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  • UCC28065: Information on UCC28065 compared to UCC28063A and UCC28064A

    TI Thinks Resolved
    Part Number: UCC28065 Other Parts Discussed in Thread: UCC28063A , UCC28064A , , UCC28063 , UCC28064 Tool/software: Hi, UCC28065 is released as a successor model to UCC28063A and UCC28064A. Q1 UCC28065 has an improved operating frequency compared to UCC28063…
    • Answered

  • UCC28063A: About VSENSE filter capacitor

    Resolved
    Part Number: UCC28063A Hello, I recently asked about the phase compensation of the UCC28063A. Among them, I was advised to reduce the capacitance of the VSENSE filter capacitor shown below to less than 1nF. (Question) What is the reason for making the capacitance…
    • Resolved

  • UCC28063A: Is the AC input current sinusoidal?

    TI Thinks Resolved
    Part Number: UCC28063A Other Parts Discussed in Thread: UCC28063 , Hi Team, With reference to the scope image below, our customer would like to confirm if the AC Input current on a circuit with UCC28063 must be sinusoidal. The AC input voltage is 100V and…
    • Answered

  • UCC28063A: UCC28063A Inductor audio noise

    Resolved
    Part Number: UCC28063A My Power in VAC264V full load 300W condition have “Zizi…” audio noise, and VAC85~240V input no “Zizi…” audio noise, please get me a command to solve this audio noise Issue, thanks ! PS, all…
    • Resolved
    • Answered

  • UCC28063A: UCC28063A PFC DC level Accuracy

    Resolved
    Part Number: UCC28063A For same circuit making two set power stage and get different PFC output DC Level, one is DC395V and another is DC406V,How can this situation be improved ? B/R James
    • Resolved
    • Answered

  • UCC28063A: UCC28063A

    Resolved
    Part Number: UCC28063A Hi The following waveforms are shown at AC 90V I don't think it's OCP. What's the problem? What are the debugging points to improve? Thanks
    • Resolved

  • UCC28063A: UCC28063A question about interleaving operation,master and slave were not 180 ° shifted waveforms.

    TI Thinks Resolved
    Part Number: UCC28063A Dear support member, My customer created board using UCC28063A. When we confirmed the interleaving operation,Master and slave were not 180 ° shifted waveforms. The waveform was out of the interleave operation as shown below…
    • Answered

  • UCC28063A: Questions about the operation of the UCC28063A PWMCNTL pin.

    Resolved
    Part Number: UCC28063A Dear support member, My customer used UCC28063A. I have a question. (Question) When AC interruption occurs from the state of normal operation and the PFC voltage falls below the PWMCNTL threshold, I would like to switch the PWMCNTL…
    • Resolved
    • Answered

  • UCC28063A: PF optimization for UCC28063A

    Resolved
    Part Number: UCC28063A Hi, We find UCC28063A solution PF is low, 1kW load PF is about 0.98, 500W load PF is 0.92, could you pls give some suggestion on how to improve PF? Thanks.
    • Resolved

  • TINA/Spice/UCC28063A: Question about UCC28063A SIMPLIS Model.

    TI Thinks Resolved
    Part Number: UCC28063A Other Parts Discussed in Thread: TINA-TI , TIDA-01495 , , UCC28063 , UCC28064A Tool/software: TINA-TI or Spice Models Hi： Since question was about SIMPLIS , here post was. I am using the SIMPLIS model to simulate TIDA-01495 , but the model…

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