Power conversion device and control method thereof

TWI940953BActive Publication Date: 2026-10-01LITE ON TECH CORP
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Patent Information

Application Number
TW113138292
Authority / Receiving Office
TW · TW
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2026-10-01
Estimated Expiration
2044-10-07

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  • Figure TWG2TB001913584_001
    Figure TWG2TB001913584_001
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    Figure TWG2TB001913584_002
  • Figure TWG2TB001913584_003
    Figure TWG2TB001913584_003
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Abstract

This invention provides a power conversion device and its control method. The power conversion device includes a power factor correction circuit, an LLC converter coupled to the power factor correction circuit, and a controller coupled to the power factor correction circuit and the LLC converter. The power factor correction circuit outputs a DC voltage and a ripple voltage of the DC voltage. The LLC converter receives the DC voltage and outputs an output current. The controller receives the ripple voltage and the output current and generates a plurality of switching control signals to the LLC converter. The controller compensates for the output current based on the ripple voltage to adjust the switching control signals.
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Citation Information

Patent Citations

  • A power factor correction circuit and vehicle charger

    CN110277904B

  • Passive power factor correction converter with high power factor and low output ripple

    CN112803747A

  • AC-DC converter and controller thereof

    CN116094346A

  • Three-phase soft-switched pfc rectifiers

    TW201332267A

  • LLC resonant converter

    TW202220356A