| FORUM

FEDEVEL
Platform forum

PDN time domain response simulation on LTSpice

User , 10-13-2024, 10:36 AM
Hello, I learnt how to simulate a PDN impedance on LTSpice. I am now interest in simulation the transient response in the time domain of a PDN.

Let's say I have a PDN with an antiresonance of 10 Ohms @1MHz.
I thought that is I excited the PDN with a 1MHz Current Sine Wave of 1A amplitude, I would get the same voltage transient as if I had between the voltage source and the current source, a resistor of 10 Ohms. Simulations shows I am wrong.

Can someone help me correct my understanding ?
User , 10-13-2024, 10:42 AM
In my case, I tried applying a 1A sine wave whose frequency is equal to an antiresonance peak of my PDN, but I get a damping effect even though I put all resistors to 0, and the sinewave current load does not stop.
QDrives , 10-13-2024, 08:20 PM
Care to share the schematic too?
Use our interactive Discord forum to reply or ask new questions.
Discord invite
Discord forum link (after invitation)

Didn't find what you were looking for?