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  • UCC25661: UCC256611的HO波形不能完整建立

    Part Number: UCC25661 输入90V，HV电压41-90V跳变，7脚电压5V（与外部分压无关，拆掉芯片7脚焊盘0.83V），HO波形幅度10-13V变化，LO没有输出，这问题出在什么地方？
    • Answered

  • [参考译文] UCC25661：针对具有大输出电容的 UCC25661 的软启动建议

    已解决
    Other Parts Discussed in Thread: UCC25661 , TL431 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1598892/ucc25661-soft-start-recommendation-for-ucc25661…

  • [参考译文] UCC25661：基于 UCC25661 的全桥 LLC

    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1551790/ucc25661-ucc25661-based-full-bridge-llc 器件型号： UCC25661 工具/软件： 如何使用此 IC 实现全桥 LLC ,有任何应用手册或参考作为指导…
    • Answered

  • [参考译文] UCC25661：UCC25661 的仿真模型

    已解决
    Other Parts Discussed in Thread: UCC25661 , UCC25660 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1552016/ucc25661-simulation-model-for-ucc25661 器件型号…
    • Answered

  • [参考译文] UCC25661：UCC25660 UCC25661

    已解决
    Other Parts Discussed in Thread: UCC25660 , UCC25661 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1533139/ucc25661-ucc25660-ucc25661 器件型号： UCC25661 …

  • UCC25661-Q1: Questions about TEST Pin

    Part Number: UCC25661-Q1 Other Parts Discussed in Thread: UCC25661 The TEST pin can disable the PFC to reduce standby power loss when the LLC enters LF Burst mode. I have two questions: Must the LLC enter LF Burst mode first before the PFC can be disabled…

  • UCC25661: The coexistence issue between Normal mode and HF burst mode

    Part Number: UCC25661 Hello, engineers from Texas Instruments. Recently, while working with the UCC25661, I encountered an issue. As the load gradually increases, the power supply exits HF burst mode and is about to enter normal…

  • [参考译文] UCC25661：UCC25661 LLC 转换器–空载时无输出（申请设计审查和放大器；调试指南）

    Other Parts Discussed in Thread: UCC25661 请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1580743/ucc25661-ucc25661-llc-converter-no-output-at-no-load…
    • Answered

  • UCC25661: After exiting HFburst, the normal switching waveform exhibits severe amplitude fluctuations.

    已解决
    Part Number: UCC25661 Hello, engineer from TI. Today I used a DC power supply set to 410V as the input voltage for the LLC converter. At a 4A load, the supply was still operating in HF burst mode. When I increased the load to 5A, the waveform shown below…
    • Answered

  • [参考译文] UCC25661：HV 串联电阻器选型

    已解决
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1631411/ucc25661-hv-series-resistor-selection 器件型号： UCC25661 尊敬的团队： 输入电压范围：270V 至 360V。 输出电压：60V。 …

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