UCC25600EVM: Technical Clarification on PMP11064 Design Parameters

Part Number: UCC25600EVM

Tool/software:

Dear TI Team,

 

I am reviewing the PMP11064 evaluation board design and would like to clarify a few design considerations:

 

Flyback (UCC28910D):

  • What ripple current value was assumed during the primary inductance calculation?
  • My computed value for the primary inductance does not align with the design, hence I would like to understand the design basis.

 

LLC (UCC25600D):

  • What upper and lower resonant frequencies were selected for this design?
  • Could you elaborate on the design methodology or criteria used to determine these values?

 

PFC Stage:

  • What ripple current assumption was used in the inductor design?

 

Your inputs will help me reconcile my calculations with the reference design.

 

Best regards,
Anand