11-06-2017 04:28 PM
I keep having trouble running a simulation using "Single Frequency AC" mode with elements in parallel. When I do, I never get the output. I would simply like to see magnitude and angle of the voltage in a simple circuit like this. I have attached a sample file. When I solve like this with 2 elements in parallel, I get zero output. However if I remove the parallel inductor or either connection to it, then it seems to work. Can anyone help me with this? Any/all help is much appreciated.
11-07-2017 04:22 PM
This is what the Help files mentions:
Singular Matrix
A singular matrix is a condition that arises when the simulation matrix has either no solution or an infinite number of solutions. When this condition arises, the simulator reports the "Matrix is singular" error.
The three most common causes of this condition are:
Parallel Inductors
Inductors are represented as 0V voltage sources during the calculation of the DC operating point. If the analysis requires a DC operating point, it is illegal to place inductors in parallel with other inductors or with voltage sources. If you must place inductors in such a configuration, break the loop with a small resistor (for example, 1mW).