The inductance value of the inspection choke coil inductor is too small, the cut-off frequency of filtering is increased, and the suppression ability of interference with the same frequency is weakened. If these three situations occur, it can be concluded that the magnetic ring inductance and winding winding number are not enough. As for other reference how to judge the magnetic ring inductance.
Place of origin:Guangdong,China
Application:networks/switching and auto
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The composition of fe-si-al magnetic powder core includes 85% iron (Fe),9% silicon (Si), and 6% aluminum alloy powder (Al), which has the advantages of high energy storage, high saturation flux density, high permeability C, and stable performance at high temperature. Ideal for power factor correction circuits, it is a low loss and relatively high saturation material.
To understand the installation of ferrite magnetic ring inductors, first understand the ferrite anti-interference core characteristics. It ACTS as a low-pass filter, better solve the power cord, the high frequency interference suppression and connector line problem, and is simple to use, convenient, effective, take up the space is not large, and a series of advantages, with ferrite anti-jamming core to suppress electromagnetic interference (EMI) is a simple and effective method in the economy, has been widely used in a variety of military or civilian, such as computers, electronic devices.
Ferrite is a kind of using high magnetic conductivity material permeability close one or more other magnesium, zinc, nickel and other metal burn together and become, in 2000 ℃ at low frequencies, the sensibility of ferrite anti-jamming core presents very low impedance value, does not affect the useful signal transmission on the data line or telecom. However, in the high frequency band, starting from about 10MHz, the impedance increases, and the inductive component remains small, while the resistivity component increases rapidly. When high-frequency energy passes through the magnetic material, the resistivity component will convert the energy into heat energy and dissipate it. In this way, a low-pass filter is formed to attenuate the high-frequency noise signal greatly, while the impedance of the low-frequency useful signal can be ignored without affecting the normal operation of the circuit.
Can common inductor coils be divided into several types?
1, copper core coil
Copper core coils are used in the ultrashort wave range. The position of the copper core in the coil is used to change the inductance. This adjustment is convenient and durable.
2, color code inductor
A color code inductor is an inductor with a fixed inductance. The method of marking the inductance is marked with a color ring like a resistor.
3, choke (choke)
The coil that restricts the passage of alternating current is called a choke, and is divided into a high frequency choke coil and a low frequency choke coil.
4, deflection coil
The deflection yoke is the load of the output stage of the television scanning circuit. The deflection yoke requires: high deflection sensitivity, uniform magnetic field, high Q value and small volume.