共模电感及原理应用.ppt

Common Mode Choke共模扼流圈 comparison different power line common mode chokes 比较不同功率的共模扼流圈 0 1 2 3 4 5 6 current [A] 7 8 9 10 11 12 WE-LF 0,4mH 47mH 0,68mH 47mH 1,8mH 47mH 1,8mH 27mH Typ S Typ M Typ L Typ XL WE-LFSMD 0,7mH 47mH Typ S WE-FC 0,82mH 33mH Typ S 14μH 100μH Typ M WE-CMB NiZn WE-CMB 1mH 39mH 1mH 20mH 1mH 20mH 1mH 20mH 1mH 20mH Typ XS Typ S Typ M Typ L Typ XL 0,5mH 1,8mH 14 - 35A Typ XXL Common Mode Choke共模扼流圈 comparison common mode chokes CMB – CMB NiZn CMB共模扼流圈的比较CMB – CMB NiZn CMB NiZn CMB Common Mode Choke共模扼流圈 comparison common mode chokes CMB – LF – FC共模扼流圈比较CMB – LF – FC FC :Horizontal FC:Vertical LF : 27mH FC :22mH (Horrizontal) FC:22mH ( Vertical) CMB:20mH ? WE-FC has higher impedance in common differential mode ? WE-FC 在共模和差模形式有较高的阻抗 Common Mode Choke – Overview共模扼流圈-概述 Current compensated chokes @ Würth Elektronik 电流补偿扼流圈 @ 伍尔特电子 für 115 / 250VAC / max. 35A Sectional winding传统绕线 信号/数据线 Umax. = 80VDC / I up to 2,5A THT WE-LF WE-CMB THT SMT sectional bifilar Common mode ferrite brigde 6-hole-ferrite bead 共模铁氧体桥 6-孔-铁氧体磁珠 WE-SL series WE-CNSW WE-SL series WE-SL series WE-CNSW WE-FC WE-CMB NiZn SMT WE-LF SMD COMPETITORS APPLICATIONS 竞争对手 应用 Common Mode Choke共模扼流圈 Ask PM before offering 报价前询问PM customized parts定制品 Common Mode Choke共模扼流圈 Who to make Xref?谁来制成 Xref? easy way 简单途径 : If not in Alpha plan如果不在 Alpha plan系统 check the packaging first and look the our closer box check the current check the impedance or inductance value take care of the differential mode impedance (bifilar or sectional winding) check the layout ? 先核对包装然后看我们接近 ? 核对电流 ? 核对阻抗和电感值 ? 考虑不同阻抗模式 (双绞线 or 分段绕法) ? 核对布线 STRG + SHIFT + W Common Mode Choke 共模扼流圈 different definition for inductance and curren t电感和电流的不同定义? WE-FC EPCOS B82731 Common Mode Choke 共模扼流圈 different definition for inductance and current 电感和电流的不同定义? WE-FC EPCOS B82731 Lmin LN + 50% L [mH] eiSos Définition 0,8 0,9 1 1,1 1,2 1,3 0,7 1,4 1,5 1,6 1,7 Epcos Définition - 30% Common Mode Choke – A