How to solve the heating condition of the chip inductor magnetic coil？

The induction electromagnetic coil heats up because the resistance of the induction electromagnetic coil is very low. After the 220V working voltage is added, a large current will be generated. The current will be very hot immediately. You can try to increase the working voltage frequency, increase the frequency, increase the inductance, and the current Become smaller.

1. When the wire becomes thinner, the current of the chip inductor is quite large, and when the effective value is constant, the pole heats normally.

2. In the saturation state of the inductor, this heating is also widespread.

3. There is a large vibrating working voltage on both sides of the sensor.

It is recommended to replace the magnetic core, which can reduce the number of coil turns and reduce the wire length. The positive patch output power inductor manufacturer stimulates the conversion, the harmonic distortion current is small, the magnetic loss is small, mainly due to resistance heat, check the filter capacitor, some capacitors are invalid, causing the patch inductor to overheat and fade.

Is the chip inductor bead connected to the back of the rectifier? If a filter capacitor is developed at the front end of the inductor, please check whether there is a lead.

At this time, the switching power supply has two kinds of the same inductor, one is in the positive stage, and the other is in the negative stage (not broken). The front of the inductor is a controllable field tube without other capacitors. According to these two types of one The positive and negative inductors connect an electromagnetic coil to the power supply, and the control plan given by the water pipe developed at the front end is a single-pulse direct current.

1. If the circuit is thin, it will cause the inductance and resistance to be quite large. When the effective value of the current is good, the pole heating is normal.

2. There is a large vibration working voltage on both sides of the laminated sensor.

3. SMD inductance is saturated. This kind of heating is also very common. Change the magnetic core to a larger one. This can reduce the number of coil turns, reduce the line length and conversion, the harmonic distortion current is small, the magnetic loss is small, and the main reason is resistance heating.

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