The function of patch winding inductance. The basic functions are filtering, oscillation, delay, trap and so on.

Detailed explanation: In electronic circuits, inductance coil acts on AC finite current, and it can form high-pass or low-pass filters, phase-shifting circuits and resonant circuits with resistors or capacitors; transformers can perform AC coupling, voltage conversion, current conversion and impedance conversion, etc.

The function of patch winding inductor seems to be somewhat opposed. We said that capacitance is traffic resistance, while inductance is just the opposite. Its function is traffic resistance, what is it? The direction of the magnetic field generated by DC inductance is consistent and will not change. The alternating current is positive and negative, so the magnetic field will also change. Because it is a very short time from positive (negative) to negative (positive), assuming that the positive potential is rising at first, the magnetic field around the inductor will increase continuously. At the top of the inductor, the potential will begin to decline. Because there is a magnetic field around the inductor, the inductor will change at this time. The surrounding magnetic field is converted into electricity, so that the energy can be maintained for a period of time, and vice versa, thus preventing the passage of alternating current.

Another difference between wound inductors

Chip inductor:

1. Surface mount high power inductor.

2. It has the characteristics of miniaturization, high quality, high energy storage and low resistance.

3. It is mainly used in computer display card, notebook computer, pulse memory programming and DC-DC converter.

4. Reel packing is available for automatic surface mounting.

Characteristic:

1. Flat bottom surface is suitable for surface mount.

2. Excellent solder joints with good end strength.

3. It has the characteristics of high Q value and low impedance.

4, low magnetic flux leakage, low direct resistance and high current resistance.

5, tape packing can be provided to facilitate automatic assembly.