Chip inductance effect

Chip inductors are electromagnetic induction components made by winding insulated wires. It belongs to commonly used inductance components. The function of SMD inductor: DC resistance is used to isolate and filter AC signals, or to form a resonant circuit with capacitors, resistors, etc. The function of tuning and frequency selection inductor: The inductance coil and capacitor can be connected in parallel to form an LC tuning circuit. Any current in a circuit generated by a chip inductor generates a magnetic field, and the magnetic flux of the magnetic field acts on the circuit.
When the current passing through the chip inductor changes, the DC voltage generated in the chip inductor will prevent the current from changing. When the current passing through the inductance coil increases, the self induced electromotive force generated by the inductance coil is opposite to the direction of the current, preventing the increase of the current and converting a portion of electrical energy into magnetic field energy to be stored in the inductance; When the current passing through the inductance coil decreases, the self induced electromotive force is in the same direction as the current, preventing the decrease in current and releasing stored energy to compensate for the decrease in current. Therefore, after being filtered by inductance, not only does the fluctuation of load current and voltage decrease, the waveform becomes smooth, but also the conduction angle of the rectifier diode increases.
The role of inductance 1: Color ring inductance has a blocking effect: The copper core in the color ring inductance coil is always resistant to changes in current in the coil. The color ring inductance has a blocking effect on the AC current used in the circuit, and the magnitude of the blocking effect is called inductance XL, which is measured in ohms. The relationship between it and the inductance L and the AC frequency f is XL=2 π fL, and the color ring inductance can be mainly divided into high-frequency and low-frequency resistance coils.
The function of inductance 2: The color ring inductance has the function of tuning and frequency selection: The color ring inductance and electrolytic capacitor can be connected in parallel to form an LC tuning circuit. During resonance, the inductance and capacitance of the circuit are equivalent and opposite, that is, the inherent oscillation frequency f0 of the circuit is equal to the frequency f of the non AC signal, so the inductance and capacitance of the circuit are also equal. The use of color ring inductance is generally not very high, and the use of color ring inductance in the circuit is generally relatively stable.
The function of inductance 3: The maximum function of color ring inductance is to filter signals, filter noise, stabilize current, and suppress electromagnetic interference. The basic function of a color ring inductor is to charge and discharge, but many circuit phenomena extended by this basic charge and discharge function make the color ring inductor have various different uses. Nowadays, color ring inductors have been widely used by customers, but the role played by small inductors is not underestimated.