ac analysis problem

[tanu87]

Hi,

I have a problem with AC Analysis. When I am going to display Ac Analysis in grapher view, it shows nothing.

Please help me out regarding this matter.

[Tien_P]

Hi,

There are several situations that can cause a "Singular matrix " error and one of them is having inductors in parallel. To get around this, place a small resistor between the inductors as shown in the attached file.

[tanu8]

Thanks for your reply. But I want to know that should I insert a load resistance everytime when I use inductor or capacitor.

[Tien_P]

Hi,

What are you trying to do? Yes, you usually see a load resistor but you don't always have to place a resistor when you are using an inductor or capacitor.