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Author Topic: new user having terrible time with "irregular circuits"  (Read 1683 times)
bob628
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« on: December 20, 2014, 06:33:01 PM »

I'm having trouble getting even very simple circuits to under AC analysis without giving "irregular circuit" errors.  The ERC comes out OK but when I try to do an AC analysis it keeps giving me an irregular circuit error. MOreover when I make very small changes to the circuit the apparent node that is in error changes. I've tried to be very careful about where the wires are terminating.... Would appreciate any help.  I've attached on example circuit.
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horvatht
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« Reply #1 on: December 21, 2014, 01:49:06 AM »

There should be a resistive path from every node to the ground. In your circuit this rule doesn't apply to the node between C1 and R1, nor to the node between C2 and R1. Set the value of the parallel resistance (RPar) of C1 or C2 to a non infinite value or define a nonzero Shunt conductance (for example 1p) in the Analysis.Set analysis parameters dialog
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