Coupled Inductor Symbol

[KiGee]

Do I need to use the L_Coupled symbol ??
I am simulating the following oscillator circuit using two coupled inductors with the coupled inductor statement:

This works very well. The coupled inductors L1, L2 will be wound on a ferrite toroid and housed in a toroid housing to mount on the PCB. See below:

A footprint is available for this:

PROBLEM: As this is a 4 terminal device, do I have to use the coupled inductor symbol (4 terminals), or can I ‘map’ the two inductor footprints into that of the 4 terminal inductor housing ??

[holger]

I guess that the ideal inductors you have been using in your schematic don’t have a footprint attached.

Starting with the PCB and its footprint of the EPCOS transformer, the way to go in my view is:

Use the footprint related to the EPCOS transformer on the PCB

Choose a symbol related to this footprint, e.g. that of a coupled inductor. Perhaps create a personal symbol copy with this footprint attached.

Check if EPCOS is offering a spice model for this device

If not, create your own spice model like

.subckt coupledcoils n1 n2 n3 n4
L1 n1 n2 1u
L2 n3 n4 63n
K1 L1 L2 0.99
.ends

and attach it to the symbol

[KiGee]

Thanks for the suggestion holger. That solved my issue.