The attribute of SMD power inductors, and role - Inductive knowledge

by:Thermistor-Mov     2020-06-23
This paper mainly introduces the properties and functions of SMT inductance, this article word count 1020 words, to read the full article 10 minutes. SMD power inductors, this kind of SMT inductance, also known as power inductors, high current inductor. SMT inductance, is an attribute of a closed loop. After the patch through the inductance of the coil current, formed in SMT inductance coil magnetic field induction, induced magnetic field can produce induced current to boycott by the current in the coil. Plays the role of the SMT inductance in the circuit is generated when a steady current through the change of magnetic field, the magnetic field and will in turn affect current, SMT inductance in series such as power supply loop inductance, inductance is direct to dc, is of high resistance to high frequency pulse, so have the effect of dc resistance ac pulse. Attribute SMT inductance, is an attribute of a closed loop. After the patch through the inductance of the coil current, formed in SMT inductance coil magnetic field induction, induced magnetic field can produce induced current to boycott by the current in the coil. Plays the role of the SMT inductance in the circuit is generated when a steady current through the change of magnetic field, the magnetic field and will in turn affect current, SMT inductance in series such as power supply loop inductance, inductance is direct to dc, is of high resistance to high frequency pulse, so have the effect of dc resistance ac pulse. Resistance is used to control the current in the circuit, the capacitor used for blocking circulation exchange, inductance used in high frequency of low frequency, resistance capacitance and inductance are energy storage device on the other hand, so in the circuit and filtering effect. SMT inductance in the circuit has to stop by and let the characteristics of direct current to flow through the ac. The characteristics of inductance is dc, ac, the higher the frequency, the greater the coil impedance. Inductor and often work with capacitance in circuit inductance coil have block communication, change characteristics of current in the circuit. Inductance coil have similar characteristics and mechanics of inertia, called 'self induction on electricity, SMT inductance in low frequency, inductance generally presents the inductance characteristic, is only the energy storage, filter the high frequency characteristics, but in high frequency, the impedance characteristics performance obviously. Have a fever, energy consumption phenomenon such as perceptual effect reduced. Different frequency characteristic of inductance is different. SMT inductance, is to use wire winding insulation and electromagnetic induction element. Belong to common inductance components. SMT inductance: the effect of dc resistance communication this is simple, the ac signal isolation, filtering, or with the capacitor, resistor to form a resonance circuit. Tuning and frequency selective inductance: the effect of inductor and capacitor in parallel can be composed of LC circuit. Any current in SMT inductance in the circuit can produce a magnetic field, the magnetic flux of the magnetic field ACTS on the circuit. When the SMT inductance current through changes, SMT inductance of dc voltage is set to prevent the change of the current. When through the inductor current increases, and the self-induced electromotive force produced by inductance coil electricity through the inductor current, small self induction electromotive force and the current in the same direction, to stop the decrease of the current, release the stored energy at the same time, to compensate for the decrease of the current. Flow direction on the contrary, stop the current increase, at the same time, will be part of the electrical energy is converted into the magnetic field can be stored in inductance; So after inductance filter, not only the pulse load current and the voltage is reduced, the waveform is smooth, and rectifier diode conduction Angle increases. Article/tpgldgdsxy. HTML this paper label: inductors SMD power inductor elegance an inductance: thermistor, thermistor under the parsing of an article: safety capacitors, safety capacitors have polarity
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