Anhui Astromagnet Co., Ltd.

China Manufacturer with main products: Speaker & Motor Magnets, Ndfeb Magnet, Ferrite Magnets, Flexible Magnets, Alnico Magnets, Smco Magnets, Magnetic Assemblies, Amorphous and...

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Core in High-Power Switching Mode Power Supply Transformer

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Oceania, Eastern Asia, Western Europe
Place of Origin: Anhui in China

Quick Details

  • Brand Name: ASTROMAGNET
  • Model Number: AMND-503220
  • material: nanocrystalline
  • shape: toroid

Specifications

Power inverter welding power single-ended pulse transformer requires its core a low high frequency loss, a high saturation flux density Bs, low residual magnetic induction Br to reach a biggest work magnetic
induction △B; output filtering and stored induction requires a high saturation flux density, low loss and
constant magnetic properties, therefore transverse magnetic heat treatment process is needed to reach
that properties.
 
Applications :

▲ Power supply of inverter welding machine
▲ Power supply of X-ray, laser and communication device
▲ UPS and high frequency induction heating power supply
▲ Charging power supply
▲ Electroplating Power supply
▲ Frequency modulation speed electrical power
 
Properties :
 
▲ High saturation flux density---an effective reducing component' s sizes
▲ High magnetic permeability and low coercivity---result in improving transformer efficiency, reducing exciting power
▲ Low remanence(Br≤ 0.2T)--result in bigger induction increasing and bigger output power
▲ Low loss---result in lowing the temperature rising of transformer
▲ Good temperature stability---workable for long under temperature up to 130° C
 
 
Performance :
▲ Performance compared with ferrite core
 
Basic magnetic parameter
Nanocrystalline core
Ferrite core
Saturation flux density Bs(T)
1.25
0.5
Residual magnetic flux density Br(T) (20KHz)
< 0.20
0.2
Core loss (20KHz/0.2T) (W/Kg)
< 3.4
7.5
Core loss (0KHz/0.5T) (W/Kg)
< 35
---
Core loss(50KHz/0.32T) (W/Kg)
< 40
---
Magnetic permeability (20KHz)
(Gs/Oe)
> 20,000
2000
Coercivity Hc (A/m)
< 1.60
6
Saturation magnetostriction coefficient
(× 10-6)
< 2
4
Resistivity (mW. Cm)
80
106
Curie temperature Tc (℃)
570
< 200
Disc coefficient
> 0.75
 
 
 
 
Item list :
 
 
Ref.
Core size
Housing size
Magnetic
path length
Net
sectional
area
Weight
For current
 
od
id
ht
OD
ID
HT
Le
Ae
W
I
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(cm)
(cm2)
(g)
(A)
AMND-503220
50
32
20
53
28
23
1.35
12.8
125
120, 140, 160
AMND-644020
64
40
20
66
37
23
1.68
16.3
200
160, 180
AMND-704020
70
40
20
73
38
24
2.16
17.3
270
180, 200
AMND-704025
70
40
25
72
37
28
2.63
17.3
330
180, 200
AMND-805020
80
50
20
82
46
23
2.1
20.4
300
160, 180, 200
AMND-805025
80
50
25
85
44
30
2.63
20.4
390
200, 250, 300
AMND-
1006020
100
60
20
105
56
23
2.8
25.1
510
315, 350, 400
AMND-
1056030
105
60
30
110
56
35
5.06
25.9
945
315, 350, 400
AMND-
1206030
120
60
30
125
57
35
6.3
28.3
1280
400, 500, 630
AMND-
1207020
120
70
20
125
67
25
3.5
29.8
750
350, 400, 500
AMND-
1207025
120
70
25
125
67
30
4.38
29.8
940
315, 350, 400
AMND-
1207030
120
70
30
125
67
35
5.25
29.8
1130
500, 630, 800
AMND-
1207040
120
70
40
125
67
45
7
29.8
1500
500, 630, 800,
AMND-
1308040
130
80
40
136
76
45
7
33
1660
500, 630, 800
AMND-
16511050
165
110
5 0
170
104
55
10.5
43.96
3320
1000, 1250, 1600
 
Remarks:
1. Customized cores of other sizes and different characteristics available upon request.
2. Core housing can be stainless steel, metal Aluminum, plastic, etc.
3. Customized winding transformer can be made upon request.
 

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