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Basic Electronics » Falstad circuit emulator in Java

December 09, 2010
by bretm
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This has been mentioned in passing a few times in the forums, but I wanted to mention it in case anyone missed it: Circuit emulator.

It has a bunch of pre-built circuits to learn from, or you can create your own. I made a 5V power supply that runs off a 1.5V battery (actually varies from 1V to 1.5V for demo purposes) and on the right it has a variable load that you can play with. I based it off the design of the LT1073 adjustable DC-DC converter.

You can also define graphs of voltage/current/power and compare different values in X-Y plots or I-V plots. It's pretty cool.

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