View source for ESim/C2/Device-Model-creation-and-Simulation/English



  

'''Device Model Creation and Simulation using eSim'''

'''Author: Gaurav Supal'''

'''Keywords: video tutorial, eSim, Device Model, Parameters, EDA, Simulation, analysis, uploading model'''





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|| '''Visual cue'''
|| '''Narration'''
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Opening Slide
|| Welcome to the spoken tutorial on “'''Device Model Creation and Simulation using eSim'''” 
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Learning Objectives
|| In this tutorial, using '''eSim''' we will learn how to-
* <div style="margin-left:1.27cm;margin-right:0cm;">create '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">add or remove parameters of '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">save the '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">upload the '''external device model'''</div>


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|| '''Show Slide:'''

Systems Requirements
|| To record this tutorial, we will use-
* <div style="margin-left:1.27cm;margin-right:0cm;">'''Ubuntu Linux '''16.04</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">'''eSim '''version 1.1.2.</div>


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Pre-requisites
|| To practice this tutorial, basic knowledge of '''analog and digital electronics''' is required. 
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|| '''System Computer:'''

Desktop icon
|| To launch '''eSim''', double-click on the '''eSim''' icon on your desktop. 
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|| '''System Computer:'''

eSim startup window
|| The''' eSim '''window opens up. 
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|| '''eSim Main Window:'''

Creating device model library
|| Now let us create a '''device model''' library for a '''Diode.''' 
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|| '''eSim Main Window:'''

Click on >> '''Model Editor''' button
|| Click on the '''Model Editor''' button on the left tool-bar. 
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|| '''Model Editor Window:'''

Click >> '''New''' and Enter Model Name >> '''diode_test'''>>Click on '''OK'''
|| Click on '''New''' and type the '''Model '''name as''' Diode underscore test'''.

Click on '''OK'''.
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|| '''Model Editor Window:'''

Select >> '''Diode''' category
|| Now select '''Diode''' category. 
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|| Highlight 
|| The basic parameters of a '''Diode''' is displayed.


We will keep the same for our '''diode model''' and edit it later.
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|| '''Model Editor Window:'''

Click >> '''Save '''


Close '''model editor window'''
|| Click on the '''Save '''button at the top of the '''Model editor window.'''


Now close the '''Model editor window.'''
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|| 
|| Let us run our '''Diode model '''using an example. 
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|| '''eSim Main Window:'''

Open >> '''Diode_Characteristics'''
|| Open the '''Diode_characteristic''' example from the '''Examples folder.'''


Please note:

'''Examples folder''' is located in '''eSim hyphen 1.1.2 folder''' which you have downloaded while installing.
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|| '''Double Click''' >> '''Diode_characteristic''' in projects 
|| From '''Projects''', double-click on the '''Diode_characteristics''' example. 
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|| '''eSim Main Window:'''

Click''' '''on>> '''Open Schematic'''
|| Open the '''schematic''' and view the '''circuit.'''


Now minimize the '''schematic '''window.
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|| '''eSim Main Window:'''

Click on >> '''Convert Kicad to Ngspice'''
|| Click on''' Convert Kicad to Ngspice '''button on the left tool-bar. 
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|| Click >>'''Analysis tab'''

Click >> '''Source Details tab'''.
|| Don’t change the previous values in the '''Analysis and the Source Details tab'''. 
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|| '''Kicad to Ngspice window:'''

Click''' '''>> '''Device Modeling tab''' and Click''' '''>> '''Add'''
|| Next, click on '''Device Modeling tab'''.

And then click on '''Add '''button at the right of the text box.



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|| '''Device Modelling tab:'''

Select''' >> Diode folder >> diode_test'''
|| Select the '''diode underscore test''' from the '''Diode folder'''. 
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|| Click on '''>> Convert''' and click '''>> OK '''
|| Click on '''Convert '''button at the bottom of the window.


Click ''' OK ''' on the confirmation dialog box.
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|| '''Kicad to Ngspice window:'''

'''Close >> Kicad to Ngspice window'''
|| After this, close the '''Kicad to Ngspice '''window. 
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|| '''eSim Main Window:'''

Click on >> '''Simulation Button'''
|| Click on the '''Simulation''' button on the left tool-bar and check the output. 
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|| '''Python Plotting Window: '''

Check '''OUT '''nodes >> 

click '''plot'''
|| 
<span style="background-color:#00ff00;">Check the </span><span style="background-color:#00ff00;">'''OUT'''</span><span style="background-color:#00ff00;"> node and click on the </span><span style="background-color:#00ff00;">'''plot'''</span><span style="background-color:#00ff00;"> </span><span style="background-color:#00ff00;">button.</span>
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|| 
|| Let us now edit our '''Device model''' to re-check the output. 
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|| '''eSim Main Window:'''

Click on >>''' Model Editor button'''
|| Click''' Model Editor''' button on the left tool-bar. 
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|| '''Model Editor Window:'''

Click''' Edit >> Diode '''folder''' >> diode_test'''
|| Click on '''Edit''' button at the top of the '''Model editor window.'''


Then select '''diode underscore test''' from the '''Diode folder.'''
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|| '''Model Editor Window:'''

point to >>''' Add/Remove button'''
|| We can add and remove parameters in the '''model.'''


To do so, click on '''ADD '''to add a parameter and '''REMOVE''' to remove a parameter.
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|| 
|| Now we will '''modify''' the '''parameters''' values, to check the effect on the '''model.''' 
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|| '''Model Editor Window:'''

Double click >> value of '''“N” '''parameter
|| Double-click on the value of '''“N” '''and change the value from 1 point 6 7 9 to 4 point 6 7 9. 
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|| '''Model Editor Window:'''

Click''' >>Save '''

Close'''>> model editor window'''
|| Click on the '''Save''' button at the top of the''' Model editor window.'''


Now close the '''model editor '''window.
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|| '''eSim Main Window:'''

Click on >>''' Convert Kicad to Ngspice '''button''' '''>>

click''' Device Modelling '''tab
|| Now click on '''Convert Kicad to Ngspice''' button on the left tool-bar.


And click on the '''Device Modelling tab.'''
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|| '''Device Modelling tab:'''

Add >> '''Diode>> diode_test'''
|| Add our modified '''Diode underscore test '''from '''Diode folder '''
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|| '''Kicad to Ngspice window:'''

Click on >>''' Convert '''


click >>''' OK'''
|| Click on '''Convert''' button at the bottom of the window.


click on''' OK '''in the confirmation dialog box.
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|| '''eSim Main Window:'''

Click on >>''' Simulation '''Button
|| Now, click on '''Simulation''' button from the left tool-bar and check the modified output. 
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|| '''Ngspice Plot Windows: '''

Hover cursor over the '''ngspice''' plot
|| Notice the change in the '''output plot.''' 
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|| 
|| Let us now upload an '''external model''' file in '''eSim.''' 
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|| '''eSim Main Window:'''

Click on >>''' Model Editor '''button
|| Click''' on Model Editor''' button on the left tool-bar. 
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|| '''Model Editor Window:'''

Click on >>''' Upload'''
|| Click on '''Upload '''button at the top of the''' Model editor window.''' 
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|| '''Model Editor Window: '''

'''Diode '''folder >> '''D.lib'''

'''Note: We are uploading D.lib from Diode folder for demonstration, user can upload any .lib file from his system.'''
|| Go to '''Diode folder '''and select '''D dot lib''' from it

Note: We are uploading '''D dot l i b''' from '''Diode '''folder for demonstration.


User can upload any''' dot l i b '''file from his system.
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|| '''Model Editor Dialog box:'''

Type''' D1 '''>> click''' OK '''
|| A dialog box opens where we will enter the '''Model''' name as '''D1.'''


Now click on the '''OK '''button in the dialog box.
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|| '''Model Editor Window:'''

Close >> '''model editor'''
|| Now close the '''model editor '''window. 
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|| '''eSim Main Window:'''

Click on >>''' Convert Kicad to Ngspice '''button >> click''' Device Modelling tab'''
|| Click on '''Convert Kicad to Ngspice''' button on the left tool-bar.


Now click on the '''Device Modelling tab.'''
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|| '''Device Modelling tab:'''

Click on the '''Add '''button

'''>> User Libraries '''folder''' >> D1 '''folder
|| Add our modified '''D1''' from '''User Libraries folder.''' 
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|| '''Kicad to Ngspice window:'''

Click on >>''' Convert '''and


Click >>''' OK'''
|| Click on the '''Convert button''' at the bottom of the window.


Now click on '''OK '''in the confirmation dialog box.
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|| '''eSim Main Window:'''

Click on >>''' Simulation '''Button
|| Lastly, click on the '''Simulation''' button from the left tool-bar and check the modified output. 
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|| 
|| <<PAUSE>>

Now let us summarize.
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Summary
|| In this tutorial, we learnt how to,
* <div style="margin-left:1.27cm;margin-right:0cm;">create '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">add or remove parameters of '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">save the '''device model'''</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">upload the '''external device model'''</div>


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Assignment
|| Here is the assignment for you to solve.


Create the '''Full wave Bridge Rectifier circuit''' using the '''D dot l i b model '''file in '''eSim''' and simulate it.
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Forum
|| Please post your timed queries in this forum. 
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FOSSEE Forum
|| Please post your general queries on '''eSim''' in this forum. 
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Textbook Companion
|| The FOSSEE team coordinates the TBC project. 
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'''Acknowledgment'''

[http://spoken-tutorial.org/ https://spoken-tutorial.org]


||
* <div style="margin-left:1.27cm;margin-right:0cm;">Spoken Tutorial Project is funded by NMEICT, MHRD, Govt. of India.</div>
* <div style="margin-left:1.27cm;margin-right:0cm;">For more details, visit this website.</div>



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Thank you slide 
|| This is Usha from IIT Bombay signing off.

Thank you.
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