Hello,
I'm designing a Power Supply SMPS 220v AC to 3 output ( 12v- 9v -5v) each 3Amp
I will use a flyback transformer 4 output (70 to 120 W ) (ETD 39)
I chose this transformer to get the 3 output with the desired rating, but I'm still a student who try to get experiences so if there is something else better than ETD39, please kindly, let me know

I'm trying to simulate the circuit using circuit wizard simulation software but I didn't find a library for this transformer so can you help me ?
is there a better software that is more accurate than circuit wizard ?

thanks in advance

 

You might some idea from this thread: https://forum.allaboutcircuits.com/threads/smps-transformer-calculation.62083/

 

You have asked the same question in multiple threads. I think you should stick with the homework thread only.