Hi,
I need to design a flyback converter for 30W using UC3842 as pwm controller.
i am planning to use EPCOS N87 in e20 core.I think the material can support 140khz i which i prefer to switch...hope E20 can transfer 30 W at 140k
also i have currently choosen 7N80 as fet for switching.
Now i need to design transformer.can someone please provide me information regarding transformer design for UC3842
also can synchronous rectification be used in flyback topology?please suggest a TI solution if any