Welcome to the course of computer simulation of electronic secrets with LTE spice. So first thing you're going to do is go to Google and type LTE spice. And then you choose this unique from another devices, which in my case is the second one. And then in this page you have lots of information about LTE spice. In a nutshell, in LTE spice, you can draw an electricity grid and simulated so you know the voltages and currents of the secrets and how they vary over time. The great advantage of LTE spice it is, is that it is available for free.

So if you're studying electronics, especially if at university level, you're going to benefit from it because it will help you understand basics of electric secrets behavior and you help you design new secrets as well. Here you can download the program for both Windows and Mac operating system. Also download just double click the file and the installation is pretty straightforward. So, also have downloaded the LT spice program and you have opened it we can start to understand how to use it. So first thing you want to do is click here on your schematic and then we're I will show you some choose use to draw a secret like a resistor. And then if if you want to, but another resistor, just click another place you want to use the resistor click Ask key use ASCII zero Then eat some register you can use the scissor to cut.

Now as key to your return to this is true and are going to use a capacitor, capacitor and inductor. Now free we can see that the screen is getting small so we can use the zoom back so we can reduce the size and see all the secrets in the same screen. Next thing, every secret you're viewed let's have a ground connection. magically it is match voltage of for reference, it means that the problem We'll understand this point of the zero volt reference. And then here we can add all of our components. For instance, we're going to use voltage which is a voltage source.

And then with this pencil, we can wire this all and connect them electrically, like this. Just left click, left click, left click, left click, left click, left click here, on the connect these, these connect the ground here. So as key now one important thing is that you can click on this hand to drag Then click something and you can move it to another place. You also have the move, which means you have to select and then you can drag. Then you can but it anywhere you choose. Now another thing you can do is to click here, which is copy the copy and click some component and you create an eco components.

And then another useful thing is label net. We're going to use it in the inductor vl here but it's not very good to see these way so we're going to see sir and cut And but a wire to the right. And we finished the wire by click right click and make this also. So we're going to put a label net v L Yeah, not here. We're kind of moved in that as well. And but v c here and we can also put the air here.

Next thing I want to show you is the next the text on the schematic we can say. Series series COMM The Nation Arrow See, and but here, anywhere you choose. And then what can I show you a more as a as a lesson of very basics of secret drawing here is we can undo. So, if the text doesn't show anymore doesn't appear anymore, we can read your. So the text comes back and then into to hear of the running man we can simulate the circuits but the simulation itself will be covered in the next lessons. So the next lessons Be patient, we're going to see it and then what have I Just show you.

And when we create when we go to simulation, we can change some things like color preferences, all these things, clicking here here. We can, you can choose color, a different color on and a schematic as well. And comment text, you can change the color, like click Apply. So you'll see the difference. Apply. We see the difference.

And then if I want to choose another color for this component body, we see click here and so it's a lighter green We can return to the defaults whenever we choose. So just click default and apply your weight on to their previous values. And this is the first lesson and the next lessons, we're going to use some simulations. We're going to click components and add values for each of them and make some analysis.