Common mode chokes, or common mode inductors, consist of two or more coils of insulated wire on a single magnetic core. Each winding is put in series with one of the conductors. This means that the magnetic fields of the wires combine to present high impedance to the noise signal.
Common mode choke is an inductive device used to suppress common mode interference signals. Its main features are that it can suppress common-mode interference signals, realize differential mode conversion, have large inductance value, and small size. Common mode inductors can be used in power supply, communications, computers, medical care, industrial automation and other fields. It is often used in computer switching power supplies to filter common mode electromagnetic interference signals.
In the computer field, common mode inductors are widely used in network communications, servers, data centers and other places. In these places, common-mode inductors can effectively suppress common-mode noise on power lines or signal lines, ensuring the stability and integrity of data transmission.
In addition to the computer field, common mode inductors have also found wide applications in automotive electronics, medical equipment, industrial control and other fields. In these situations, common mode inductors can also play a role in suppressing common mode interference and improving signal quality.
In the field of automotive electronics, common mode inductors are used to suppress common mode noise on automotive power lines to ensure stable operation of automotive control systems. In the field of medical equipment, common mode inductors can be used to suppress electromagnetic interference on the power lines of medical equipment, thereby improving the electrical performance and reliability of medical equipment. In the field of industrial control, common mode inductors can be used to suppress common mode noise on signal lines in industrial control systems, thereby improving the accuracy and stability of the control system.
Rated current: 0.3 to 10A
Low resistance
0.7 to 100mH dual choke
100kHz to 3MHz common mode resonance
Low temperature rise
Applied in DC/DC, AC/DC line noise suppression, telecommunication system, LCD/PDP televisions, and computer periph
Looking for Common Mode Chokes and PFC with customized values to your application? aiia Transformer, as an experienced transformer manufacturer, offers the best technical solutions for any customer requirement.
aiia is able to supply a vast range of products with dimensional and technical characteristics that go from the standard to the most complex customization, both with horizontal or vertical bobbins or with toroid cores.
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Applications:
It can beused for EMI common mode filter of all kinds of power supply
Features:
High saturationmagnetic induction (1.25T), high permeability, high inductance (¡Ý 10 times of the amount of ferrite inductors), low loss, small size, light weight, strong anti-electromagnetic interference capability, excellent frequency characteristics , and high temperature stability.
Performance: Iron Core Material
1K201
1K107
Saturation magnetic flux density (T)
0.6¡«0.8
1.25
Applications:
It can be used for EMI common mode filter of all kinds of power supply
Features:
High saturation magnetic induction (1.25T), high permeability, high inductance ( 10 times of the amount of ferrite inductors), low loss, small size, light weight, strong anti-electromagnetic interference capability, excellent frequency characteristics , and high temperature stability
Residual magnetic flux density (T)
0.3,0.5
0.5,0.8
Initial permeability
>80,000
>80,000
Maximum permeability
>600,000
>600,000
Coercivity (A / m)
< 2
< 2
Iron loss (20kHz, 0.5T), w / kg
< 25
< 25
Iron Loss (100kHz, 0.2T), w / kg
< 60
< 70
Iron loss rate of change (-50 ~ 130oC)
15
Applications:
It can be used for output filter inductors, smoothing inductors, energy storage inductors of all kinds of power supplies and energy-saving lamp electronic ballasts, and the differential-mode inductance in the EMC filters.The open iron core has a good constant inductors properties and anti-DC bias capability. With low-loss, it can be used as inductor iron core of a variety of power supply.
Features:
The open iron core has a good constant inductors properties and anti-DC bias capability. With low-loss, it can be used as inductor iron core of a variety of power supply.
Specification and Performance of the Iron Core:
Specification of the Iron Core
Effective permeability
Transverse Magnetic Range (Oe)
The rate of change (%)
12/20, 8
180
0¡«50
15
12/20, 10
180
0¡«50
15
16/26, 10
1000
0¡«10
20
300
0¡«30
15
180
0¡«50
15
20/32, 10
1000
0¡«10
20
300
0¡«30
15
180
0¡«50
15
20/30, 15
1000
0¡«10
20
300
0¡«30
15
180
0¡«50
15
32/50, 10
1000
0¡«10
20
300
0¡«30
15
180
0¡«50
15
32/50, 15
1000
0¡«10
20
300
0¡«30
15
180
0¡«50
15
Note: Iron cores of other specifications can be provided upon request of users.
INTRODUCTION:
SPIKE SUPPRESSOR
1. Better temperature stability
2. Excellent impedance-frequency charcteristics
3. Outstanding resistance to unbalanced current
4. High saturation magnetic induction intensity-effectively reduce the size of common mode inductors
APPLICATION:
1. Inverter circuit
2. InverterÃ?Â
3. UPS
4. Switching power supply
5. EMC filter inductor
6. New energy such as solar energy, wind energy
Application
1. Inverter circuit
2. Inverter
3. UPS
4. Switching power supply
5. EMC filter inductor
6. New energy such as solar energy, wind energy
Magnetic amplifier switching power supply
â?? Spike Suppressorï¼?
1. Better temperature stability
2. Excellent impedance-frequency characteristics
3. Outstanding resistance to unbalanced current
4.High saturation magnetic induction intensity - effectively reduce the size of common mode inductors
Features
.High initial permeability and high AL value
.High effective insertion loss and excellent noise suppression
.Wide frequency range,large adjustable range for permeability from 20000-160000
.Low core loss, small choke size for volume and wieght with epoxy coating
Application:
.Switched-mode Power supplies
.EMI common mode filter
Co-based amorphous core in plastic container
1. high permeability
2.Thickness (1820 mkm)
3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop
4. Common-mode filter chokes, current transformers, including for precise electronic electricity meters, protective cutout, High Frequency power transformers in SMPS, audio transformers, etc.
5.D from 4-32mm
Ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant.
Co-based amorphous ribbon wound magnetic core is placed into hard protective container of glass-polyamide and mechanically fixed with silicone sealant.Size veries:outer D =4-32mm.The container has rounded edges and is designed for direct winding of a thick wire. The container provides reliable mechanical protection and preservation of amorphous material's properties. All materials comply with UL94V-1 / 0.
1. High permeability
2.Thickness (1820 mkm)
3. Annealing in transverse field, permeability more than 100000, very low loss, flat hysteresis loop
4. KEY FEATURES OF THE AMORPHOUS MATERIAL:
Induction amplitude, Bm (25C) 0.59 T
Induction amplitude, Bm (90C) 0.50 T
Curie temperature, Tc 220C
Operating temperature range -60C ... 100C
Magnetostriction less than 0.110^-6
Typical permeability (10 kHz) - 120 000
Typical permeability (100 kHz) - 35 000
Introduce:
The emc standard of frequency range of 150 khz-30mhz on restraining the conducted cm emi are becoming more serious in the application. Cm inductance & filter capacitor were used to restrain the cm emi. Ferrite core or common nano-crystalline core are popular in domestic market as common mode choke cores, but high high-frequency volume and impedance reduction from 150 khz to 30mhz due to the operating frequency limitation makes these cores unworkable. In this ease, nicore developed advanced higher property nano-crystalline common mode choke cores as solution for emc common mode choke cores requirement, and were applied to the emc of switch power modules, ups power supply, communication power supply, inverter, transducer, home appliance.
Characteristics:
- high initial permeability: 5~20 times higher than ferrite core
- high saturate induction density: 2-3 times higher than ferrite core, not easy be saturated in high current fields
- excellent temperature stability-with the serving temperature from -55 to 130"c for a long time. The curie temperature is higher. The properties are not changeable easily even in unstable working temperature.
- good frequency flexibility-better controlling to the noise in different frequencies.
- higher anti-unbalanced-current: specially made nano-crystalline emc common mode choke cores can guarantee 104 permeability when resist 80a/m unbalanced current bias field.
Application area:
- protection for accurate electronic equipment
- common mode jams filtering for emi power
- common filtering in single phase or three phase circuit
Rapid prototype, 3D printing, Mold designing, Project management, Production development, Mass Production,
Insert mold, MUD mold, Over mold, 2 Color mold/Bi-color mold, Stack mold, Unscrewing mold, Prototype mold, Multi-cavities, Hot Runner, 3-Plate molds and parts, etc.
Injection molding, Assembly, Product surface treatment, Packing, Transportation and so on.
Serving for AUTOMOTIVE, MEDICAL, ELECTRONICS, OA Equipment, INDUSTRIAL products and CONSUMER industries.
Common mode choke is an important component in switching power supply, frequency inverter and ups. The choking
High magnetic permeability
Good frequency performance, initial permeability µ 0 can be adjusted according to insertion loss in different frequency ranges, which varies from 30000~100000
Very high initial permeability, an effective suppression of emi spike noise.
Huge ranges of permeability adjustment
Types:
EC type high frequency switch transformer
EE, EI type high frequency switch transformer
PQ type high frequency switch transformer
EFD type high frequency switch transformer
EP type magnet-shielding switch transformer
RM type communication filter, aux power transformer
ET and FT type linearity filter
T (ring) type filter and switch transformer
G (jar-shaped) switch transformer
DR (I) type transformer
T (ring) iron power core, DC filter inductor
Applications: switching power supplies, chargers, TV and CRT monitor display, UPS, VCD/DVD players, audio and visual equipment, OA machines, and inverter
