ESim/C3/Uploading-a-Spice-Device-Model/English-timed
From Script | Spoken-Tutorial
| 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 |
