We are looking into designing a USB-C-PD power supply and want to make use of the INN3379C with GAN FET. I have found the reference design DER803 really useful. If I would use 2x flyback converter would it be enough to use one EMI filter and rectifier bridge like in the DER-803 reference design or two. Basically would like to have 2x USB-C-PD outputs controlled. That means 2x individually 5V/3A 12V/3A 20V/3A controlled via a USB-C-PD controller.
I'm open for any advice for a compact and powerful design.