About Converting KICAD to ngspice
In the tutorials, a particular value is taken for the analysis, and for the source, can we change the values other than putting the same values which is shown in the Tutorial, if we can choose our own values what are the conditions or rules we should follow?
eSim Simulating-an-Astable-Multivibrator 07-08 min 50-60 sec 30-06-23, 11:28 p.m. tarakratna1301

#### Answers:

Dear Student,
Yes, you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar

you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar
add comment

Answer
Font Size...
09-10-23, 5:44 p.m. janaki9221@gmail.com

you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar
add comment

Answer
Font Size...
09-10-23, 5:45 p.m. janaki9221@gmail.com

you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar
add comment

Answer
Font Size...
09-10-23, 5:45 p.m. janaki9221@gmail.com

you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar
add comment

Answer
Font Size...
09-10-23, 5:45 p.m. janaki9221@gmail.com

you may choose any values of your own to do the simulations. You can change them according to your design.
Some thumb rules that must be taken care of:
1. Start Time should be less than the stop time.
2. Step time should be much less than the stop time.
3. It is preferrable to have Step Time= (Stop Time- Start Time)/10^3
4. VDD/VCC supply source should be more than the any other sources in the circuit.
5. Take care of the units while entering all the values.
6. For SINE sources, take care of the frequency according to the Transient Time.
These are only suggestions not compulsions. You may take any other value if required.
For more details, please check out the Ngspice Manual:
https://ngspice.sourceforge.io/docs/ngspice-manual.pdf
If any more queries, please feel free to contact us: https://esim.fossee.in/contact-us.
Thanks & regards,
Sumanto Kar
eSim team
01-07-23, 10:14 a.m. SumantoKar
add comment

Answer
Font Size...
09-10-23, 5:46 p.m. janaki9221@gmail.com

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