Hello, I'm trying to simulate a circuit which right now consists of only a high voltage rectifier, but gnucap is giving me strange errors and the output stops right after the first half-cycle of the AC source. Attached is primary.ckt (the circuit file), primary.out (the output data file), and gnucap.out (the stdout/stderr data from gnucap). Any help is greatly appreciated.
Thanks a lot, Chris
Gnucap 0.35 The Gnu Circuit Analysis Package Never trust any version less than 1.0 Copyright 1982-2006, Albert Davis Gnucap comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions according to the GNU General Public License. See the file "COPYING" for details. Budget DC Coil Primary Circuit Simulation # 27. initial step rejected:Cj.D1.X1.Xrect new=3.25363e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D2.X1.Xrect new=3.25363e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D3.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D4.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D5.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D6.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D7.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D8.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D9.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D10.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D11.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D12.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D13.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D14.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D15.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D16.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D17.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D18.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D19.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D20.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D21.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D22.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D23.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D24.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D25.X1.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D1.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D2.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D3.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D4.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D5.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D6.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D7.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D8.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D9.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D10.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D11.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D12.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D13.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D14.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D15.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D16.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D17.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D18.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D19.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D20.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D21.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D22.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D23.X3.Xrect new=3.25362e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D24.X3.Xrect new=3.25363e-07 old=1e-06 required=5e-07 initial step rejected:Cj.D25.X3.Xrect new=3.25363e-07 old=1e-06 required=5e-07 initial step rejected:Csmooth new=3.00258e-07 old=1e-06 required=5e-07 very backward time step convergence failure, reducing (itl4) newtime=4.100000e-03 rejectedtime=4.100000e-03 oldtime=4.100000e-03 using=4.100000e-03 tried everything, still doesn't work, giving up
Budget DC Coil Primary Circuit Simulation .MODEL D1N4007 D(IS=2.55E-9 RS=0.042 N=1.75 TT=5.76E-6 CJO=1.85E-11 VJ=0.75 M=0.333 BV=1000 IBV=9.86E-5) Xnst 1 0 2 NST15KV Rnstmeas 1 2 1GOhms Xrect 1 2 3 4 HVRECTIFIER1 Csmooth 3 4 400nF IC=0 Rsmooth 3 4 25.9MEGOhms * +HV GND -HV .SUBCKT NST15KV 4 2 5 Vtrans1 1 2 SIN(0 10607 60) Vtrans2 3 2 SIN(0 -10607 60) R1 1 4 2 R2 3 5 2 .ENDS * AC AC DC+ DC- .SUBCKT HVRECTIFIER1 1 3 5 6 X1 1 2 DiodeString25 X2 3 2 DiodeString25 X3 4 3 DiodeString25 X4 4 1 DiodeString25 R1 2 5 2 R2 4 6 2 .ENDS .SUBCKT DiodeString25 1 26 D1 1 2 D1N4007 D2 2 3 D1N4007 D3 3 4 D1N4007 D4 4 5 D1N4007 D5 5 6 D1N4007 D6 6 7 D1N4007 D7 7 8 D1N4007 D8 8 9 D1N4007 D9 9 10 D1N4007 D10 10 11 D1N4007 D11 11 12 D1N4007 D12 12 13 D1N4007 D13 13 14 D1N4007 D14 14 15 D1N4007 D15 15 16 D1N4007 D16 16 17 D1N4007 D17 17 18 D1N4007 D18 18 19 D1N4007 D19 19 20 D1N4007 D20 20 21 D1N4007 D21 21 22 D1N4007 D22 22 23 D1N4007 D23 23 24 D1N4007 D24 24 25 D1N4007 D25 25 26 D1N4007 .ENDS .options vmin=-1e8 vmax=1e8 .print tran vout(Rnstmeas) vout(Csmooth) .op .tran .0001 .05 UIC > primary.out .end
#Time vout(Rnstm vout(Csmoo 0. 0. 0. 100.E-6 786.77 719.86 200.E-6 1.5852E+3 1.5184E+3 300.E-6 2.3814E+3 2.3146E+3 400.E-6 3.1742E+3 3.1075E+3 500.E-6 3.9625E+3 3.896E+3 600.E-6 4.7452E+3 4.6788E+3 700.E-6 5.5211E+3 5.4549E+3 800.E-6 6.2892E+3 6.2233E+3 900.E-6 7.0484E+3 6.9827E+3 0.001 7.7975E+3 7.7321E+3 0.0011 8.5355E+3 8.4704E+3 0.0012 9.2615E+3 9.1967E+3 0.0013 9.9742E+3 9.9098E+3 0.0014 10.673E+3 10.609E+3 0.0015 11.356E+3 11.293E+3 0.0016 12.023E+3 11.96E+3 0.0017 12.674E+3 12.611E+3 0.0018 13.306E+3 13.244E+3 0.0019 13.919E+3 13.858E+3 0.002 14.513E+3 14.452E+3 0.0021 15.086E+3 15.025E+3 0.0022 15.637E+3 15.577E+3 0.0023 16.166E+3 16.107E+3 0.0024 16.672E+3 16.614E+3 0.0025 17.155E+3 17.097E+3 0.0026 17.613E+3 17.556E+3 0.0027 18.046E+3 17.99E+3 0.0028 18.454E+3 18.398E+3 0.0029 18.835E+3 18.78E+3 0.003 19.19E+3 19.136E+3 0.0031 19.517E+3 19.464E+3 0.0032 19.816E+3 19.764E+3 0.0033 20.088E+3 20.036E+3 0.0034 20.33E+3 20.28E+3 0.0035 20.544E+3 20.495E+3 0.0036 20.729E+3 20.681E+3 0.0037 20.884E+3 20.837E+3 0.0038 21.01E+3 20.964E+3 0.0039 21.106E+3 21.061E+3 0.004 21.171E+3 21.129E+3 0.0041 21.207E+3 21.167E+3
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