公开(公告)号：US08243475B2

公开(公告)日：2012-08-14

申请号：US12603620

申请日：2009-10-22

申请人： LiuChun Zhou ,  Zhong Zeng ,  Xin Guo ,  Ji Li ,  ZhiHong Ye

发明人： LiuChun Zhou ,  Zhong Zeng ,  Xin Guo ,  Ji Li ,  ZhiHong Ye

IPC分类号： H02M3/335

CPC分类号： H02M3/33592 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491

摘要： Provided is a resonance converting apparatus. The resonance converting apparatus preferably includes a resonant circuit, a bridge-type converter, and a synchronous rectification circuit. In which the resonant circuit has a transformer. The bridge-type converter connects with a primary side of the transformer, and operates open or close according to a switching signal. The synchronous rectification circuit further includes a pair of rectification transistors and driving circuits. The driving circuits correspondingly connect with channels to the rectification transistors, and respectively examine the current passing through the rectification transistors. A sensing signal is then generated. In accordance with the switching signal and the sensing signal, a driving signal is generated for driving the rectification transistor. Consequently the apparatus can raise the efficiency of the resonance converting apparatus.

摘要翻译： 提供了一种谐振转换装置。 共振转换装置优选地包括谐振电路，桥式转换器和同步整流电路。 其中谐振电路具有变压器。 桥式转换器与变压器的初级侧相连，根据开关信号开启或关闭。 同步整流电路还包括一对整流晶体管和驱动电路。 驱动电路相应地将通道连接到整流晶体管，并分别检查通过整流晶体管的电流。 然后产生感测信号。 根据开关信号和感测信号，产生用于驱动整流晶体管的驱动信号。 因此，该装置可以提高谐振转换装置的效率。