ESim/C3/Uploading-a-Spice-Device-Model/English-timed

Time	Narration
00:01	Welcome to the spoken tutorial on Uploading a Spice Device Model in eSim.
00:08	In this tutorial, using eSim we will learn - To create a Schottky Diode using the Upload option.
00:17	To record this tutorial, we will use- Ubuntu Linux OS version 16.04 eSim version 2.0
00:28	To practice this tutorial, you should know to create a circuit schematic and simulate the netlist file in eSim.
00:39	If not, watch the prerequisite eSim tutorials on this website.
00:45	The device model file begins with a dot model statement.
00:50	mname indicates the model name like diode model 1N4007, 1N534A. Component type indicates the type of model used.
01:05	Example: D is used for Diode,M for MOSFET,and NPN or PNP for BJT.
01:15	pname is the parameter name and pval is the parameter value.
01:22	The model library files added using the Upload option will be saved in the User Libraries folder under device Model Library directory.
01:35	The model library files are used with the components present in eSim underscore Devices.
01:44	You can also refer to the spice models available in the Ngspice manual.
01:51	To launch eSim, you need to double-click on the eSim icon on your Desktop.
01:58	I have already opened eSim. Pause the video here.
02:02	Download the Schottky diode 1N5711 library file from the Code file section available on this page.
02:13	Save it on your Desktop with dot lib extension.
02:19	On the eSim window, click on the Model Editor button from the left toolbar.
02:26	In the previous tutorial, we have seen how to add a Device model using the New option.
02:35	Now, we will add a Device model library using the Upload option.
02:42	On the Model Editor tab, click on the Upload button.
02:47	I have already downloaded the Schottky diode IN5711 model and saved it on my Desktop.
02:57	Click on the Desktop. Click on the Schottky dot lib file.
03:04	Click on the Open button.
03:07	A pop-up window Model Name will appear.
03:11	In the Enter Model Library Name, type new model name as Schottky. Click on the OK button.
03:21	The device model Schottky and its xml file will be saved under the User libraries folder.
03:30	Let us simulate the characteristics of Schottky diode.
03:35	We will open the example Diode Characteristics from the eSim Examples folder.
03:43	On the eSim window, click on the Open Project option from the top menu.
03:50	Locate the directory where the eSim is installed.
03:55	Click on the Examples folder.
03:59	Scroll down and select the Diode underscore characteristics.
04:04	Click on the Open button. The Diode characteristics example is added to the eSim window under Projects.
04:14	To see the schematic, select Diode characteristics.
04:19	Click on the Open Schematic button from the left toolbar. It directs us to the schematic editor.
04:28	Press F1 key to zoom in the schematic.
04:33	Let us go back to the eSim window.
04:37	On the eSim window,select the Diode underscore characteristics.
04:43	Click on the Convert Kicad to Ngspice button from the left toolbar.
04:49	In the Analysis tab, select DC.
04:53	Scroll down to enter values. Enter Source 1 as V1.
05:01	Enter Start as 0. Enter Increment as 0.1. Enter Stop as 0.4.
05:12	In the Source Details tab, enter the value as 1.
05:17	Skip the Ngspice Model tab.
05:20	Click on the Device Modeling tab.
05:24	Click on the ADD button. Double-click on the User Libraries folder.
05:31	Click on Schottky dot lib file and click on the Open button.
05:37	On the Kicad to Ngspice tab, click on the Convert button.
05:43	Click on the OK button in the Information dialog box.
05:48	Now, let us generate the plots.
05:51	On the eSim window, click on the Simulation button from the left toolbar.
05:58	The diode has a knee voltage or turn-on voltage of around 0.2.
06:05	The forward current is 95 microampere.
06:10	These diodes are used in power rectification applications. Close the Ngspice terminals and plots.
06:20	In the Python plot window, check the In and Out nodes.
06:25	Then click on the Plot button.
06:29	You can see the input and output plot. Close the Python plot.
06:36	Let us now summarise.
06:39	In this tutorial, we learnt to create Schottky Diode using Upload option.
06:47	Do you have questions in this Spoken Tutorial?
06:51	Choose the minute and second where you have the question.
06:55	Explain your question briefly.
06:59	Someone from the FOSSEE team will answer them. Please visit this site.
07:07	For any general or technical questions on eSim, visit the FOSSEE forum and post your question.
07:15	The FOSSEE team coordinates the Circuit Simulation project.
07:20	We give Certificates and Honorarium to the contributors. For more details, please visit this site.
07:29	The FOSSEE team coordinates the Lab Migration project. For more details, please visit this site.
07:38	Spoken Tutorial Project is funded by NMEICT, MHRD, Govt. of India. For more details, visit this site.
07:50	This is Gloria N from IIT Bombay signing off. Thank you

Contributors and Content Editors

Pratik kamble