Schematic Creation and Simulation - English

Questions posted on ST Forums:

• Frequency Response Plot of Filters

  How to plot frequency response of filters using eSim. when I do Transient analysis I am getting correct output but when I do AC analysis, I am getting zero (both input and output)

  00-01M 0-10S KAVYAAP
  
  
  Answer last updated on: June 30, 2025, 8:48 a.m.

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• ngspice terminal

  Not open ngspice terminal , only python plot open while simulation.

  04-05M 40-50S milanbhavsar1990@gmail.com
  
  
  Answer last updated on: June 30, 2025, 8:40 a.m.

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• Video tutorial is outdated – Features missing in latest version of eSim

  Ma'am, the video provided is based on an older version of eSim, but the software we are currently using is the latest version. Because of this, we are unable to find certain options shown in the video—such as the "pwr_flag" component—in the new version of the software. I was trying to create the circuit by following the video, but it is difficult to locate such components. Kindly provide an updated tutorial or guidance based on the latest version of the software.

  08-09M 20-30S avinashmaurya1677@gmail.com
  
  
  Answer last updated on: June 30, 2025, 8:37 a.m.

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• python window error

  After converting kicad to ngspice and putting the respective values, the conversion takes place successfully. But after simulation, the error appears, 'unable to read analysis file' and 'Error while opening python plotting Editor. Please look at console for more details'. the following appears in the console:[INFO]: Current Project is C:\FOSSEE\projects\RC[INFO]: Ngspice simulation is called : C:\FOSSEE\projects\RC[INFO]: PythonPlotting is called : C:\FOSSEE\projects\RC[ERROR]: Exception Message :list index out of range[ERROR]: Exception Message : integer division or modulo by zeroCan you please explain what should be the solution to the above problem. I have rechecked all the values, but can't get it right. 

  11-12M 40-50S astha95
  
  
  Answer last updated on: June 9, 2025, 4:08 p.m.

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• Error in simulation

  Sir,I am getting this error and simulation is not coming.******** ngspice-31 : Circuit level simulation program** The U. C. Berkeley CAD Group** Copyright 1985-1994, Regents of the University of California.** Please get your ngspice manual from http://ngspice.sourceforge.net/docs.html** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html** Creation Date: Oct  6 2019   15:17:58******Circuit: * d:\esimprojects\rc\rc.cirDoing analysis at TEMP = 27.000000 and TNOM = 27.000000Warning: v1: no DC value, transient time 0 value usedWarning: singular matrix:  check nodes out and outNote: Starting dynamic gmin steppingTrying gmin =   1.0000E-03 Note: One successful gmin stepTrying gmin =   1.0000E-04 Note: One successful gmin stepTrying gmin =   1.0000E-05 Note: One successful gmin stepTrying gmin =   1.0000E-06 Note: One successful gmin stepTrying gmin =   1.0000E-07 Note: One successful gmin stepTrying gmin =   1.0000E-08 Note: One successful gmin stepTrying gmin =   1.0000E-09 Note: One successful gmin stepTrying gmin =   1.0000E-10 Note: One successful gmin stepTrying gmin =   1.0000E-11 Note: One successful gmin stepTrying gmin =   1.0000E-12 Note: One successful gmin stepTrying gmin =   1.0000E-12 Note: One successful gmin stepWarning: singular matrix:  check nodes out and outWarning: Dynamic gmin stepping failedNote: Starting source steppingSupplies reduced to   0.0000% Warning: singular matrix:  check nodes out and outTrying gmin =   1.0000E-02 Note: One successful gmin stepTrying gmin =   1.0000E-03 Note: One successful gmin stepTrying gmin =   1.0000E-04 Note: One successful gmin stepTrying gmin =   1.0000E-05 Note: One successful gmin stepTrying gmin =   1.0000E-06 Note: One successful gmin stepTrying gmin =   1.0000E-07 Note: One successful gmin stepTrying gmin =   1.0000E-08 Note: One successful gmin stepTrying gmin =   1.0000E-09 Note: One successful gmin stepTrying gmin =   1.0000E-10 Note: One successful gmin stepTrying gmin =   1.0000E-11 Note: One successful gmin stepTrying gmin =   1.0000E-12 Note: One successful gmin stepNote: One successful source stepSupplies reduced to   0.1000% Warning: singular matrix:  check nodes out and outSupplies reduced to   0.0000% Warning: singular matrix:  check nodes out and outWarning: source stepping failedTransient solution failed -Last Node Voltages------------------Node                                   Last Voltage        Previous Iter----                                   ------------        -------------in                                                0                    0out                                               0                    0net-_c1-pad2_                                     0                    0v1#branch                                         0                    0doAnalyses: iteration limit reachedrun simulation(s) abortedError(parse.c--checkvalid): in: no such vector.Error(parse.c--checkvalid): v1#branch: no such vector.Error: no such vector v(out)Error: no such vector v(in)ngspice 1 ->  

  11-12M 40-50S KANISH_R
  
  
  Answer last updated on: June 9, 2025, 4:07 p.m.

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• Plotting together

  Sir is their any option available in eSIM for plotting all sub plots into same plot single window?

  11-12M 40-50S kiran.benny2019@vitstudent.ac.in
  
  
  Answer last updated on: June 9, 2025, 4:05 p.m.

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• Source Stepping Failed and Transient solution failed (Error in terminal)

  eSim Started......Project Selected : None[INFO]: Workspace : /home/kotesh/eSim-Workspace[INFO]: New project created : RC[INFO]: Current project is : /home/kotesh/eSim-Workspace/RC[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/RC[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/RC[INFO]: The current project is /home/kotesh/eSim-Workspace/RC[INFO]: Ngspice simulation is called : /home/kotesh/eSim-Workspace/RC[INFO]: PythonPlotting is called : /home/kotesh/eSim-Workspace/RC[INFO]: New project created : CCAmplifier[INFO]: Current project is : /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: The current project is /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Ngspice simulation is called : /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: PythonPlotting is called : /home/kotesh/eSim-Workspace/CCAmplifier[ERROR]: Exception Message :list index out of range[ERROR]: Exception Message : integer division or modulo by zero[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: Ngspice simulation is called : /home/kotesh/eSim-Workspace/CCAmplifier[INFO]: PythonPlotting is called : /home/kotesh/eSim-Workspace/CCAmplifier[ERROR]: Exception Message :list index out of range[ERROR]: Exception Message : integer division or modulo by zero

  11-12M 40-50S Kotesh100
  
  
  Answer last updated on: June 9, 2025, 4:03 p.m.

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• python plot window erro

  error while opening the python plot editor

  11-12M 50-60S jani
  
  
  Answer last updated on: June 9, 2025, 4 p.m.

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• Error in python plotting

   'module' object has no attribute 'popall'I am getting this error during plotting

  12-13M 0-10S Majharoddin
  
  
  Answer last updated on: June 9, 2025, 4 p.m.

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• How to save the working editor

  Hello Mam,I'm facing difficulties while saving the current project and opening the new project on editor window..

  12-13M 0-10S priti.rajput21
  
  
  Answer last updated on: June 9, 2025, 3:59 p.m.

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• KicadToNgspice-1 source details

  Dear Sir/Madam,when I tried doing the same as shown in the video iam not getting the source details options to enter the details so not able to perform the simulation, kindly help me in this regardThank you

  11-12M 0-10S PrathibaReddy
  
  
  Answer last updated on: June 9, 2025, 3:57 p.m.

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• bash: ngspice: command not found

  Unable to simulate the circuit due to python error[INFO]: Workspace : /home/kotesh/eSim-Workspace[INFO]: The current project is /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: The current project is /home/kotesh/eSim-Workspace/Bistable_Multivibrator/Bistable_Multivibrator.proj[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Kicad Schematic is called for project /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Kicad to Ngspice Conversion is called[INFO]: Current Project is /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: Ngspice simulation is called : /home/kotesh/eSim-Workspace/Bistable_Multivibrator[INFO]: PythonPlotting is called : /home/kotesh/eSim-Workspace/Bistable_Multivibrator[ERROR]: Exception Message :[Errno 2] No such file or directory: '/home/kotesh/eSim-Workspace/Bistable_Multivibrator/plot_data_i.txt'[ERROR]: Exception Message :local variable 'alli' referenced before assignment[ERROR]: Exception Message : [Errno 2] No such file or directory: '/home/kotesh/eSim-Workspace/Bistable_Multivibrator/plot_data_v.txt'

  11-12M 40-50S Kotesh100
  
  
  Answer last updated on: June 9, 2025, 3:56 p.m.

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• sir after succesful completion of conversion from kilcad to ngspice i am getting a error of python ploting

  sir after convertion to ngspice i am getting an error of python plotting plz respond quickly.

  11-12M 40-50S sumanthvallapudas
  
  
  Answer last updated on: June 9, 2025, 3:55 p.m.

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• Getting error when simulating

  ******** ngspice-26 : Circuit level simulation program** The U. C. Berkeley CAD Group** Copyright 1985-1994, Regents of the University of California.** Please get your ngspice manual from http://ngspice.sourceforge.net/docs.html** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html** Creation Date: Jan 23 2014   21:34:16******Circuit: * c:\\users\\elcot\\esim-workspace\\fossee\\fossee.cirError on line 14 : d1 0 net-_d1-pad2_ q2n2907a  incorrect model typeError on line 15 : 32mhz1 net-_32mhz1-pad1_ net-_32mhz1-pad2_ crystal   unknown device type - error Doing analysis at TEMP = 27.000000 and TNOM = 27.000000Initial Transient Solution--------------------------Node                                   Voltage----                                   -------vcc                               6.36538e-015net-_32mhz1-pad2_                 6.36538e-015net-_q1-pad2_                     6.36538e-015net-_c3-pad1_                    -2.91033e-033net-_32mhz1-pad1_                 6.36538e-015net-_d1-pad2_                     6.36538e-015No. of Data Rows : 59Error(parse.c--checkvalid): alli: no such vector.ngspice 1 -> 

  09-10M 0-10S Marmitechap
  
  
  Answer last updated on: June 9, 2025, 3:50 p.m.

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• unable to find AC source in the add componats library

  Sir,I am unable to find the Ac source in the library of add componants. Moreover the total number of componantsthge video shown in the video shown is 4132 but it is showing only 2509. Please help me to add the componats. Please tell the solution as soon as possible.Thanking You Bharavi Sharma

  03-04M 40-50S bharavi1729
  
  
  Answer last updated on: June 9, 2025, 3:40 p.m.

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• Project File Name

  I type RC as project name but it says The project name should not contain space between them

  01-02M 50-60S sanjay.bhandari@jietjodhpur.ac.in
  
  
  Answer last updated on: June 9, 2025, 3:19 p.m.

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• connecting wires issue

  Dear Sir/ MadamI am not able to connect the components using place wire tool

  02-03M 10-20S manjiri3980
  
  
  Answer last updated on: June 9, 2025, 3:12 p.m.

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• Spoken Tutorials

  Where are those spoken tutorials available?

  02-03M 10-20S saibal
  
  
  Answer last updated on: June 9, 2025, 3:10 p.m.

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• when typing new project name it says "name must not contain any space"

  when typing new project name it says "name must not contain any space"

  02-03M 10-20S rupeshdubey7
  
  
  Answer last updated on: June 9, 2025, 3:07 p.m.

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• Kicad Schematic does not opens (executes) when invoked

  Hello Am using OS windows 7 (32-bit).  Installation thru and eSIM starts.  However after create project and clicking on the Open Schematic button the python command window displays an error after scrolling some more text ! Windows Error: [Error 2] The system cannot find the file specifiedThis has been repeated in-spite numerous restarts.Am unable to add the error pic dialog in this interface here !!Thanks and regards

  02-03M 0-10S prasadjoshee
  
  
  Answer last updated on: June 9, 2025, 2:44 p.m.

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• the out put is same value

  all resister values giving same number of peaks?

  02-03M 0-10S kyikyikhaing
  
  
  Answer last updated on: June 9, 2025, 2:42 p.m.

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• Not able to connect wire to the component terminal

  As component is between the two dot of grid of schematic, I am not able to connect wire to the component terminal 

  01-02M 0-10S BUNTYJATT
  
  
  Answer last updated on: June 9, 2025, 2:38 p.m.

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• unable to fine the PWR_Flag & convert netlist icon

  I have installed the latest version of eSim software in windows 11. Now, i have an issue with unable to fine the PWR_FLAG in KiCad and also 'convert to netlist icon' also missing. where i can get this two things.

  08-09M 40-50S Arun12072004
  
  
  Answer last updated on: March 12, 2024, 10:14 p.m.

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• problem on 3-BIT ADC circuit

  Having an error on simulating 3-bit ADC. Pls, give me a simulation.* c:\users\abhishek\esim-workspace\3_bit_adc\3_bit_adc.cir.include 8by3_priority_encoder.sub.include buffer_circuit.sub.include comparator_circuit.subx16 a0 net-_x10-pad2_ gnd out0 buffer_circuitx1 lvl7 vin gnd lvl7 gnd a7 comparator_circuitx2 lvl6 vin gnd lvl6 gnd a6 comparator_circuitx8 lvl0 vin gnd lvl0 gnd a0 comparator_circuitx7 lvl1 vin gnd lvl1 gnd a1 comparator_circuitx3 lvl5 vin gnd lvl5 gnd a5 comparator_circuitx6 lvl2 vin gnd lvl2 gnd a2 comparator_circuitx5 lvl3 vin gnd lvl3 gnd a3 comparator_circuitx4 lvl4 vin gnd lvl4 gnd a4 comparator_circuitx15 a1 net-_x10-pad2_ gnd out1 buffer_circuitx14 a2 net-_x10-pad2_ gnd out2 buffer_circuitx11 a5 net-_x10-pad2_ gnd out5 buffer_circuitx12 a4 net-_x10-pad2_ gnd out4 buffer_circuitx13 a3 net-_x10-pad2_ gnd out3 buffer_circuitx9 a7 lvl7 gnd out7 buffer_circuitx10 a6 net-_x10-pad2_ gnd out6 buffer_circuitx17 out7 out6 out5 out4 out3 out2 out1 out0 adc2 adc1 adc0 8by3_priority_encoderv1 lvl7 gnd  dc 9v2  vin gnd sine(0 5 50 0 0)r1  lvl7 lvl6 100r2  lvl6 lvl5 100r3  lvl5 lvl4 100r4  lvl4 lvl3 100r5  lvl3 lvl2 100r6  lvl2 lvl1 100r7  lvl1 lvl0 100r8  lvl0 gnd 100* u1  a7 plot_v1* u2  a6 plot_v1* u3  a5 plot_v1* u4  a4 plot_v1* u5  a3 plot_v1* u6  a2 plot_v1* u7  a1 plot_v1* u8  a0 plot_v1* u10  out7 plot_v1* u11  out6 plot_v1* u16  out5 plot_v1* u9  out4 plot_v1* u12  out3 plot_v1* u13  out2 plot_v1* u14  out1 plot_v1* u15  out0 plot_v1* u17  adc2 plot_v1* u18  adc1 plot_v1* u19  adc0 plot_v1.tran 5e-03 30e-03 0e-00* Control Statements .controlrunprint allv > plot_data_v.txtprint alli > plot_data_i.txtplot v(a7)plot v(a6)plot v(a5)plot v(a4)plot v(a3)plot v(a2)plot v(a1)plot v(a0)plot v(out7)plot v(out6)plot v(out5)plot v(out4)plot v(out3)plot v(out2)plot v(out1)plot v(out0)plot v(adc2)plot v(adc1)plot v(adc0).endc.end

  11-12M 10-20S Agent_47
  
  
  Answer last updated on: May 11, 2023, 11:10 p.m.

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• kicad file conversion

  while converting kicad to Ngspice it is showing that the project does not contain any kicad file for conversion . so, what can I do?

  09-10M 50-60S priya___123
  
  
  Answer last updated on: June 2, 2022, 2:07 p.m.

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• Regarding Project Name

  When we are creating a new project, it is showing that no spaces should be provided even though we do not provide them? How to rectify it?

  01-02M 40-50S sirivemulapalli
  
  
  Answer last updated on: March 30, 2022, 2:30 p.m.

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• Simulating the cmos analog multiplier using esim and it's showing error in ngspice

  while simulating this circuit it's showing error unable to read analysis file and another dialog box is also appearing saying Error while opening python plotting Editor. Please look at console for more details.here, is the attached netlist of the given circuit :---* c:\users\vansh\esim-workspace\multiplier\multiplier.cir.include PMOS-180nm.libm1 out1 net-_m1-pad2_ ? net-_m1-pad2_ CMOSP W=2.50u L=0.25u M=1m2 out2 net-_m1-pad2_ net-_m2-pad3_ net-_m2-pad3_ CMOSP W=2.50u L=0.25u M=1m6 net-_m2-pad3_ net-_m6-pad2_ gnd gnd CMOSP W=2.50u L=0.25u M=1m5 net-_m1-pad2_ net-_m5-pad2_ gnd gnd CMOSP W=2.50u L=0.25u M=1m8 net-_m4-pad3_ net-_m5-pad2_ gnd gnd CMOSP W=2.50u L=0.25u M=1m7 net-_m3-pad3_ net-_m6-pad2_ gnd gnd CMOSP W=2.50u L=0.25u M=1m3 out1 net-_m3-pad2_ net-_m3-pad3_ net-_m3-pad3_ CMOSP W=2.50u L=0.25u M=1m4 out2 net-_m3-pad2_ net-_m4-pad3_ net-_m4-pad3_ CMOSP W=2.50u L=0.25u M=1r2  net-_r1-pad1_ out2 70kr1  net-_r1-pad1_ out1 70kinput2  net-_m3-pad2_ gnd sine(0 5m 200 0 0)input1  net-_m1-pad2_ gnd sine(0 -5m 200 0 0)input4  net-_m6-pad2_ gnd sine(0 5m 100 0 0)input3  net-_m5-pad2_ gnd sine(0 -5m 100 0 0)* u2  out2 plot_v1* u1  out1 plot_v1vdd1  net-_r1-pad1_ gnd 1.2.tran 5e-03 25e-03 0e-03* Control Statements .controlrunprint allv > plot_data_v.txtprint alli > plot_data_i.txtplot v(out2)plot v(out1).endc.endcan anyone please help me to solve this problem as soon as possible? As I am unable to find the error?

  13-14M 0-10S tan_vanshika
  
  
  Answer last updated on: Feb. 16, 2022, 3:49 p.m.

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• error when trying to create voltage divider circuit simulation

  I am getting the error in kidcad , and after giving trasients, seconds etc.... i converted it and couldn't see anything in the source details tab . And even after giving simuate am getting a error saying that, "Error while opening python plotting Editor. Please look at console for more details" and also NgSpice Fatal Error. Am including my command prompt windows text,Kicad to Ngspice netlist converter==================================Given Kicad Schematic Netlist Info : ['* C:\\Users\\Dell\\eSim-Workspace\\voltagedivider\\voltagedivider.cir', '', '* EESchema Netlist Version 1.1 (Spice format) creation date: 10/19/2021 3:14:43 PM', '', '* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N', '* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0', '', '* Sheet Name: /', 'R1  IN Net-_R1-Pad2_ 20k\t\t', 'R2  Net-_R1-Pad2_ Net-_BT1-Pad2_ 30k\t\t', 'BT1  IN Net-_BT1-Pad2_ 100\t\t', '', '.end']* C:\Users\Dell\eSim-Workspace\voltagedivider\voltagedivider.cir* EESchema Netlist Version 1.1 (Spice format) creation date: 10/19/2021 3:14:43 PM* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0* Sheet Name: /R1  IN Net-_R1-Pad2_ 20kR2  Net-_R1-Pad2_ Net-_BT1-Pad2_ 30kBT1  IN Net-_BT1-Pad2_ 100.endSchematic Info after processing Kicad Netlist:  ['* eeschema netlist version 1.1 (spice format) creation date: 10/19/2021 3:14:43 pm', '* to exclude a component from the spice netlist add [spice_netlist_enabled] user field set to: n', '* to reorder the component spice node sequence add [spice_node_sequence] user field and define sequence: 2,1,0', '* sheet name: /', 'r1  in net-_r1-pad2_ 20k', 'r2  net-_r1-pad2_ net-_bt1-pad2_ 30k', 'bt1  in net-_bt1-pad2_ 100', '.end']OPTIONINFO in the Netlist ['.end']Reading schematic info for source detailsSource List :  []Reading Schematic info for ModelModel available in the Schematic : []QLayout: Attempting to add QLayout "" to MainWindow "", which already has a layoutAC Analysis XML Parse ErrorDC Analysis XML Parse ErrorAnalysis file is presentContent of Analysis file : .tran 5e-03 10e-03 0e-03No source is present in your circuitReading Device model details from SchematicArgument to ngspice command :  C:\Users\Dell\eSim-Workspace\voltagedivider\voltagedivider.cir.outComplete Project Path :  C:\Users\Dell\eSim-Workspace\voltagedividerProject Name :  voltagedividerException Message :  [Errno 2] No such file or directory: 'C:\\Users\\Dell\\eSim-Workspace\\voltagedivider\\plot_data_i.txt'Exception Message :  local variable 'alli' referenced before assignmentException Message: [Errno 2] No such file or directory: 'C:\\Users\\Dell\\eSim-Workspace\\voltagedivider\\plot_data_v.txt'

  13-14M 20-30S Swarna10
  
  
  Answer last updated on: Oct. 20, 2021, 12:17 p.m.

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• unable to read analysis file

  after converting from kicad to ngspice it shows unable to read analysis file.i have checked all the values in the circuit and source and transient details.

  11-12M 30-40S kalyanicc
  
  
  Answer last updated on: June 15, 2021, 8:39 p.m.

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• error type 5

  when giving positive and negative supply to opamp it shows: conflict problem between pins.severity:error  pin 2(power output) of component v1 is connected to pin1(power output) of component v2.How to resolve this?

  16-17M 40-50S kalyanicc
  
  
  Answer last updated on: June 15, 2021, 8:37 p.m.

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• Electrical rule check of schematic

  I have created schematic of practice problem1 of 3 days eSim workshop. I had copied 3 transistors from component library, one of which I deleted. But while doing electrical rule check, I am getting error saying " pin not connected for Q3 " whereas there are only two transistors. Shall I proceed ignoring the error?

  07-08M 40-50S vijayc117
  
  
  Answer last updated on: Feb. 12, 2021, 10:05 a.m.

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• phyton window not opening

  After simulation i am getting the plots but my Phyton window is not there

  11-12M 50-60S sonia.behra@thakureducation.org
  
  
  Answer last updated on: Feb. 12, 2021, 9:54 a.m.

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• Unable to read analysis File

  Can you check this

  01-02M 10-20S lathashenoy@nitte.edu.in
  
  
  Answer last updated on: Feb. 11, 2021, 3:59 p.m.

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• Error type 2 and 8

  After connecting the power flag still i am getting error  which is pin not connected and no connect symbol found on this pin

  08-09M 0-10S sonia.behra@thakureducation.org
  
  
  Answer last updated on: Feb. 11, 2021, 3:37 p.m.

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• source details

  when I tried doing the same as shown in the video 1. I am not getting the source details options to enter the details so not able to perform the simulation.Thank you

  11-12M 0-10S raosriharsha08@gmail.com
  
  
  Answer last updated on: Feb. 11, 2021, 3:22 p.m.

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• Symbols not displayed

  I am not getting any symbols under eSim_devices library.

  02-03M 40-50S Divyashree.K
  
  
  Answer last updated on: Feb. 11, 2021, 3:21 p.m.

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• 7805 FW rectifier waveform

  The waveform of the input signal(sinewave) is not centered around 0-dc value in the ngspice plots as well as the python plot (screenshot attached https://ibb.co/rd1jZdR ). How can I simulate the circuit for pure AC i.e. input centered around 0-dc value? These are transient analysis plots just FYI. 

  13-14M 10-20S Swanicorn
  
  
  Answer last updated on: Feb. 11, 2021, 2:54 p.m.

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• esim terminated automatically

  when i clicked on simulate esim closed automatically

  11-12M 40-50S shashankchatter10
  
  
  Answer last updated on: Feb. 11, 2021, 2:16 p.m.

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• Still no new project created

  Workspace : C:\Users\Rajesh Behra\Desktop\IIT [INFO]: No new project created

  01-02M 20-30S sonia.behra@thakureducation.org
  
  
  Answer last updated on: Feb. 11, 2021, 2:02 p.m.

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• New project not created

  It says there should be no space, although i am just giving the name as RC

  01-02M 30-40S sonia.behra@thakureducation.org
  
  
  Answer last updated on: Feb. 11, 2021, 1:55 p.m.

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• error during simulation

      while simulating RC circuit it showing "Please select the project first. You can either create new project or open existing project"

  11-12M 50-60S raosriharsha08@gmail.com
  
  
  Answer last updated on: Feb. 11, 2021, 12:46 p.m.

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• Pyplot is not opening

  I'm unable to run the simulation. The application automatically terminates, no error is displayed. 

  11-12M 40-50S Jayaashree
  
  
  Answer last updated on: Feb. 11, 2021, 11:59 a.m.

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• error in project name

  [INFO]: Workspace : C:\Users\sainagaraju\Desktop\esim [INFO]: Workspace : C:\Users\sainagaraju\Desktop\esim [INFO]: Workspace : C:\Users\sainagaraju\Desktop\esim [INFO]: Workspace : C:\Users\sainagaraju\Desktop\esim [INFO]: Workspace : C:\Users\sainagaraju\Desktop\esim [INFO]: Workspace : C:\Users\Desktop\esim [INFO]: Workspace : C:\Users\Desktop\esim [INFO]: Workspace : C:\Users\Desktop\esim [INFO]: Workspace : C:\Users\Desktop\esim [INFO]: Workspace : C:\Users\R sai nagaraju\eSim-Workspace]HOW CAN RECTIFY IT ? I TRIED SO MANY TIMES.....

  01-02M 50-60S sainagarajurouthu@gmail.com
  
  
  Answer last updated on: Oct. 15, 2020, 2:31 p.m.

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• Schematic of voltage regulator is not open

  Dear Sir,Facing problem while opening the schematic of 7805 voltage regulator..

  13-14M 40-50S priti.rajput21
  
  
  Answer last updated on: Sept. 26, 2020, 2:04 p.m.

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• Adding a component

  How do I add potentiometer and speaker in schematic for simulation in eSim

  10-11M 0-10S karanmehta297
  
  
  Answer last updated on: Aug. 26, 2020, 11:08 a.m.

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• Place components

  I need step down transformer to create voltage regulator schematic ,what to type in place components to get step down transformer to place in schematic.plz give solution

  07-08M 20-30S Rojak13
  
  
  Answer last updated on: June 16, 2020, 7:33 p.m.

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• Convert Spice netlist to Ngspice netlist

  I have created Spice netlist (.cir netlist). However I received an error message "The project does not contain any Kicad netlist file for conversion".

  10-11M 0-10S Moses-J
  
  
  Answer last updated on: May 26, 2020, 8:45 p.m.

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• Component selection problem

  1)At the  time of component selection when we type esim_device ,it does not show any component 2)in component  library near about 2500 component So please tell me how to select the component from library

  02-03M 40-50S pramilatanishq@gmail.com
  
  
  Answer last updated on: May 26, 2020, 4:42 p.m.

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• Can not find eSIM component

  As per tutorial, i am trying to place component first time and new window appears as choose component. I can not find any component starting with eSIM there. May i get resolution on this? is any .exe i need to run? or is there any way to browse some file which i dont know?

  02-03M 30-40S bageshree
  
  
  Answer last updated on: May 25, 2020, 7:48 p.m.

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• Unable to find analysis tab in 1.1.2 version of esin

  After generating the netlist cannot able to see the analysis tab in 1.1.2 version of esim

  04-05M 20-30S motheabhinay.reddy2019@vitstudent.ac.in
  
  
  Answer last updated on: May 15, 2020, 11:38 a.m.

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• Unable to read analysis file

  After giving all values and the Kicad to NGspice is successfully converted while simulation its showing as unable to read analysis file. How to resolve it???

  05-06M 30-40S motheabhinay.reddy2019@vitstudent.ac.in
  
  
  Answer last updated on: May 15, 2020, 9:52 a.m.

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• Your schematic contain unknown model lm7805

  While converting kicad to ngspice i am getting error: Your schematic contain unknown model lm7805.I have not taken project folder from spoken tutorial. I have created my won schematic.please guide

  14-15M 0-10S rautdipak85@rediffmail.com
  
  
  Answer last updated on: May 9, 2020, 1:14 p.m.

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• Unknown Model

  I'm trying to create a circuit for seven segment display. I've added a 7_SEGMENT_CA display component to the circuit which is taken from the display library. Hence it shows unknown model while I try to convert from kicad to ngspice. How can I solve this issue? With what can I replace the display with from the eSim library?? 

  10-11M 0-10S kiran.benny2019@vitstudent.ac.in
  
  
  Answer last updated on: May 9, 2020, 10:46 a.m.

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• MISSING OF SUBSCRIPT

  NOT GETTING THE SUBSCRIPT LM7805 IN THE SUBSCRIPTS LIST.WHICH LINK FOR VOLTAGE REGULATOR SHOULD BE DOWNLOADED FROM THE LIST?

  13-14M 10-20S Archita0102
  
  
  Answer last updated on: May 7, 2020, 4:31 p.m.

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• Kicad to NGspice conversion

  Even though I generated netlist but when I am clicking on conversion option it is showing as Project does not contain any Kicad netlist file for conversion 

  01-02M 20-30S motheabhinay.reddy2019@vitstudent.ac.in
  
  
  Answer last updated on: April 17, 2020, 1:16 p.m.

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• Error during simulation of RC circuiit

  Sir, after successful conversion of Ngspice ti Kicad the simulation couldnt start. In simulation error in python plotting editor.

  12-13M 0-10S Sudhirkawade
  
  
  Answer last updated on: Jan. 30, 2020, 12:24 p.m.

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• not able to find saved projects

  I am not able to find saved projects. i want to do simulation of 7805 voltage regulator.

  13-14M 10-20S nishu9835523631
  
  
  Answer last updated on: Sept. 23, 2019, 4:22 p.m.

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• Problem in Changing the Component Values

    Dear Sir,In Schematic window, for \r\nchanging the component values in the circuits each time we need to close\r\n the schematic editor and open it once again.  Its time consuming. Can \r\nyou suggest us solution? 

  01-02M 10-20S KalaiselviS
  
  
  Answer last updated on: Sept. 21, 2019, 3:50 p.m.

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• FILE NOT CONVERTING FROM KICAD TO NGSPICE

  Where do I save the file?

  09-10M 40-50S pearlolive
  
  
  Answer last updated on: Sept. 21, 2019, 2:48 p.m.

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• not able to find source,plot to make the schematic of circuit

  I am not able to find source,plot,flag to make the schematic of circuit from choose component option. I am windows 10 in my PC

  03-04M 50-60S nishu9835523631
  
  
  Answer last updated on: Sept. 21, 2019, 1:16 p.m.

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• Global label

   warning appearingglobal label not connected to any other global label? 

  07-08M 50-60S Tarun
  
  
  Answer last updated on: Sept. 21, 2019, 12:32 p.m.

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• Global label not connected

  Greetings Sir!!!Kindly let us know why is this warning appearing about global label not connected to any other global label? Is this issue related to circuit building process or from software algorithm?

  16-17M 50-60S sunilkhatri1919
  
  
  Answer last updated on: Sept. 21, 2019, 12:01 p.m.

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• global label menu

  difficult to get icon of this global menu

  07-08M 10-20S aartimkarande
  
  
  Answer last updated on: Sept. 21, 2019, 11:56 a.m.

  ---

• Global label not connected

  Greetings Sir!!!Kindly let us know why is this warning appearing about global label not connected to any other global label? Is this issue related to circuit building process or from software algorithm?

  07-08M 50-60S sunilkhatri1919
  
  
  Answer last updated on: Sept. 21, 2019, 11:54 a.m.

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• connecting wire problem

   How can we connect component by wire

  04-05M 10-20S mahajanvinay83
  
  
  Answer last updated on: Sept. 21, 2019, 11:41 a.m.

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• circuit diagram

  how to draw circuit and change its parameters

  05-06M 10-20S kapil_cs27
  
  
  Answer last updated on: Sept. 21, 2019, 11:40 a.m.

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• NOT ABLE TO PLACE BASIC COMPONENT ON THE GRID DOT

  I am not able to place components like resistor ,capacitor, diode etc on grid dot ,Whenever i tried to place component on grid dot the component will automatically shifted between dot of the grid because of which i am not able to connect wire . I had install esim 3 times,But its still not working properly.

  03-04M 10-20S BUNTYJATT
  
  
  Answer last updated on: Sept. 21, 2019, 10:06 a.m.

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• no space between the project name

  when i'm trying to make a project with my name (vishnu) without having a space between the letters then also its  shows that there should be no space between the letter how can i solve these problem.

  04-05M 20-30S vishnu280
  
  
  Answer last updated on: Sept. 20, 2019, 9:53 a.m.

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• kicad to Ngspice

  after inserting library in device modeling. i clicked on convert button, no action take place 

  02-03M 0-10S BUNTYJATT
  
  
  Answer last updated on: Sept. 16, 2019, 4 p.m.

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• plot input not connected error

  While doing electrical error check, along with global label not connected error (which is ignored as explained)plot input not connected error is coming repeatedly even after repeated wire connections please tell how to avoid that error

  08-09M 0-10S jani
  
  
  Answer last updated on: Sept. 11, 2019, 4:27 p.m.

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• how to add the semiconductor devices, When convert kicadToNgspice

  Dear Sir,i want add led when convert kicad to Ngspice but i cant search that device under src/deviceModelLibrary/diode folder

  14-15M 30-40S myothidar
  
  
  Answer last updated on: Aug. 6, 2019, 9:50 p.m.

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• regarding new project creation

  While creating new project,without giving the space in the name of project it shows the error that 'don't give space between the letters'why it happens?

  02-03M 20-30S maskar.pm
  
  
  Answer last updated on: July 29, 2019, 4:39 p.m.

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• I am getting wiring error - reg

  Sir while creating the schematic layout of the given circuit and going for circuit pin checking i am getting the following error "Pin Connected to some other pin but no pin to drive it ". How to fix it.

  07-08M 20-30S Suresh_Sun
  
  
  Answer last updated on: July 27, 2019, 1:14 p.m.

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• scghematic creation

  circuit disappears. whyrestorarationhow to avoid this

  00-01M 0-10S bvnr_s
  
  
  Answer last updated on: July 27, 2019, 1:13 p.m.

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• Annotate

  Why we need power flag

  09-10M 0-10S gauravnarkhede
  
  
  Answer last updated on: July 27, 2019, 12:36 p.m.

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• NOT ABLE TO REMOVE ERRORS IN ERC

  I AM NOT ABLE TO REMOVE THE ERRORS EVEN AFTER CONNECTING THE PWR PROBE

  09-10M 0-10S Navjot.16885
  
  
  Answer last updated on: July 27, 2019, 12:27 p.m.

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• electrical rules checker

  i got error aspin connected to some other pins but no pin to drive itpin 2 (input) of component Q1 is not driven (Net 5)

  16-17M 30-40S travindra
  
  
  Answer last updated on: July 11, 2019, 4:08 p.m.

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• E sim

  I am not able to connect components using wire in schematic.

  06-07M 10-20S kiranwalia
  
  
  Answer last updated on: July 9, 2019, 4:28 p.m.

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• error in erc

  pin connected to some others pins but no pin to drive it.

  06-07M 10-20S kiranwalia
  
  
  Answer last updated on: July 5, 2019, 4:20 p.m.

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• kicad netlist not generated

  "The project does not contain any Kicad netlist file for conversion" error message shown, when  I click on covert Kicad to  NGspice.

  09-10M 10-20S kiranwalia
  
  
  Answer last updated on: July 2, 2019, 3:34 p.m.

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• Error message

  Error while opening python plotting editor. please look at console for more details error message dialog box appeardoAnalyse: iteration limit reached appears in ngspice dialog box

  05-06M 0-10S Dharm_007
  
  
  Answer last updated on: March 16, 2019, 11:22 a.m.

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• unable to open the scematic window

  sirI am unable to open the schematic window as in the video. no window is opened when i click on the schematic button. please help to out.Thank You

  02-03M 10-20S bharavi1729
  
  
  Answer last updated on: Feb. 24, 2019, 11:21 a.m.

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