【应用】Laird CM7060系列共模电感,可有效抑制在车载空调压缩机控制板的弱电部分的共模干扰
在电子电路中,由于外界电磁场或者所接的地电位不同时,常常会产生共模干扰,而在电路中,我们需要放大的是差模信号,如果共模刚干扰信号增益过大,则会影响电路工作点和输出摆幅。
为了消除共模干扰,工程师通常会使用共模电感搭配电容来消除共模干扰,在不同电路中工程师选择的共模电感也会不同,例如在车载空调压缩机控制板弱电部分,就有工程师选用LAIRD的CM7060N102R-10这颗共模电感来抑制共模干扰。
在车载空调压缩机控制板设计中,由于控制板尺寸较小,所以注定无法放置尺寸较大的共模电感,但其电流又有1-2A左右,所以对共模电感的额定电流也有一定要求,Laird的CM7060N102R-10这颗产品尺寸仅7.0*6.0mm,额定电流可达3A,而且单线直流电阻仅17mΩ,可大大减小电路中的损耗,在100MHz频率时,其共模干扰在800Ω以上,具体如下图所示。
Laird的CM7060系列目前共有6个规格(如下表所示),CM7060W101R-10额定电流可达9A。
CM7060系列共模电感主要特点:
l 适用于9A以下大电流的共模滤波器
l 优良的共模阻抗和噪声抑制
l 紧凑的尺寸
l 操作温度-40到125(包含自热)
l AEC-Q200合格
CM7060系列共模电感的应用范围:
l 电力线路的应用
l 工业设备
l 医疗设备
l 适配器噪声抑制
l 电池线路
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目录- 密封变压器 带PTC保护的密封变压器 电抗器 高频变压器 共模电感器 工字型电感器 电流互感器 高精度电流互感器 低频电压器 环形变压器 平面变压器 产品客制能力
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CAN总线设计时,一定离不开三要素,分别是:CAN控制芯片、CAN收发器、EMC&ESD保护器件。其中CAN控制芯片输出逻辑电平(0或1),CAN收发器将逻辑电平转换成差分信号(CAN_H、CAN_L)输出。同时,为保证CAN总线的可靠传输,外围电路必须考虑EMC及抗干扰问题,本文主要介绍 工业CAN总线外围电路设计,以及EMC&ESD器件参数选型和推荐。
设计经验 发布时间 : 2018-03-22
汽车以太网共模对车载以太网的重要性
随着汽车行业朝着电动趋势发展,摄像头、雷达、传感器等设备的设备使用场景越发广泛,对高速数据传输的需求也愈发依赖。而车载以太网具有低延迟、高带宽的特性可以满足高速、大容量数据传输,进一步支持高级智能驾驶功能的同时显著减小车身重量和整体线束成本,在现在及未来都会占据汽车通信总线的一席之地。本文中韬略科技来为大家介绍汽车以太网共模对车载以太网的重要性,希望对各位工程师朋友有所帮助。
设计经验 发布时间 : 2024-10-26
车载以太网降噪措施的必要性及共模选型标准
随着汽车行业朝着电动趋势发展,摄像头、雷达、传感器等设备的设备使用场景越发广泛,对高速数据传输的需求也愈发依赖。而车载以太网具有低延迟、高带宽的特性可以满足高速、大容量数据传输,进一步支持高级智能驾驶功能的同时显著减小车身重量和整体线束成本,在现在及未来都会占据汽车通信总线的一席之地。本文韬略科技来为大家介绍车载以太网降噪措施的必要性及共模选型标准,希望对各位工程师朋友有所帮助。
技术探讨 发布时间 : 2024-10-23
铭普光磁(Mentech)扁平线电感和平板变压器选型指南
目录- Planar Transformer/Planar Inductor/Automotive Inductor Selection Table Planar Transformer Planar Inductor Aircore Inductor Common-mode Inductor Power Inductor
型号- EIR20-009SG,MHW2615HBSG4R7K,EIR-005SG,MHW1306SG1R0M,TPEIR30-0067SG,EIR30-007SG,EIR25-006SG,TPEIR18-0197SG,MHW2720SG6R8K,TPEIR25-0179SG,MHW2714SG351K,CMB8020DG221U,MHW3028DG130J,MHW1812DG100J,MHW1306SGR60M,TPEIR25-0005SG,MHW2618HBSG220K,MHW2615HBSG6R8K,MHW1807SG2R0KA,EIR30-014SG,TPEIR20-0177SG,TPEIR18-0030SG,EIR20-015SG,EIR30-012SG,MHW2615HBSG100K,MHW2615HBSG330K,MHW3011SG7R0KA,TPER30-0010SG,MHW2114SG270K,MHW2618HBSG150K,MHW2618HBSG3R3K,TPEIR19-0150SG,EIR25-007SG,MHW2009SG7R0KA,TPER51-0160SG,MHW2615HBSG220K,TPEIR31-0198SG,CMB3229DG121U,MHW2618HBSG4R7K,TPEIR25-0063SG,MCEP125SG1R0M,MHW2910SG300K,TPEIR18-0030DG,TPEIR34-0066SG,MHW2618HBSG100K,MHW2618HBSG330K,MHW2511DG9R5J,EIR20-01DG,MHW1807SG4R0K,MHW2615HBSG2R2K,MHW5528TG103K,EER25-003SG,MHW2615HBSG3R3K,TPEIR25-0114SG,EIR30-011SG,CMB10025DG421U,MHW2615HBSG150K,TPEIR34-0230DG,MHW2618HBSG6R8K,MSCB2822SG4R5U,TPEIR30-0058SG,TPEIR32-0222SG
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