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Showing 138 results View by: Thread Post Sort by
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    TI Thinks Resolved
    Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCC28180 Hello, experts in the UCD3138PFCEVM-026 evaluation board, why is the boost inductor parameter 327uH? According to the design parameters of the evaluation board, the calculated boost…
    • Resolved
    • 12 days ago
    • Power management
    • Power management forum
  • UCD3138PFCEVM-026: UCD3138 single phase PFC

    Mownika Gudupuru
    Mownika Gudupuru
    TI Thinks Resolved
    Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCD3138 Hi Team, I am designing UCD3138 Single phase PFC for 2KW power rating. The compensation is done and stable system is os obtained. I want to know about the Gain margin of the system…
    • 10 days ago
    • Power management
    • Power management forum
  • UCD3138PFCEVM-026: UCD3138 single phase pfc

    Mownika Gudupuru
    Mownika Gudupuru
    TI Thinks Resolved
    Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCD3138 Hi , I have read the document of UCD3138 guide. Could you please specify the controller pin values of Irect_fdbk, Vline_sense, Vbus_fdbk ,Vneu_sense ?? My power rating is 2KW so I…
    • 22 days ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: DIodes used in sensing circuits

    SJZ
    SJZ
    Resolved
    Part Number: UCD3138PFCEVM-026 Hello, May I know why this circuit is connected along with the resistor divider at the input voltage sensing(both line and neutral) ? Regards,
    • Resolved
    • 21 days ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    Resolved
    Part Number: UCD3138PFCEVM-026 Hello expert There is a double power frequency ripple on the output voltage of Boost PFC, which will affect the reference current waveform calculated in the dual-loop control. How do you deal with this in the program? I have…
    • Resolved
    • 5 months ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    Resolved
    Part Number: UCD3138PFCEVM-026 Hello expert For the UCD3138PFCEVM-026 evaluation board, I see in your information that the duty cycle feedforward method is used to reduce the input current THD. Is there any code for this method in the PFC source program…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    Resolved
    Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: TEST Hello expert What is the function of AC Drop Detection below? And when the input voltage is at the zero-crossing point, when the input current produces a large THD, how is the program…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026 DESIGN FILE

    user6001565
    user6001565
    Resolved
    Part Number: UCD3138PFCEVM-026 Other Parts Discussed in Thread: UCD3138CC64EVM-030 Hi Sir: the pcb picture in SLUU885B is not clear, I want to check how agnd,dgnd,pgnd are connected together so we can do it same way in our product; Can you please send me…
    • Resolved
    • 6 months ago
    • Power management
    • Power management forum
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    TI Thinks Resolved
    Part Number: UCD3138PFCEVM-026 Hello expert When I use UCD3138PFCEVM-026, I select single-phase PFC mode, the input AC is 115V, and LED3 will be red when power is on. What is the cause of the error?The load is 500 ohms.The program comes from TI's official…
    • 7 months ago
    • Power management
    • Power management forum
  • Answered
  • UCD3138PFCEVM-026: UCD3138PFCEVM-026

    xiaoxiao xiaoxiao
    xiaoxiao xiaoxiao
    Resolved
    Part Number: UCD3138PFCEVM-026 Hello expert Excuse me, in the official download of the UCD3138PFCEVM-026 evaluation version of the source program, if I want to select the single-phase PFC function mode, in the program, in addition to changing the following…
    • Resolved
    • 7 months ago
    • Power management
    • Power management forum
>

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