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合金金属磁粉心(中英文对照+++2005-11-18)

材料特性: 1)磁导率:35、60、 75 2)形状:环形, SMD形 3)高饱和磁通密度。 4)优异的直流叠加特性 5)良好的频率特性,工作频率可以达到3M以上
新开发产品(MF系列材料) Developing Product (2)
Material Characterist1) 1)Permeability: 35、60、 75 2)Shape: Toroidal, SMD 3) High Saturation Flux Density 4)Excellent DC Bias (working current up to tens of ampere) 5) Good Frequency Property. 6) Core loss lower than iron powder core(For example:50kHz/1000Gs, Core Loss <1500 mw/cm3) 7)No thermal aging problem
-(mT) (℃)
26/35/60/75/90/125
1000 >400 <400 (-40℃~125℃) -55~200 850
10-6/℃
℃ mW/cm3
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China dmegc
Soft Ferrite Cores Division
铁硅铝磁粉心应用
Sendust Powder Core Application
1. 2. 3. 4. 5. 6.
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AL=40~120nH/N2 Work Current :5A~30A No thermal aging Problem Low Core Loss(lower than IPC and –60material of MM) Good DC bias. Excellent frequency property.
Advantage 1)Low Profile 2)Low Core Loss 3)High saturation Flux Density 4)Excellent DC Bias 5)Frequency range up to more than 3M 6)High Internal Resistance(IR) more than 50MΩ 7)IR having stability of time and temperature. 8)Shield Construction 9)Material can work in 200℃
7)Lower permeability than Ferrite. The permeability is from tens to hundreds.
page China dmegc
Soft Ferrite Cores Division
Alloy Powder Core
DMEGC可以生产四种合金磁粉心 DMEGC produce 4 kinds of alloy powder core
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China dmegc
Soft Ferrite Cores Division
Integration molding Alloy Powder Core (FR)
特点: 1)体种小 2)低损耗
新开发产品(一体式电感) Developing Product (1)
3)高饱和磁通密度
4)良好的直流叠加特性 5)良好的频率特性,工作频率可以达到3M以上 6)此品漏磁少。 7)产品高阻抗,可以超过50MΩ 8)产品阻抗温度稳定性好 9)材料可以在200C下工作
1)Evenly distributed gap in the core made of ferrous material. 2) High inductance stability under different condition, such as temperature and magnetizing force. 3)Excellent DC Bias characteristics 4)High energy-storage capacity. 5)High saturation flux density. More than twice than Ferrite core. 6)Core loss higher than Ferrite core
Soft Ferrite Cores Division
合 金 磁 粉 心
Alloy Powder Core
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China dmegc
Soft Ferrite Cores Division
Characteristic of Powder Core
材料特性
1)金属磁粉心由铁磁性物质组成,内部有均匀分布的气隙。 2)良好的稳定性。 3)良好的直流叠加特性 4)高储能能力 5)饱和磁通密度是铁氧体材料的二倍以上。 6)损耗高于铁氧体磁心 7)磁导率低于铁氧体磁心,一般磁导率从几十到几百。
1 Evenly distributed gap in the core made of ferrous material . 2.Bs is about 7000Gs,Lower than Sendust 1.0T and Hi-Flux 1.3T. 3.Lowest Core Loss all of powder core 4.Excellent DC Bias/High Storage Energy. 5.Good temperature stability. 6.Good environment stability 7.No thermal aging problem working in high temperature.
1 Sendust core (铁硅铝) 2 MPP core 3 Hi-flux core 4 Ma-Flux core (铁镍钼) (铁镍) (铁基合金)

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China dmegc
Soft Ferrite Cores Division
铁硅铝材料特性
Sendust Powder Core Material
page China dmegc
Soft Ferrite Cores Division
MPP材料特性
MPP Powder Core Characteristic
Characteristics Initial Permeability (μ0) Saturation Magnetic Flux Density (Bs) Curie Temperature (Tc) Temperature Coefficient (αL) Temperature Range(温度范围) Unit -(mT) (℃) 10-6/℃ ℃ Parameter 60~125 700 >400 <250 (-40℃~125℃) -55~200
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China dmegc
Soft Ferrite Cores Division
铁硅铝特性参数
Sendust Powder Core Characteristic
Characteristics Unit Parameter
Initial Permeability (μ0)
Saturation Magnetic Flux Density (Bs) Curie Temperature (Tc) Temperature Coefficient (αL) Temperature Range(温度范围) Core Loss (Pv) (100kHz/100mT)
200
400
600
800
1000
1200
1400
1600
F lu x D e n s ity (m T )
T im e (H o u r)
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China dmegc
Soft Ferrite Cores Division
High temperature Material(Macro-flux)(MF)
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China dmegc
Soft Ferrite Cores Division
FR20材料特性曲线
FR material – FR20 Characteristic Curve
5000
200 180
E x p e rim e n t C o n d itio n :1 5 0 ?
1000
k 50
Core Loss (Pv) (100kHz/100mT)
mW/cm3
600
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China dmegc
Soft Ferrite Cores Division
MPP Powder Core Application (应用)
1.开关电源(SMPS)中输出电感器。 2.高Q滤波器。 3.谐振电感。 4.单端反激变压器。 5.精密电路中 1 2 3 4 5 SMPS output Inductor High Q filter Resonance Inductor Flyback Transformer Precision Instrument
1.APFC电感。 2.在线噪声滤波器。 3.开关电源(SMPS)中电感器。 4.脉冲变压器及单端反激变压器。
1.APFC inductor. 3.SMPS regulator.
2.On-line filter. 4.Flyback transformer.
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China dmegc
Soft Ferrite Cores Division
1. 磁心内有均匀分布的气隙。 2.饱和磁通密度可以达到10000Gs。 3.良好的直流叠加特性。 4.低的功率损耗,低于铁镍磁心与铁粉心。 5.在高温下使用,产品不存在失效问题。
6.在25℃以上工作时,电感具有负的温度系数。
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