公开(公告)号：US07868724B2

公开(公告)日：2011-01-11

申请号：US11338680

申请日：2006-01-25

申请人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

发明人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

IPC分类号： H01F27/36

CPC分类号： H02M1/12 ,  H01F21/10 ,  H01F27/34 ,  H01F27/362 ,  H02M1/44 ,  H02M2001/123 ,  H03H2001/0092

摘要： The present invention discloses a power converter with low common mode noise. The power converter having a primary side and a secondary side, comprises a transformer having a primary winding and a secondary winding, and at least one electrostatic shield disposed between the primary winding and the secondary winding, wherein the electrostatic shield is configured with partial first region of the primary winding and partial second region of the secondary winding such that the electrostatic shield partially shields with the primary winding and the secondary winding to reach the purpose of suppressing the common mode noise. In addition, another method can be used to reduce the common mode noise of a power converter having primary side and secondary side, which is adding some additional impedance between the static points and jump points of the primary side and secondary side.

摘要翻译： 本发明公开了一种低共模噪声的功率转换器。 具有初级侧和次级侧的功率转换器包括具有初级绕组和次级绕组的变压器，以及设置在初级绕组和次级绕组之间的至少一个静电屏蔽，其中静电屏蔽配置有部分第一区域 的次级绕组的初级绕组和部分第二区域，使得静电屏蔽部分地与初级绕组和次级绕组屏蔽以达到抑制共模噪声的目的。 此外，可以使用另一种方法来降低具有初级侧和次级侧的功率转换器的共模噪声，这在初级侧和次级侧的静态点和跳跃点之间增加一些额外的阻抗。

公开(公告)号：US20100202164A1

公开(公告)日：2010-08-12

申请号：US12761887

申请日：2010-04-16

申请人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

发明人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

IPC分类号： H02M3/335

CPC分类号： H02M1/12 ,  H01F21/10 ,  H01F27/34 ,  H01F27/362 ,  H02M1/44 ,  H02M2001/123 ,  H03H2001/0092

摘要： The present invention discloses a switching power converter with low common mode noise. The switching power converter comprises at least a switch with at least a terminal wherein said switch turning on and off alternatively which generates a plurality of noise voltages, and the noise voltage having a jump point and a static point wherein the jump point is one of said inductive component terminals, the capacitive component terminals and the second and third terminal of the switch; and an additional impedance connected between the static point and the jump point of different noise voltage to neutralize common noise current. In addition, another switching power converter having primary side and secondary side can be used to reduce the common mode noise by adding some additional impedance between the static points and jump points of the primary side and secondary side.

摘要翻译： 本发明公开了一种低共模噪声的开关电源转换器。 开关功率转换器至少包括具有至少一个端子的开关，其中所述开关交替地导通和关断，其产生多个噪声电压，并且噪声电压具有跳变点和静态点，其中跳转点是所述 感应元件端子，电容元件端子和开关的第二和第三端子; 并且连接在不同噪声电压的静态点和跳转点之间的附加阻抗以中和公共噪声电流。 此外，具有初级侧和次级侧的另一个开关电源转换器可以用于通过在初级侧和次级侧的静态点和跳跃点之间增加一些附加阻抗来降低共模噪声。

公开(公告)号：US07898377B2

公开(公告)日：2011-03-01

申请号：US12761887

申请日：2010-04-16

申请人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

发明人： Lin Sicong ,  Zhou Min ,  He Jun Ping ,  Wei Chen ,  Jianping Ying

IPC分类号： H01F27/28

CPC分类号： H02M1/12 ,  H01F21/10 ,  H01F27/34 ,  H01F27/362 ,  H02M1/44 ,  H02M2001/123 ,  H03H2001/0092

摘要： The present invention discloses a switching power converter with low common mode noise. The switching power converter comprises at least a switch with at least a terminal wherein said switch turning on and off alternatively which generates a plurality of noise voltages, and the noise voltage having a jump point and a static point wherein the jump point is one of said inductive component terminals, the capacitive component terminals and the second and third terminal of the switch; and an additional impedance connected between the static point and the jump point of different noise voltage to neutralize common noise current. In addition, another switching power converter having primary side and secondary side can be used to reduce the common mode noise by adding some additional impedance between the static points and jump points of the primary side and secondary side.

摘要翻译： 本发明公开了一种低共模噪声的开关电源转换器。 开关功率转换器至少包括具有至少一个端子的开关，其中所述开关交替地导通和关断，其产生多个噪声电压，并且噪声电压具有跳变点和静态点，其中跳转点是所述 感应元件端子，电容元件端子和开关的第二和第三端子; 并且连接在不同噪声电压的静态点和跳转点之间的附加阻抗以中和公共噪声电流。 此外，具有初级侧和次级侧的另一个开关电源转换器可以用于通过在初级侧和次级侧的静态点和跳跃点之间增加一些附加阻抗来降低共模噪声。