What is the use of ferrite cores? Ferrite core manufacturers introduce to you!
Ferrite core manufacturers kindly remind that ferrite cores refer to sintered magnetic metal oxides composed of various iron oxide mixtures. For example, ferrite and nickel-zinc ferrite are typical magnetic core materials, and ferrite has the characteristics of conductivity, flux density, and low loss. Ferrite has the characteristics of extremely high impedance and magnetic permeability of less than a few hundred, and is used in coils and transformers of various electronic equipment.
Coils wound on the magnetic core can be made into voltage inductors or transformers, which are widely used in instrumentation, communication equipment and household appliances. Compared with other types of magnetic materials, ferrites have the advantages of high permeability, high resistance and low eddy current losses over a wide frequency range.
Ferrite is a ferromagnetic metal oxide. In terms of electrical properties, the resistivity of ferrite is much higher than that of metals and alloys, and it also has better dielectric properties. The magnetic properties of ferrite also show that it has high permeability at high frequencies. Therefore, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.
Ferrite core manufacturers: The core is mainly composed of three metal elements, iron (Fe), manganese (Mn), and Zn, usually called manganese-zinc ferrite. Structure, low coercivity, also known as soft ferrite, the ferrite raw material is pressed, sintered at 1300 ° C, and machined into a finished magnetic core that meets the requirements of use. Compared with other types of magnetic materials, ferrite has the advantages of high permeability, high resistance, and low eddy current loss in a wide frequency range. These material properties make ferrite an ideal material for the manufacture of high-frequency transformers, broadband transformers, adjustable voltage sense and other high-frequency circuits from 10kHz to 50MHz.
Ferrite core manufacturers: The materials of ferrite cores are characterized by high magnetic permeability and good temperature characteristics. Ferrite materials have many grades and various geometric shapes, such as cylindrical, I-shaped, hat-shaped, single-hole, double-hole, four-hole, U-shaped, pot-shaped, E-shaped, etc. Magnetic cores of various shapes and sizes are used in voltage inductors, pulse transformers, high frequency transformers and noise filters in the high frequency power supply and good quality communications markets. The coil wound on the magnetic core can be made into a transformer, which is widely used in instrumentation, communication equipment and household appliances.
Compared with the air-core coil of the same volume, the ferrite core has a larger inductance and a better Q value (quality factor) because of the voltage inductance made by winding the coil on the core. For example, using Gu-2213 pot-shaped magnetic core to make 4mH inductance, you only need to wind 43 turns. If you replace the pot-shaped magnetic core with an air-core coil, you need 600 turns to get 4mH voltage inductance. It can be seen that the use of magnetic cores can greatly reduce the volume of inductors or transformers.
