_C2.value =    1.0000E-05
                                    C_C3.ic =    0.0000E+00
                                 C_C3.value =    1.5000E-08
                                    C_C4.ic =    0.0000E+00
                                 C_C4.value =    2.2000E-08
                                    C_C5.ic =    0.0000E+00
                                 C_C5.value =    1.0000E-10
                                       GMIN =    1.0000E-12
                                       ITL1 =    1.5000E+02
                                       ITL2 =    2.0000E+01
                                       ITL4 =    1.0000E+01
                                 R_R1.tc1 =    0.0000E+00
                                 R_R1.tc2 =    0.0000E+00
                                 R_R1.value =    2.2000E+04
                                 R_R2.tc1 =    0.0000E+00
                                 R_R2.tc2 =    0.0000E+00
                                 R_R2.value =    2.2000E+04
                                 R_R3.tc1 =    0.0000E+00
                                 R_R3.tc2 =    0.0000E+00
                                 R_R3.value =    2.2000E+03
                                 R_R4.tc1 =    0.0000E+00
                                 R_R4.tc2 =    0.0000E+00
                                 R_R4.value =    4.7000E+03
                                 R_R5.tc1 =    0.0000E+00
                                 R_R5.tc2 =    0.0000E+00
                                 R_R5.value =    1.0000E+05
                                 R_R6.tc1 =    0.0000E+00
                                 R_R6.tc2 =    0.0000E+00
                                 R_R6.value =    1.0000E+04
                                 R_R7.tc1 =    0.0000E+00
                                 R_R7.tc2 =    0.0000E+00
                                 R_R7.value =    2.2000E+03
                                    RELTOL =    1.0000E-03
                                    RUNFOR =    0.0000E+00
                                       TMAX =    0.0000E+00
                                    TSTOP =    1.0000E-09
                                    V_V2.ac =    0.0000E+00
                              V_V2.acphase =    0.0000E+00
                                    V_V2.dc =    -1.5000E+01
                                    V_V3.ac =    0.0000E+00
                              V_V3.acphase =    0.0000E+00
                                    V_V3.dc =    1.5000E+01
                                    V_V4.ac =    0.0000E+00
                              V_V4.acphase =    0.0000E+00
                                    V_V4.dc =    0.0000E+00
                                    VNTOL =    1.0000E-06
                              X_U1A.C1.ic =    0.0000E+00
                           X_U1A.C1.value =    3.4980E-12
                              X_U1A.C2.ic =    0.0000E+00
                           X_U1A.C2.value =    1.5000E-11
                              X_U1A.DC.area =    1.0000E+00
                              X_U1A.DC.ic =    0.0000E+00
                              X_U1A.DE.area =    1.0000E+00
                              X_U1A.DE.ic =    0.0000E+00
                           X_U1A.DLN.area =    1.0000E+00
                              X_U1A.DLN.ic =    0.0000E+00
                           X_U1A.DLP.area =    1.0000E+00
                              X_U1A.DLP.ic =    0.0000E+00
                              X_U1A.DP.area =    1.0000E+00
                              X_U1A.DP.ic =    0.0000E+00
                              X_U1A.GA.gain =    2.8280E-04
                           X_U1A.GCM.gain =    8.9420E-09
                           X_U1A.HLIM.gain =    1.0000E+03
                              X_U1A.ISS.ac =    0.0000E+00
                        X_U1A.ISS.acphase =    0.0000E+00
                              X_U1A.ISS.dc =    1.9500E-04
                              X_U1A.R2.tc1 =    0.0000E+00
                              X_U1A.R2.tc2 =    0.0000E+00
                           X_U1A.R2.value =    1.0000E+05
                              X_U1A.RD1.tc1 =    0.0000E+00
                              X_U1A.RD1.tc2 =    0.0000E+00
                           X_U1A.RD1.value =    3.5360E+03
                              X_U1A.RD2.tc1 =    0.0000E+00
                              X_U1A.RD2.tc2 =    0.0000E+00
                           X_U1A.RD2.value =    3.5360E+03
                              X_U1A.RO1.tc1 =    0.0000E+00
                              X_U1A.RO1.tc2 =    0.0000E+00
                           X_U1A.RO1.value =    1.5000E+02
                              X_U1A.RO2.tc1 =    0.0000E+00
                              X_U1A.RO2.tc2 =    0.0000E+00
                           X_U1A.RO2.value =    1.5000E+02
                              X_U1A.RP.tc1 =    0.0000E+00
                              X_U1A.RP.tc2 =    0.0000E+00
                           X_U1A.RP.value =    2.1430E+03
                              X_U1A.RSS.tc1 =    0.0000E+00
                              X_U1A.RSS.tc2 =    0.0000E+00
                           X_U1A.RSS.value =    1.0260E+06
                              X_U1A.VB.ac =    0.0000E+00
                           X_U1A.VB.acphase =    0.0000E+00

只看该作者 · 2010-4-2 14:42

本帖最后由 xc_2010 于 2010-4-2 14:45 编辑

X_U1A.VB.dc =    0.0000E+00
                              X_U1A.VC.ac =    0.0000E+00
                           X_U1A.VC.acphase =    0.0000E+00
                              X_U1A.VC.dc =    2.2000E+00
                              X_U1A.VE.ac =    0.0000E+00
                           X_U1A.VE.acphase =    0.0000E+00
                              X_U1A.VE.dc =    2.2000E+00
                              X_U1A.VLIM.ac =    0.0000E+00
                        X_U1A.VLIM.acphase =    0.0000E+00
                              X_U1A.VLIM.dc =    0.0000E+00
                              X_U1A.VLN.ac =    0.0000E+00
                        X_U1A.VLN.acphase =    0.0000E+00
                              X_U1A.VLN.dc =    2.5000E+01
                              X_U1A.VLP.ac =    0.0000E+00
                        X_U1A.VLP.acphase =    0.0000E+00
                              X_U1A.VLP.dc =    2.5000E+01



ERROR -- Convergence problem in bias point calculation

  Last node voltages tried were:

NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE    NODE VOLTAGE

(N00385) 9.4222 (N00409) 9.4222 (N00443) 9.4222 (N00567) 9.4222

(N00595) 9.4222 (N00882) 9.4222 (N01147) 9.4222 (N01311) 7.0373

(N01793) 0.0000 (X_U1A.6)  -27.7320                (X_U1A.7) 11.9730

(X_U1A.8) 11.9730                (X_U1A.9) 0.0000

(X_U1A.10) 7.4666                (X_U1A.11) 9.0481

(X_U1A.12) 7.4869                (X_U1A.53) 8.0403

(X_U1A.54) 10.8040                (X_U1A.90) 10.6830

(X_U1A.91) 15.7040                (X_U1A.92)  -15.7040

(X_U1A.99) 5.9185

  These supply currents failed to converge:

I(X_U1A.VLN)             = -17.40pA  \ -2.849pA

  These devices failed to converge:
X_U1A.FB

Try running with .OPTION STEPGMIN

**** Interrupt ****

只看该作者 · 2010-4-3 01:09

一个向南，一个向北。那向东。。。。

2万 · 2010-4-3 09:25

:)电流已经很小了没法改

图

只看该作者 · 2010-4-3 21:12

:)电流已经很小了没法改

图
Siderlee 发表于 2010-4-3 09:25

你是说无论我怎么改参数，都不可能得到波形？

只看该作者 · 2013-7-17 11:03

问题解决了吗，解决了告诉下怎么解决的呀，让大家都学习下。

2万 · 2013-7-17 11:15

线性电路还好，像开关电源等经常遇见这种头疼事。
收敛问题，少部分通过修改精度和迭代次数可以解决，比如把迭代极限ITL4增加到100甚至更多。
多数问题必须通过修改器件模型，让它别太理想了，比如增加二极管模型中的n,或在二极管上并联RC缓冲网络等。

害怕看到的一张图片

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