Other Parts Discussed in Thread: LM5022
I'm trying to setup a simulator of a Flyback design using an LM5022. It's actually very similar to the design detailed in SNVR019. However, I am struggling with Tina getting the transformer correctly specified.
Because it is a 3 coil transformer, I've been using the "non-linear transformer with separate secondary coils". However, within this model is there nowhere to specify actual inductance of each coil? Is there a relationship with turns ratio to inductance?
Pursuing the design with a separate inductor in parallel to the primary coils produces some strange outputs: so I'm unconvinced this works as a proper simulation. Attempting to specify any core except 'default' then produces convergence errors.
Q1: how do you specify the inductance of each coil within this model?
Q2. If the inductance of the coils related to the number of turns, what is the relationship? For my transformer I have the inductance of each coil, but not the turns-per-coil. If I can back-calculate this, it may work.
Q3. Is there any way to manually couple inductors, instead of a transformer model (bear in mind I need to couple 3x inductors)?
Thanks!
