公开(公告)号：KR1020100092157A

公开(公告)日：2010-08-20

申请号：KR1020090011387

申请日：2009-02-12

Applicant: 삼성전기주식회사

Inventor： 김종해 ,  오동성 ,  장대민 ,  김진욱 ,  이일운 ,  원재선 ,  에를란 ,  드미트리

IPC: H02M1/44 ,  H02M1/12 ,  H02M3/28

CPC classification number: H02M1/44 ,  H01F27/38 ,  H01F27/42 ,  H02M3/335

Abstract: PURPOSE: A power converter transformer for suppressing conduction EMI is provided to reduce conduction EMI by adding an auxiliary winding and an auxiliary capacitor. CONSTITUTION: A primary winding(Np) is arranged in a primary side. A secondary winding(Ns) is coupled with the primary winding. A parasitic capacitor(Cp) is connected between the one end of the primary winding and the one end of the secondary winding. A switching unit(Q) is connected to the other end of the primary winding. An Y- capacitor(Cy) is connected between the switching unit and a ground terminal. An auxiliary winding(Na) is coupled with the secondary winding. The auxiliary capacitor(Ca) is connected between the one end of the primary winding and the auxiliary winding.

Abstract translation: 目的：提供用于抑制传导EMI的电源转换器变压器，通过添加辅助绕组和辅助电容来降低传导EMI。 构成：初级绕组（Np）布置在初级侧。 次级绕组（Ns）与初级绕组耦合。 寄生电容器（Cp）连接在初级绕组的一端和次级绕组的一端之间。 开关单元（Q）连接到初级绕组的另一端。 Y电容（Cy）连接在开关单元和接地端子之间。 辅助绕组（Na）与次级绕组耦合。 辅助电容器（Ca）连接在初级绕组的一端和辅助绕组之间。