20AT 30AT Inductor Cut-off
20AT 30AT Inductor Cut-off SMD inductors are electromagnetic induction devices wound with insulated wires. It is a commonly used inductive component. The role of the chip inductor: through the DC resistance AC is a simple statement, the AC signal is isolated, filtered or combined with...
20AT 30AT Inductor Cut-off
SMD inductors are electromagnetic induction devices wound with insulated wires. It is a commonly used inductive component. The role of the chip inductor: through the DC resistance AC is a simple statement, the AC signal is isolated, filtered or combined with capacitors, resistors, etc. to form a resonant circuit. Tuning and frequency selective inductance: the inductor and capacitor in parallel can form LC Tuning the circuit. Any current in the circuit of the chip inductor generates a magnetic field, which in turn acts on the circuit.
When the current through the chip inductor changes, the DC voltage potential generated in the chip inductor will prevent the current from changing. When the current through the inductor coil increases, the self-induction electromotive force generated by the inductor coil is opposite to the direction of the current, preventing the increase of the current, and at the same time, converting a part of the electrical energy into a magnetic field can be stored in the inductor; when the current through the inductor coil decreases, The self-induction electromotive force is in the same direction as the current, preventing the current from decreasing and simultaneously releasing the stored energy to compensate for the decrease in current. Therefore, after inductive filtering, not only the pulsation of the load current and voltage is reduced, the waveform becomes smooth, and the conduction angle of the rectifier diode increases.
The role of the inductor 1: color ring inductance has a blocking effect: the copper core in the color ring inductor coil is always resistant to the current in the coil. The color ring inductance has an impediment to the alternating current used in the circuit, and the hindered size is called XL, and the unit is ohm. The relationship between the inductance L and the AC frequency f is XL=2πfL, and the color ring inductance can be mainly divided into a high frequency choke coil and a low frequency choke coil.
The role of the inductor 2: The color ring inductance has the function of tuning and frequency selection: The color loop inductance and the electrolytic capacitor can be connected in parallel to form an LC tuning circuit. When the color-ring inductance is resonant, the inductive reactance and capacitive reactance of the circuit are reversed. That is, the natural oscillation frequency f0 of the circuit is equal to the frequency f of the non-AC signal, and the inductive reactance and capacitive reactance of the loop are also equal. The use of more often will not be very high, the color ring inductance used in the circuit is generally more stable.
The role of the inductor 3: The color loop inductance is mainly used to filter signals, filter noise, stabilize current, and suppress electromagnetic interference. The basic role of the color ring inductor is charging and discharging, but many circuit phenomena extending from this basic charging and discharging function make the color ring inductor have various different uses. Today, the color ring inductance has been used by the majority of customers, and the role of small inductors is not to be underestimated.