A bi-directional LLC converter includes: first and second sides coupled by an isolation transformer, the first side including a switch network connected to an LLC network, the LLC network including a first winding of the isolation transformer, the second side including a switch network connected to a second winding of the isolation transformer; and a controller operable to operate the LLC converter in a forward mode in which the first side functions as an inverter and the second side functions as a rectifier, and to operate the LLC converter in a reverse mode in which the second side functions as an inverter and the first side functions as a rectifier. In the reverse mode, the controller is operable to delay turn off of the switch network on the first side at an operating frequency above resonance of the LLC converter, to yield a gain greater than one in the reverse mode.


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    Title :

    Bi-directional LLC Converter



    Publication date :

    2021-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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