Answered

• UCC256404: Startup issue of UCC256404

  

  Joe Fledderman

  Resolved

  Part Number: UCC256404 Other Parts Discussed in Thread: PMP40580 , TL431 Tool/software: The previous thread was locked, so I couldn't add to it, but I did realize my error with only trying to power the LLC. I didn't think I could startup the chip with…

  • Resolved

  • over 1 year ago
  • Power management
  • Power management forum
Answered

• RE: UCC256403: Input capacitor selection requirements

  

  Manikanta Pallantla

  Resolved

  Hi Kaji, I assume you wanted to connect the LC filter at the output of the PFC capacitor to make the LLC input voltage ripple free. Since the ripple voltage at the PFC capacitor twice the input line frequency, the required filter size would be huge…

  • over 3 years ago
  • Power management
  • Power management forum

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