An LLC power converter comprises a switching stage and a resonant tank, the switching stage configured to switch an input power at a switching frequency to apply a switched power to the resonant tank, and the resonant tank includes a resonant inductor, a resonant capacitor, and a parallel inductance. A transformer has a primary winding connected to the resonant tank and a secondary winding. A synchronous rectifier (SR) switch is configured to selectively switch current from the secondary winding to supply a rectified current to a load. An RC filter includes a filter capacitor and a filter resistor connected across the SR switch, with the filter capacitor defining a filter capacitor voltage thereacross. A rectifier driver is configured to drive the SR switch to a conductive state in response to the filter capacitor voltage being less than a threshold value.


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    Titel :

    METHOD AND SYSTEM USING A NOISE FILTER TO DRIVE SYNCHRONOUS RECTIFIERS OF AN LLC DC-DC CONVERTER


    Beteiligte:
    ZHOU XIANG (Autor:in) / LIU WENBO (Autor:in) / SHENG BO (Autor:in) / CHEN YANG (Autor:in) / YUREK ANDREW (Autor:in) / LIU YAN-FEI (Autor:in) / IYER LAKSHMI VARAHA (Autor:in) / SCHLAGER GERD (Autor:in) / NEUDORFHOFER MICHAEL (Autor:in) / BAECK WOLFGANG (Autor:in)

    Erscheinungsdatum :

    31.03.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




    LOOK-UP TABLE BASED EFFICIENCY TUNED CONTROL OF SYNCHRONOUS RECTIFIERS IN A DC/DC CONVERTER FOR ELECTRIC VEHICLES

    NIE ZHONG / ZHANG MENGYANG / KROZEK DENNIS et al. | Europäisches Patentamt | 2016

    Freier Zugriff

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