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  • UCC28070A: Questions about the UCC28070A

    TI Thinks Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28180 Hi Can you help with below several questions for UCC28070A from my customer? Open‑Loop Detection Datasheet mentioned open-loop detection, however there is no detailed description…

  • UCC28070A: Power limitation at high line

    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 , UCC28070EVM Dear all, Developing a 600W PFC with UCC28070 and searching into the TI forum without any success… (except Mark Walters 4 years ago, without any conclusion) It seems…
    • Answered

  • UCC28070A: Please tell me how to actually measure the voltage loop and current loop characteristics.

    Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 In Interleaved PFC using UCC28070A, Please tell me how to actually measure the voltage loop and current loop characteristics. The following materials include Graphs of theoretical voltage…
    • Resolved

  • UCC28070A: K(D) Equations in UCC28070A databook

    TI Thinks Resolved
    Part Number: UCC28070A Hi TI I wonder how equations 2 and 3 K(D) are derived. I want to know a reference book or data. thanks for your help.

  • RE: UCC28070A: 7kw PFC project

    Hi Acai, I attached the Gerber file in case other engineer wants the file. You can download by yourself. 2100.PMP4311 GERBER.zip
    • Answered

  • UCC28070A: Request

    Resolved
    Part Number: UCC28070A Hi I'm testing Bridge-less circuit by UCC28070A. Please let me know why the circled check of the PFC MOSFET waveform. Test Condition Input: AC 90V Output: DC 390V 1.3A(About 500W) Thanks & Best Regards
    • Resolved

  • UCC28070A: Need help selecting component values for different modes

    TI Thinks Resolved
    Other Parts Discussed in Thread: UCC28070 Editing to remove confidential information

  • PMP4259: UCC28070A

    Part Number: PMP4259 ON WORKBENCH WHEN MAKE DESIGN 3KW 180-260V AC RA1-RA6 CALCULATED 1MOHM 0.75W SIZE 1210 BOUT IN TI REFRNCE PMP4259 USED 1206 0.25W WHICH ONE IS CORRECT IN CALCULATION 1206 0.25W IT IS OK MUST WORK THIS MAKE ME CONFUSED ANOTHER ONE…
    • Answered

  • UCC28070A: UCC28070A one leg is only working

    Resolved
    Part Number: UCC28070A Other Parts Discussed in Thread: UCC28070 I'm stating up a 1500W UCC28070A PFC. Only 1st leg is working nicely. If I remind correctly the second leg is disabled with low power. Only I can't find it anymore in the datasheet. Before…
    • Resolved
    • Answered

  • UCC28070A: Fault Detection Output

    Resolved
    Part Number: UCC28070A My customer system needs a fault detection output (e.g. OVP, UVLO thermal shutdown) of PFC in order to communicate with inverter which is connected to the output of the PFC. Do you have any good idea to get error signal from UCC28070A…
    • Resolved

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