Is it possible if we run AC analysis using general current PMW controller & not the actual PWM controller specified by the vendor? Reason is because I asked the chip maker regarding their SPICE modelling however they don't have that modelling for that specific model. My actual part is High-Voltage, Quasi-Resonant, Controller Featuring Valley Lock-Out Switching
I'm wondering on how power supply designer do their compensation during AC simulation without using the actual model. Is there any "general model" that can be use as reference during the initial small signal simulation? Or they using hand calculation?
I'm thinking to do modelling from C.Basso A Quasi−Resonant SPICE Model Eases Feedback Loop Designs using SIMPLIS for my flyback QR converter.
I'm not expect the result will be totally same but I'm hope that it can help me to do estimation of compensation on my power supply
I'm also trying to understand & derive the transfer function of this flyback QR, however it is really difficult for me (maybe lack of understanding in control theory). Does anyone have tips on how to learn & improve this?
I need your advice because I'm worry that I'm take the wrong step to do the analysis.