Easy Circuit Simulation
Of course, Spice is the usual suspect when you want to simulate a circuit. But it isn’t quick and easy to set up, and can be hard to use for beginners. Recently, I did a basic electronics class for some students and we used this gem:
This Java applet has lots of illustrative circuits and you can also select a blank circuit and draw your own. In addition to mixed analog and digital simulation, it also shows current magnitude using a unique moving dot display and has a built-in scope function. Great for quick mock ups or teaching situations.
Of course, if you need real Spice, Linear Technology has the excellent free LTSpice (sometimes known as SwitcherCAD; see http://www.linear.com/company/software.jsp). Its for Windows, but it works with Wine under Linux.
There is also an active Yahoo Group for LTSpice at http://groups.yahoo.com/group/LTspice/.
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How do I make my owncircuit with this aplet?
From the Circuits menu select “Blank Circuit”. Then right click in the schematic area to add items, move them, and wire them.
Use File Export to save your circuits so you can import them later.