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Created April 13, 2012
Last modified April 13, 2012
Tags behavioral   voltage-regulator  


As a demo of behavioral voltage and current sources in CircuitLab, here's a simple model of the TL431 adjustable shunt voltage regulator.


The current source I1 is a special "behavioral" source whose current is defined by an algebraic expression. In this case, it's a transconductance limited to be single-sided.

Run the DC Sweep simulation to see the TL431 as a voltage regulator!


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