Hi,
I am trying to design flyback SMPS for an input of 240V and output of 25V, 1.2A. I have used web bench power supply design to generate a circuit. I have created similar circuit in TINA. But I could not able to generate the desired output.
My doubts are the following:
1. I have used non linear transformer with seperated secondary coils in the circuit. I have kept N primary as 63, N secondary as 11, N aux/ third winding as 9. What are the specifications of transformer I will have to use to simulate a circuit with UCC28700 in TINA ? If in case you have any existing transformer with the configuration mentioned in web bench power supply design please do send me in reply to this. If you do not have, please give me the necessary guidelines for creating a transformer mentioned in the web bench power supply design.
2.In the reference design of UCC28700 I have noticed a custom made transformer. How can i edit the settings of that transformer to suit my requirements. In the reference design the ouput is 5V. My desired output is 25V, 1.2A.
3. While I am perfoming transient analysis I am getting various graphs even though I have not mentioned them i.e., Graphs of V_V1, V_U_PM_27, V_MaskGEN. What are these graphs. why are they coming ?
I have attached my design and Hyper link of web bench power supply design too.
Thanks,