服务热线:
纳米晶共模电感铁CMC Core s (—)
一、产品介绍 (Introduction):
按照客户对铁芯产品不同的磁性能要求，选取合适成分和等级带材卷绕成所需规格铁芯，在保护气氛中进行磁场热处理，获取磁性能满足客户要求的纳米晶态铁芯，按客户要求进行封装保护。
AT&M will select ribbon with suitable composition and level to wind cores based the performance requirements from customers.Then cores will be annealed in magnetic field to meet customers' requirements.Finally cores will be packaged according to customer's requirements.
二、产品特点 (Characteristic):
一高饱和磁感应强度-有效缩小共模电感体积
High saturate induction—reduce volume of CMC
一优良的阻抗-频率特性
Excellent impedance frequency characteristic
—突出的抗不平衡电流能力
Outstanding ability to resist unbalanced current
—优良的温度稳定性
Excellent thermal stability
三、产品应用 (Application):
与铁氧体相比较，纳米晶具有更高的居里温度，即使在高达180℃的高温时，也能可靠地工作；纳米 晶具有更高的磁导率和更高的饱和磁感应强度，纳米晶铁芯可以大幅减少重量、体积，铜绕组的功率损耗 通常为铁氧体的50-70%。适用于变频驱动、EV控制器、变频空调、液晶电视、电陶炉等消费电子设备，同 时也适用于逆变焊机等工业电源领域的EMC治理。
Nanocrystalline alloy has higher Curie temperature compared with ferrite and can stably work even at 180℃;It has higher permeability and saturated inductance.The weight and volume of the nanocrystalline cores are reduced.Usually,the power loss of copper windings is only 50-70% of ferrite.Nanocrystalline cores are widely applied to variable frequency drive,EV controller, air-conditioner,LCD TV,induction cooker and other consumer electronics as well as EMC solution of industrial power supply such as welding machines.
1.电动汽车/混合动力汽车(EV/PHEV)
2.变频空调(Variable frequency air conditioner)
3.电磁炉(Induction Cooker )
4.逆变焊机 (Inverter welding machine)
四 、不同带厚纳米晶铁芯损耗对比：
五 、纳米晶与铁氧体铁芯性能对比 (Magnetic PerformanceComparison Between Nanocrystalline and Ferrite Cores):
基本性能对比 (Basic performance comparison)
六 、应用原理及实例介绍 (Principle and practical application):
1.变频传动变频器 (Variable-frequency Drive Device)
变频器是应用变频技术与微电子技术，通过改变电机工作电源频率方式来控制交流电动机的电力控制 设备。变频器主要由整流(交流变直流)、滤波、逆变(直流变交流)、制动单元、驱动单元、检测单元、 微处理单元等组成。变频器靠内部IGBT的开断来调整输出电源的电压和频率，根据电机的实际需要来提供 其所需要的电源电压，进而达到节能、调速的目的，随着工业自动化程度的不断提高，变频器也得到了非 常广泛的应用。低磁导率纳米晶大共模电感铁芯适用于≤1000V 的低压变频器，能有效抑制变频器产生的 共模干扰。
Frequency converter is electricity control equipment which uses variable and micro electronics technologies to control an AC motor through changing frequency of power supply for the motor. It is composed of rectifier(AC-DC),filters,inverters(DC-AC),brake unit,drive unit,test unit,micro-processing unit,etc.It adjusts the output voltage and frequency by switching
internal IGBT and provides required power supply voltage for energy conservation and speed control.
It is widely applied as the industrial automation improves continuously.Low-frequency common mode choke cores are used for low voltage inverter(≤1000V)and effectively suppress the interferences.
· 交流低压交直流通用变频器系统框图(Block diagram ofAC low voltage AC/DC converter)
2.光伏发电逆变器 (PV Inverter)
适用于500kW、1MW大功率集中式光伏逆变器。高磁导率大共模电感铁芯适用于大功率光伏逆 变器交流侧 EMC 滤波，利用铁芯的高电感能有效减少铁芯数量达到很好的滤波效果；低磁导率大共模电感 铁芯适用于大功率光伏逆变器直流侧EMC滤波，该类铁芯电感频率特性好，能有效抵抗不平衡直流分量， 避免铁芯饱和造成的烧毁。
AT&M CMC Cores are applied to 500KW&1MW centralized PV inverters.High-permeability CMC Cores are applied to EMC filters near to AC output of high-power PV inverters.The better EMI suppression effect can be reached by less quantity of CMC cores due to high induction performance.Low- permeability CMC cores are applied to EMC filters near to DC output of high-power PV inverters. Low-permeability CMC cores have excellent inductance performance depend on frequency and effective anti-DC bias performance to avoid the damage from saturated inductance.