Dear all,

I am new to this forum and I really hope I posted this into the right place.
On a way to solve a problem for my mathematical-physics class I tried to solve simple circuit with LTspice (picture below).
As a result I get 0V everywhere. What is wrong?

Thank you for your time!

 

What is wrong?

What is the current direction of the two inductors (run the cursor over them to determine that).
You may have them going against each other, which would cancel them.

 

See

 

Hello again,

Thank you but something is still not working;
I selected skip initial operating point solution and this showed:




WARNING: Node N003 is floating.

Per .tran options, skipping operating point for transient analysis.
Singular matrix: Check node n002
Iteration No. 1
Fatal Error: Singular matrix: check node n002
Iteration No. 1

This circuit has floating nodes.

Hope I did everything correct. Thank you for your time again!

 

I had problems with the simulation also. I could not get it to work as Bordodynov did.
It appears to not like setting initial current in an inductor in series with a capacitor.
So in my simulation below I added switches to momentarily short the capacitor at the start of the simulation.
The simulation then seems to work normally.

 

I have assigned the initial voltage on capacitor in most capacitor. This to value of the capacitor is added ic=0.

 

I have assigned the initial voltage on capacitor in most capacitor. This to value of the capacitor is added ic=0.

Interesting technique.
I haven't use the IC=0 with a capacitor before but it certainly works to give a proper simulation for this circuit.