How to adjust the high temperature of the inductor

How to adjust the high temperature of the inductor

It can be said that the temperature of the inductor is too high during use. It can be said that it is a relatively common problem. Some time ago, the editor has shared some articles on the problem of the high temperature of the inductor. Recently, there are still customers and friends inquiring about this problem. If you want to know how to adjust the inductor temperature when it is too high, you first need to find out the cause of the inductor heating in order to prescribe the right medicine.

It is a very normal phenomenon for an inductor to heat up during use, which is actually a typical manifestation of the conversion of electrical energy into heat energy in high school physics. Since inductor heating is a normal phenomenon, why are we discussing how to adjust it? It should be noted here that although the heating of the inductor is a normal phenomenon, the temperature also needs to be within a reasonable range. We usually use the concept of "temperature rise" to measure. If the temperature rise of the inductance is within 45 degrees, the temperature of the inductance is normal. If it exceeds 45 degrees, the temperature of the inductance is too high. It is necessary to analyze the reasons and adjust the inductance scheme.

Because there are many types of inductors, and the application industry is also quite different. This makes the reasons for the high temperature of the inductor are also different. Without considering the specific use environment, it can be detected and analyzed whether it is the cause of the high temperature rise of the inductor from the following aspects:

(1) The coil selection of the inductor is inappropriate;

(2) The powder formula of the magnetic core of the inductor is not suitable;

(3) The type of inductor selected does not conform to the design of the pcb board;

(4) Whether there are defects in the design of the Pcb board.

For the high temperature of the inductor caused by the above reasons, you can refer to the following methods to solve it:

(1) If the temperature rise is caused by the low coil resistance of the inductor, you can increase the frequency of the voltage. As long as the frequency increases, the inductive reactance will also increase, the current will naturally become smaller, and the temperature will also decrease;

(2) The unsuitable solution for the powder formula of the inductor core is to adjust the powder formula; (This is a very test of the scale, experience, technology, etc. of the manufacturer. Without a large number of cases accumulated, it is difficult to give satisfaction in a short time. powder formulation solutions)

(3) If the inductance type selection is not suitable, you can seek the help of professional and technical personnel to re-selection;

(4) Defects in the design of Pcb, the probability of this generally occurring is small. If it is really a design defect of the pcb board, it would be better if it is time to modify the design scheme; if it is no longer possible to redesign, then only the inductance scheme can be changed.

Shenzhen ONESEINE Technology Co., Ltd. was founded in 2006. After years of development, it has become a modern enterprise mainly engaged in automated manufacturing and diversified in inductors and coils.