Download information Go to http://www.5spice.com to download the file. It is a free software. They only charge for the commercial use of it. ---------------------------------------------------------- Changing the Name and Value of an Element (Basic) Double click on the element after you place it on the schematic. In the popup window, write the name of the element (e.g. "V1" or "R3") to REF # and the value of that element (e.g. "10" for battery, "1K" for the resistor) inside the second box which says "volts", "current" or "value", etc. Click OK to close the window. Adding test points(Voltmeters or Ampermeters or differential meters) The third button from the button helps you add test points. These are really useful to put names to your test values or to sketch transient graphs. Just select the necessary tool for your measurement and put it into the net(circuit) as if you are connecting a real voltmeter or ampermeter. If you made the connections right and labeled your test points, your test results will be much more pretty . Sketching Transient Graphs After you have placed your test points, in Analysis Dialog(Analyze->Project Defaults) go in the Graph/Table tab. It is usually better to chose Autoscaling for both the axes. After that you can have 4 variables plotted vs. Time. or 2 variables and some operation between them. The right/left axis option lets you choose the axis of the graph which will show your variable's scale. As understandable, right axis means right edge of the graph and vice versa. Next to the Right/Left option there will be a line option, which lets you customize the line of the graph(choose color or make it dotted etc.). And now rest is unnecessary as you've chosen autoscaling, just press "apply and run". Handling Data of a Graph You have a graph and don't know how to save? Don't get into the trouble of using "Press Screen" key and pasting the screen into paint etc. Just right click on the graph and you have an option to "save image to file". Well, think that there is no need to explain what to do after choosing it. You can also export the data of the graph(values and coordinates) but it says that we need to register it(well maybe later ). On top of the graph you may see a blue dot, which is on top of a vertical line, you'll see that you are able to move that vertical line, and you shall notice that as you move the line x,y coordinates on the top right corner of the graph is also changing, this is a tool used to acquire numerical data in a given time, to choose which function or variable to follow, just click on the needed variable on top left corner. Saving and Reloading a Schematic and an Analysis of the Schematic To save go to File and press Save All it will save your schematic and your analysis defaults(ac, dc, or transient analysis and their options...) in two seperate files. One of them is a ".sch" file and the other will be ".anl" file. SCH stands for schematic file and ANL stands for analysis file, both files can be read without the other. To load first open your schematic file via "File->Open Schematic" and then open your analysis file via "File->Open Analysis File", then all you have to do is to press F9 or "Analyze->Run" then all your previous results are again in front of you. Personalizing Your Schematic This is a pretty easy one Just double click on the table on the bottom right corner of your schematic, there will be a window which will allow you to change the texts in the table, so you can sign your schematics