公开(公告)号：US20100097826A1

公开(公告)日：2010-04-22

申请号：US12252828

申请日：2008-10-16

申请人： Ming Xu ,  Bo Yuan ,  Qiao Liong Chen

发明人： Ming Xu ,  Bo Yuan ,  Qiao Liong Chen

IPC分类号： H02M3/335

CPC分类号： H02M3/3378 ,  H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02P80/112

摘要： A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter further includes two transformers electrically connected to the resonant circuit, two synchronous controllers electrically connected to the primary sides of two transformers respectively, and two synchronous rectifiers electrically connected to the secondary sides of two transformers. The input power modified by the resonant circuit is obtained by the primary sides of two transformers, and two induced power are respectively produced at the secondary sides. Then, through sensing the polarity variation of the voltage, the two synchronous controllers individually provide a synchronous driving signal. Furthermore, the synchronous driving signals respectively drive two synchronous rectifiers to conduct alternatively, so as to rectify the induced power to the output terminal.

摘要翻译： 提供了一种用于提高同步整流控制的谐振变换器。 谐振转换器获得输入功率，并且通过开关单元可以修改要传输到谐振电路的输入功率的周期。 谐振转换器还包括电连接到谐振电路的两个变压器，分别与两个变压器的初级侧电连接的两个同步控制器和两个电连接到两个变压器的次级侧的同步整流器。 由谐振电路修改的输入功率由两个变压器的初级侧获得，并且在次级侧分别产生两个感应功率。 然后，通过感测电压的极性变化，两个同步控制器分别提供同步驱动信号。 此外，同步驱动信号分别驱动两个同步整流器交替导通，以便对输出端子的感应功率进行整流。

公开(公告)号：US08014173B2

公开(公告)日：2011-09-06

申请号：US12252828

申请日：2008-10-16

申请人： Ming Xu ,  Bo Yuan ,  Qiao Liong Chen

发明人： Ming Xu ,  Bo Yuan ,  Qiao Liong Chen

IPC分类号： H02M3/335

CPC分类号： H02M3/3378 ,  H02M3/33592 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02P80/112

摘要： A resonant converter for improving synchronous rectification control is provided. The resonant converter obtains an input power, and through a switch unit, the period of the input power to be transmitted to a resonant circuit can be modified. The resonant converter further includes two transformers electrically connected to the resonant circuit, two synchronous controllers electrically connected to the primary sides of two transformers respectively, and two synchronous rectifiers electrically connected to the secondary sides of two transformers. The input power modified by the resonant circuit is obtained by the primary sides of two transformers, and two induced power are respectively produced at the secondary sides. Then, through sensing the polarity variation of the voltage, the two synchronous controllers individually provide a synchronous driving signal. Furthermore, the synchronous driving signals respectively drive two synchronous rectifiers to conduct alternatively, so as to rectify the induced power to the output terminal.

摘要翻译： 提供了一种用于提高同步整流控制的谐振变换器。 谐振转换器获得输入功率，并且通过开关单元可以修改要传输到谐振电路的输入功率的周期。 谐振转换器还包括电连接到谐振电路的两个变压器，分别与两个变压器的初级侧电连接的两个同步控制器和两个电连接到两个变压器的次级侧的同步整流器。 由谐振电路修改的输入功率由两个变压器的初级侧获得，并且在次级侧分别产生两个感应功率。 然后，通过感测电压的极性变化，两个同步控制器分别提供同步驱动信号。 此外，同步驱动信号分别驱动两个同步整流器交替导通，以便对输出端子的感应功率进行整流。