Some common inductor types

Last Update Time: 2019-01-14 14:09:05

1.Variable inductance coil is used to adjust the inductance, to change the resonance frequency or the tightness of the circuit coupling. Typically, the four methods are used for winding:

1 ) Inserting the core and the copper core in the online circle.

2 ) Installing a sliding contact in the online coil.

3 ) The two coils are connected in series and the relative positions between the two coils are uniformly changed so as to change the mutual inductance.

4 ) The coil leads to a number of taps, connected through the band switch.

 

2. The color code inductor is the inductor with a fixed inductance, the inductance of the inductor is the same as the resistor,is marked by the color ring method.

 

The structure of the utility model is that the copper wires of different diameters are wound around the magnetic core according to the requirements of different inductance, and the copper wires with different diameters are packaged or sealed with epoxy resin. It is mainly used in circuits such as oscillation, filtering, stop-flow, and notch.

The color code inductor is characterized by small size, small weight and firm and reliable structure. According to the different direction of the lead, it can be divided into bidirectional extraction and one-way extraction.

 

3. Choke ring (choke)

The coil to restrict alternating current is called choke ring, which is divided into two types: high frequency choke and low frequency choke. The low frequency choke is used in power and audio filter circuits. It usually has a large inductance, which can reach several tens of tens of times, so it has great impedance for alternating current. The choke has only one winding, and the core is made of silicon steel sheet in the winding. The air gap is left in the silicon steel sheet to reduce magnetic saturation.

 

4. Deflection coil

The deflection coil is the load of the output level of the TV scanning circuit. The requirements for the deflection coil are: high deflection sensitivity, uniform magnetic field, high Q value, small volume and low price.

 

5. There are many types of wound inductors wound around linear chip inductors, such as I-shaped, trough, rod and cavity structures, the inductance range is wide, the Q value is high, the technology is simple, so the most used in the chip inductor, but the volume is big, and the heat resistance performance is poor.

 

6. The multilayer chip inductor has the advantages of small size, good heat resistance, good welding performance, and closed magnetic circuit structure so that it does not disturb the surrounding elements and is not easy to be affected by the week the interference of the device is conducive to improving the assembly density of components.

 

7. The chip magnetic bead is a kind of inductor that fills the core. Its impedance increases rapidly at high frequency, so it can suppress the electromagnetic interference clutter generated by the electromagnetic interference source in various electronic circuits, the utility model has the characteristics of small, thin and high impedance, which is suitable for peak welding and reflow welding, and has been widely used in various products.

 

If you want to know more, our website has product specifications for the inductors, you can go to Allicdata Electronics Limited to get more information.