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  • UCC28070A: ucc28070a

    Resolved
    Part Number: UCC28070A Tool/software: Hello, We are using this controller for a PFC with universal input 85 Vac till 265VAC. The PFC is designed for 2250W nominal. When we connect the converter to a voltage of 230VAC for exemple, and then we load to…
    • Resolved
    • Answered

  • UCC28070A: UCC28070A problem at 255 to 265Vac

    Resolved
    Part Number: UCC28070A Tool/software: hello, we are using a Ucc28070A for an interleaved PFC with a mains input of 85-265Vac 47Hz-63Hz and an output of 385Vdc 2KW (5.2A). Switching frequency = 300kHz. This one works correctly at 2KW up to a voltage of…
    • Resolved
    • Answered

  • UCC28070A: Interleaved 4 Phase operation using UCC28070

    Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 , Tool/software: Hi TI Team, I am using UCC28070 for Interleaved PFC for 3.3KW Power,and its working good I would like to go for 6.6KW Interleaved PFC,i am planning to go for 4Phase interleaved…
    • Resolved
    • Answered

  • UCC28070A: What cause the inductore current doing like this

    Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Tool/software: Hi team, I wanna ask what reason cause my inductor current acting wrong? Below is my waveform,yellow is input voltage,green is input current,and red is inductor current. …
    • Resolved

  • UCC28070A: Inductor Current Problem

    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 , UCC28070EVM , UCC28180 Tool/software: Hi team, I am doing a boost PFC converter, the input voltage is 90-200Vac, output voltage is 300V ,the output power is 100W. The switching frequency…
    • Answered

  • UCC28070A: How to solve output ripple

    Resolved
    Part Number: UCC28070A Tool/software: Hi team, I want to ask how to solve the output voltage ripple, this is my waveform . Orange waveform is my output voltage, red waveform is the current of inductor. You can see the ripple is about 7V. And that is…
    • Resolved

  • UCC28070A: Component design

    TI Thinks Resolved
    Part Number: UCC28070A Tool/software: Hi team, this is my schematic design . I want to do a boost PFC circuit(non-interleaved), the input line frequency is 50~10000Hz ,input Voltage :15~50Vac, Output voltage:90V, output power:100W,switching frequency…
    • Answered

  • UCC28070A: 3.3KW to 6.6KW

    Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Tool/software: Hi TI Team, I am using UCC28070A Interleaved PFC IC for 3.3KW AC to DC front end section and working fine I would like to change same schematic to 6.6KW ~7KW,what changes…
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    • Answered

  • UCC28070A: The input voltage range and output voltage range

    Resolved
    Part Number: UCC28070A Tool/software: What is the range of the input and output voltage? input voltage: 20V ; output voltage: 50V ; power: 50W ,could it be possible?
    • Resolved

  • UCC28070A: Updating kVFF value and resetting VINAC Peak Detector

    TI Thinks Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 Hello, we have following question to related table/values: When is the kVFF value updated, when is the VINAC Peak Detector reset?

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