LM5157-Q1: Impedance Curve simulation for Coupled inductor

Hi Rayees,

I did find a mention about ideal inductors and their limitations.

https://resources.pcb.cadence.com/i/1180526-pspice-user-guide/849?

In general, I'd check cadence for these types of questions, and TI for questions regarding TI products.

If you like, I can check with Cadence on how specifically to simulate your circuit.

Let me know if you'd like me to proceed.

David

Hi David,

Thank you for your reply. Yes, if you can discuss with Cadence and can provide the solution that will be helpful for me.

Regards

Rayees K.E

Will do. I'll post here when I get a response.

Here's the answer from Cadence:

To get the impedance response of an inductor user should run the AC Analysis and plot the inductance using trace expression "1/((I(R1))*2*pi*Frequency)"

But the simulation behavior of inductor will totally depend on the inductor model.
User can also use GFREQ_FILE component in PSpice library to design a frequency dependent inductor as per the datasheet.

Check article in below link from COS

Modeling Frequency Dependent Inductance in PSpice (cadence.com)

Does this answer your question?

David

Hi David,

Thank you for your details.

Regards

Rayees K.E