“Among our common Electronic components, SMD inductors are common. SMD applications are very wide. However, SMD inductors have the same functions in circuits. SMD inductors have two basic functions. It is the circuit resonance and choke reactance, so let’s talk about the application of the two basic functions of chip inductance in the circuit.
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Among our common electronic components, SMD inductors are common. SMD applications are very wide. However, SMD inductors have the same functions in circuits. SMD inductors have two basic functions. It is the circuit resonance and choke reactance, so let’s talk about the application of the two basic functions of chip inductance in the circuit.
The function of the chip Inductor is to choke and filter and filter out high-frequency clutter, and it has the function of energy storage. It is used in the power filter circuit and focuses on suppressing conductive interference. A large number of inductive components and EMI filter components are used in the PCB circuit of electronic equipment. Such as chip inductors. The advantages of surface mount components are the small package size and the ability to meet actual space requirements. Except for the difference in impedance value, current carrying capacity and other similar physical characteristics, the other performance characteristics of through-hole connectors and surface mounters are basically the same.
Detailed explanation of circuit resonance and choke reactance of chip inductors
When the chip Inductor is used in the circuit, the inductor is required to fulfill two basic functions: circuit resonance and choke reactance. The resonance circuit includes a resonance generating circuit, an oscillating circuit, a clock circuit, a pulse circuit, a waveform generating circuit, and so on. The resonant circuit also includes a high-Q bandpass filter circuit. To make the circuit resonate, there must be chip Capacitors and chip inductors in the circuit at the same time.
There is parasitic capacitance at both ends of the chip inductor, which is caused by the fact that the ferrite body between the two electrodes of the device is equivalent to the capacitive medium. In the resonant circuit, the inductor must have high Q, small tolerances, and stable temperature coefficient to achieve the narrow band of the resonant circuit and low frequency temperature drift. High-Q circuits have sharp resonance peaks. Inductance bias with a small tolerance ensures that the resonance frequency deviation is as small as possible. The stable temperature coefficient ensures that the resonant frequency has stable temperature change characteristics. The difference between standard radial lead inductance and axial lead inductance and chip inductance is only in the package.
The chip inductor structure includes coils wound on dielectric materials (usually alumina ceramic materials), or air-core coils and coils wound on ferromagnetic materials.
In power inductor applications, when used as a choke coil, the main parameters of the inductor are DC resistance (DCR), rated current, and low Q value. When used as a filter, it must look at the broadband characteristics, so the high-Q characteristics of the inductor are not required. Low DCR can ensure a small voltage drop. DCR is defined as the DC resistance of the component without an AC signal.
Among our common electronic components, SMD inductors are common. SMD applications are very wide. However, SMD inductors have the same functions in circuits. SMD inductors have two basic functions. It is the circuit resonance and the choke reactance, so let’s talk about the application of the two basic functions of the chip inductor in the circuit for us.
The function of the chip inductor is to choke and filter and filter out high-frequency clutter, and it has the function of energy storage. It is used in the power filter circuit and focuses on suppressing conductive interference. A large number of inductive components and EMI filter components are used in the PCB circuit of electronic equipment. Such as chip inductors. The advantages of surface mount components are the small package size and the ability to meet actual space requirements. Except for the difference in impedance value, current carrying capacity and other similar physical characteristics, the other performance characteristics of through-hole connectors and surface mounters are basically the same.
Detailed explanation of circuit resonance and choke reactance of chip inductors
When the chip inductor is used in the circuit, the inductor is required to fulfill two basic functions: circuit resonance and choke reactance. The resonance circuit includes a resonance generating circuit, an oscillating circuit, a clock circuit, a pulse circuit, a waveform generating circuit, and so on. The resonant circuit also includes a high-Q bandpass filter circuit. To make the circuit resonate, there must be chip Capacitors and chip inductors in the circuit at the same time.
There is parasitic capacitance at both ends of the chip inductor, which is caused by the fact that the ferrite body between the two electrodes of the device is equivalent to the capacitive medium. In the resonant circuit, the inductor must have high Q, small tolerances, and stable temperature coefficient to achieve the narrow band of the resonant circuit and low frequency temperature drift. High-Q circuits have sharp resonance peaks. Inductance bias with a small tolerance ensures that the resonance frequency deviation is as small as possible. The stable temperature coefficient ensures that the resonant frequency has stable temperature change characteristics. The difference between standard radial lead inductance and axial lead inductance and chip inductance is only in the package.
The chip inductor structure includes coils wound on dielectric materials (usually alumina ceramic materials), or air-core coils and coils wound on ferromagnetic materials.
In power inductor applications, when used as a choke coil, the main parameters of the inductor are DC resistance (DCR), rated current, and low Q value. When used as a filter, it must look at the broadband characteristics, so the high-Q characteristics of the inductor are not required. Low DCR can ensure a small voltage drop. DCR is defined as the DC resistance of the component without an AC signal.
The Links: 104PW191 G156HTN021