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    • 2. 发明申请
    • MULTIPHASE RESONANT CONVERTER FOR DC-DC APPLICATIONS
    • 用于DC-DC应用的多相谐振转换器
    • US20080298093A1
    • 2008-12-04
    • US12130102
    • 2008-05-30
    • Taotao JinKeyue Smedley
    • Taotao JinKeyue Smedley
    • H02M7/06H02M3/335
    • H02M3/285H02M2001/0058Y02B70/1491
    • The various embodiments and example provided herein are generally directed to novel multiphase resonant converters. In an embodiment, a multiphase resonant converter comprises N unit resonant converters having inputs and outputs connected in parallel, respectively. Each unit converter comprises an inverter, a LLC series resonant tank, and a rectifier. In a preferred embodiment, the inverters of the N unit converters are driven by N drive signals phase-shifted 2π/N degrees apart. During operation, the current of the multiphase converter is shared among the unit converters, resulting in a smaller current in each unit converter. The smaller current in each unit converter reduces conduction losses, thereby increasing the efficiency of the multiphase converter. In addition, the smaller current in each unit converter reduces the amount of stress placed on individual components of the converter allowing for the use of lower tolerance components. Further, the multiphase converter has automatic current sharing ability.
    • 本文提供的各种实施例和示例通常涉及新颖的多相谐振转换器。 在一个实施例中,多相谐振转换器包括分别并联连接的输入和输出的N个单元谐振转换器。 每个单元转换器包括一个反相器,一个LLC串联谐振回路和一个整流器。 在优选实施例中,N个单元转换器的反相器由相互移位2pi / N度的N个驱动信号驱动。 在运行期间,多相转换器的电流在单元转换器之间共享,导致每个单位转换器中的电流较小。 每个单位转换器中的较小的电流降低了传导损耗,从而提高了多相转换器的效率。 此外,每个单元转换器中的较小电流可减少放置在转换器的各个组件上的应力的数量,从而允许使用较低公差的组件。 此外,多相转换器具有自动分流能力。