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UCC2897A: On the design of transformer and secondary side smoothing inductor

Masazumi Ishii
Genius 3945 points
Part Number: UCC2897A
Other Parts Discussed in Thread: UCC24612

Hello.

I have a question about UCC2897A.

1 Do you have Application note on transformer and smoothing inductor for secondary side of UCC2897A?

２　I am planning to make it from the PFC inductor to make the IC (UCC 2897 A) power supply.
Are there reference circuits and application notes?

３　Is there a secondary side synchronous rectification IC for UCC2897A?
Can I use UCC 24612?

Thank you.

  • 0
    TI__Mastermind 34465 points
    Hello Masazumi Ishii,
    The Application Report SLUA535 details a complete design of an active clamp forward topology based on the UCC2897A controller.
    You can also use the Power Stage Designer tool to quickly design the transformer and output inductor as well as view the switching waveforms for your particular design.
    This tool is located here:
    www.ti.com/.../powerstage-designer
    There are many reference design for the UCC2897A and I believe some use a synchronous rectifier controller for additional efficiency improvement.
    The UCC24612 is a suitable device for this application.
    You will find the reference designs here:
    www.ti.com/.../toolssoftware

    Regards
    John