SENDUST
(Fe-Si-Al)
Mega Flux
(Fe-Si)
Iron
(Fe)
Strip/帶材 Fe-Si/硅鋼
Amorphous/非晶 Permalloy/破莫合金
1. Toroidal Core/環形
2. What is Powder Core ? /磁粉芯介紹
Powder Cores are distributed air gap cores made from ferrous alloy powders for low losses at elevated frequencies. Small air gaps distributed evenly throughout the cores increase the amount of DC that can be passed through the winding before core saturation occurs.

Core Design
8. Winding
(2) Split Winding/分開繞線 • Purpose : Minimize Stray Capacitance &Good High Freq. Response/高頻響應 • Two Layer Winding & Two Split Winding, Three Layer Winding &Three Split Winding
-CSC-
1. Toroidal Core/環形
1. Soft Magnetic Materials/軟磁材料
Soft Magnetic Materials Ferrite/鐵氧體
Metals/金屬
Powder/粉末

MPP
(Ni-Fe-Mo)
High Flux
(Ni-Fe)
磁粉
渦流
絕緣層&GAP

3. Manufacturing process/生產流程 3. Manufacturing process/生產流程
制粉
絕緣處理
壓制
燒制
Material/材料
Composition/合金成份
High Flux : CH Ni + Fe Alloy/鎳鐵合金

2. Special Shape Powder Core
Ni-Fe alloy
Khaki Color Lower Core Loss,Excellent DC Bias
Large Energy Storage Capability Perm 26, 60, 125, 147, 160u
6. Core Selection Chart (Toroidal) /選擇曲線
• Energy Storage Capacity : LI2 [L=Inductance(mH), I=Current(A)]

1. Toroidal Core
7. Inductor Design Tool/電感設計工具
Part No. CH330060 CH330060E14 CH330060E18
CH330060 2Stack
B.F HT 10.67mm 14.0mm 18.0mm
10.67mm X2
AL Value 61mH 80mH 103mH
61 x 2 =122mH
Storage Capacity 25 32 42 50

Core Design
5. Core Design Required Information/設計需求資料 (1) Inductance[μH or mH], Current [A]/電感量及電流
For Calculating LI2, Core Loss, Wire Size, Copper Loss 用來計算LI2,磁損,線徑,銅損 (2) Current Density (A/cm2 or A/mm2)/電流密度 For Calculating Wire Size, Copper Loss 用來計算線徑,銅損
EQ CORE
EER CORE
High Flux Cores
BLOCK CORE
Ni-Fe-Mo alloy
Gray Color Lowest Core Loss Excellent Temperature Stabiliy Perm 26, 60, 125, 147, 160, 173, 200u
MPP Cores
Ellipse CORE
Sendust Cores
Fe-Si-Al alloy
Black Color Low Core Loss Moderate Price Perm 26, 60, 75, 90, 125u

Mega Flux Cores
EE CORE
450
High Flux
Sendust
Mega Flux
Iron Fe-Si Strip
(Gap) Amorphous
(Gap) Ferrite (Gap)
26-160 26-125 26-90 10-100
15
Low
Best
Medium
10
Low
Good
Low
16
Medium Best
Low
10
High
Poor
Lowest
20
High
Better Lowest
15
Low
Better Medium
3-5
Lowest Poor
Lowest
Better Good Better Poor Good Good Poor
500 500 700 770 740 399 100~300

○
Mold Size
4
10
6
6
6
5
7
Design Tool
○
○
○
○

ER
Ellipse
○
○
○
○
○
○
○
○
○
5
5
△
○
2. Special Shape Powder Core
1. Big Toroidal Core
(1) Features/特性
• Out Diameter 100, 132, 165mm/外徑 • MPP, High Flux, Sendust, Mega Flux/材質 • Electrical Characteristics are Same with Small toroid cores /特性同我們常見的SIZE
Sendust : CS
Fe + Si +Al Alloy/鐵硅鋁合金
Mega Flux : CK Fe + Si Alloy/鐵硅
MPP : CM
Ni + Fe + Mo Alloy /鐵鎳鉬

完成
性能測試
1. Toroidal Core
4. Material Comparison /材料比對表
(2) Application/應用

Core Design 8. Winding (3) Winding Method vs Impedance/繞線方法與阻抗

Core Design 9. Temperature Rising/溫升

Block
E
EER
EQ
Cylinder
Round Block
U
Materials Perm.
26μ
○
○
○
○
○
○
○
MegaFlux 40μ
○
○
○
○
○○○来自60μ○○
○
○
○
○
○
26μ
○
○
○
○
○
○
Sendust 40μ
○
○
○
○
○
○
60μ
○
○
○
○
26μ
○
○
○
○
○
HighFlux 40μ
○
○
○
○
○
60μ
○
○
○
○

Core Design
7. Inductance/電感
(2) Height Change & Stack/高度變化及堆疊 • Energy Storage Capacity : LI2 [L=Inductance(mH), I=Current(A)]/功率容量 • Increase Energy Storage Capacity with same OD, ID size à Height Increase or Stacking 增加功率在相同的OD.ID的情況下,可通過增加高度及疊加方式增加
Core Design
6. Material Selection/材料的選用
•When you design and select the right material, core cost is the most important factor but there need many other consideration 設計時除考量成本為主外還要考量到實際應用需求
1. Toroidal Core
5. Electrical Characteristics of High Flux Material /CH材料電氣特性
2010
60μ
DCB% @100 Oe
Core Loss @50kHz,1000G