Power converter transformer for suppressing conduction EMI and power supply having its transformer
    3.
    发明授权
    Power converter transformer for suppressing conduction EMI and power supply having its transformer 有权
    用于抑制传导EMI的电源转换器变压器及其变压器的电源

    公开(公告)号:US07876581B2

    公开(公告)日:2011-01-25

    申请号:US12407081

    申请日:2009-03-19

    IPC分类号: H02M3/335

    摘要: In accordance with the present invention, a power converter transformer for suppressing conduction EMI (ElectroMagnetic Interference) includes a primary winding positioned at a primary side; a secondary winding positioned at a second side and coupled with the primary winding; a parasitic capacitor connected between one end of the primary winding and one end of the secondary winding; a switching unit connected to the other end of the primary winding; a Y-capacitor connected between the switching unit and a ground terminal; an auxiliary winding positioned at the secondary side and coupled with the secondary winding; and an auxiliary capacitor connected between the one end of the primary winding and the auxiliary winding.

    摘要翻译: 根据本发明,用于抑制传导EMI(电磁干扰)的功率转换变压器包括位于初级侧的初级绕组; 位于第二侧并与初级绕组耦合的次级绕组; 连接在初级绕组的一端和次级绕组的一端之间的寄生电容器; 连接到所述初级绕组的另一端的开关单元; 连接在开关单元和接地端子之间的Y电容器; 辅助绕组定位在次级侧并与次级绕组耦合; 以及连接在初级绕组的一端和辅助绕组之间的辅助电容器。