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    • 10. 发明授权
    • Two-stage insulated bidirectional DC/DC power converter using a constant duty ratio LLC resonant converter
    • 两级绝缘双向DC / DC电源转换器采用恒功率LLC谐振转换器
    • US08467199B2
    • 2013-06-18
    • US12832656
    • 2010-07-08
    • Jun-Young LeeYu-Seok JeongHyung-Jun ChaeKwang-Min YooJae-Jin ChangJae-Ha Chang
    • Jun-Young LeeYu-Seok JeongHyung-Jun ChaeKwang-Min YooJae-Jin ChangJae-Ha Chang
    • H02M3/335
    • H02M3/33584H02M2001/007Y02B70/1433Y02P80/112
    • A two-stage insulated bidirectional DC/DC power converter is disclosed. A two-stage insulated bidirectional DC/DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio.
    • 公开了一种两级绝缘双向DC / DC电力转换器。 根据本发明的实施例的两级绝缘双向DC / DC电力转换器具有包括:以恒定占空比工作的LLC谐振变换器的特征; 连接到LLC谐振转换器的前部的双向转换器,并且被配置为执行用于为LLC谐振转换器输出一致输入电压的输入电压的升压转换器功能,以及降压转换器功能,其通过 LLC谐振变换器,然后输出一致的电压; 以及双向转换器控制单元,被配置为控制所述双向转换器的输入电压的变化并调节所述LLC谐振变换器的输出电压,从而保持所述LLC谐振变换器的一致的输入电压,使得所述LLC谐振变换器在 恒功率